./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/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_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/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_ca41c566-2714-40f4-94e0-8d25c63d81a7/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 7aff0c23635f1e1acd85672a1024d6cb6d0af57cad0028c56f5d301198b4eae6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:46:07,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:46:07,822 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 00:46:07,826 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:46:07,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:46:07,849 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:46:07,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:46:07,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:46:07,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:46:07,852 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:46:07,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:46:07,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:46:07,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:46:07,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:46:07,855 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:46:07,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:46:07,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:46:07,856 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:46:07,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:46:07,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:46:07,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:46:07,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:46:07,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:46:07,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:46:07,859 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:46:07,859 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:46:07,860 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:46:07,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:46:07,860 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:46:07,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:46:07,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:46:07,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:46:07,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:46:07,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:46:07,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:46:07,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:46:07,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:46:07,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:46:07,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:46:07,863 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:46:07,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:46:07,864 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:46:07,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:46:07,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:46:07,864 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_ca41c566-2714-40f4-94e0-8d25c63d81a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7aff0c23635f1e1acd85672a1024d6cb6d0af57cad0028c56f5d301198b4eae6 [2023-11-29 00:46:08,091 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:46:08,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:46:08,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:46:08,127 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:46:08,128 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:46:08,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c [2023-11-29 00:46:10,824 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:46:10,998 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:46:10,999 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound50.c [2023-11-29 00:46:11,007 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/data/9778bc1e4/4c982fce188e434790182e2cbbf713be/FLAGed93fd880 [2023-11-29 00:46:11,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/data/9778bc1e4/4c982fce188e434790182e2cbbf713be [2023-11-29 00:46:11,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:46:11,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:46:11,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:46:11,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:46:11,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:46:11,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d04e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11, skipping insertion in model container [2023-11-29 00:46:11,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,050 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:46:11,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:46:11,217 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:46:11,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:46:11,248 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:46:11,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11 WrapperNode [2023-11-29 00:46:11,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:46:11,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:46:11,250 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:46:11,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:46:11,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,284 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2023-11-29 00:46:11,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:46:11,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:46:11,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:46:11,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:46:11,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,298 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,310 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 00:46:11,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:46:11,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:46:11,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:46:11,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:46:11,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (1/1) ... [2023-11-29 00:46:11,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:46:11,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:11,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:46:11,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 00:46:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 00:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:46:11,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:46:11,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:46:11,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 00:46:11,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 00:46:11,449 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:46:11,451 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:46:11,647 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:46:11,672 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:46:11,673 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 00:46:11,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:46:11 BoogieIcfgContainer [2023-11-29 00:46:11,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:46:11,677 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:46:11,677 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:46:11,680 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:46:11,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:46:11" (1/3) ... [2023-11-29 00:46:11,681 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699334cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:46:11, skipping insertion in model container [2023-11-29 00:46:11,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:46:11" (2/3) ... [2023-11-29 00:46:11,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699334cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:46:11, skipping insertion in model container [2023-11-29 00:46:11,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:46:11" (3/3) ... [2023-11-29 00:46:11,683 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound50.c [2023-11-29 00:46:11,700 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:46:11,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-29 00:46:11,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:46:11,745 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;@2ccc0a35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:46:11,745 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-29 00:46:11,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 35 states have (on average 1.8) internal successors, (63), 57 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:46:11,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 00:46:11,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:11,756 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:11,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:11,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:11,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1616721719, now seen corresponding path program 1 times [2023-11-29 00:46:11,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:11,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099471801] [2023-11-29 00:46:11,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:11,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:11,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:11,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099471801] [2023-11-29 00:46:11,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 00:46:11,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094545165] [2023-11-29 00:46:11,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:11,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:11,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:11,877 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:11,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:46:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:11,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 00:46:11,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:11,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 00:46:11,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:46:11,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094545165] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:11,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:11,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:46:11,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019144958] [2023-11-29 00:46:11,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:11,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:46:11,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:11,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:46:11,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:46:11,996 INFO L87 Difference]: Start difference. First operand has 64 states, 35 states have (on average 1.8) internal successors, (63), 57 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:46:12,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:12,022 INFO L93 Difference]: Finished difference Result 126 states and 143 transitions. [2023-11-29 00:46:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:46:12,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-29 00:46:12,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:12,030 INFO L225 Difference]: With dead ends: 126 [2023-11-29 00:46:12,030 INFO L226 Difference]: Without dead ends: 61 [2023-11-29 00:46:12,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 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 00:46:12,036 INFO L413 NwaCegarLoop]: 66 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, 66 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 00:46:12,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:46:12,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-29 00:46:12,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-29 00:46:12,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 55 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:46:12,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2023-11-29 00:46:12,069 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 14 [2023-11-29 00:46:12,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:12,069 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2023-11-29 00:46:12,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:46:12,070 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2023-11-29 00:46:12,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 00:46:12,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:12,072 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:12,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:46:12,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 00:46:12,274 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:12,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:12,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1919924458, now seen corresponding path program 1 times [2023-11-29 00:46:12,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:12,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129235477] [2023-11-29 00:46:12,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:12,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:12,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 00:46:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:12,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 00:46:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:12,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:12,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:12,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129235477] [2023-11-29 00:46:12,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129235477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:12,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:12,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:46:12,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480011156] [2023-11-29 00:46:12,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:12,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:46:12,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:12,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:46:12,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:46:12,415 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:46:12,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:12,461 INFO L93 Difference]: Finished difference Result 75 states and 78 transitions. [2023-11-29 00:46:12,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:46:12,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-29 00:46:12,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:12,463 INFO L225 Difference]: With dead ends: 75 [2023-11-29 00:46:12,464 INFO L226 Difference]: Without dead ends: 65 [2023-11-29 00:46:12,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:46:12,466 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 9 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:12,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 167 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:46:12,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-29 00:46:12,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2023-11-29 00:46:12,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 38 states have (on average 1.631578947368421) internal successors, (62), 59 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:46:12,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2023-11-29 00:46:12,477 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 14 [2023-11-29 00:46:12,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:12,479 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2023-11-29 00:46:12,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:46:12,479 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2023-11-29 00:46:12,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 00:46:12,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:12,480 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:12,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:46:12,481 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:12,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:12,481 INFO L85 PathProgramCache]: Analyzing trace with hash -390003592, now seen corresponding path program 1 times [2023-11-29 00:46:12,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:12,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019577634] [2023-11-29 00:46:12,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:12,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:12,497 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:12,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [689135872] [2023-11-29 00:46:12,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:12,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:12,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:12,499 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:12,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:46:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:12,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 00:46:12,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:12,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:46:12,720 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:46:12,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:12,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019577634] [2023-11-29 00:46:12,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:12,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689135872] [2023-11-29 00:46:12,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689135872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:12,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:12,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:46:12,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757328281] [2023-11-29 00:46:12,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:12,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:46:12,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:12,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:46:12,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:46:12,724 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 7 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:46:12,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:12,884 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2023-11-29 00:46:12,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:46:12,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-29 00:46:12,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:12,886 INFO L225 Difference]: With dead ends: 110 [2023-11-29 00:46:12,887 INFO L226 Difference]: Without dead ends: 104 [2023-11-29 00:46:12,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:46:12,888 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 174 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:12,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 136 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-29 00:46:12,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 88. [2023-11-29 00:46:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.65) internal successors, (99), 81 states have internal predecessors, (99), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:46:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 107 transitions. [2023-11-29 00:46:12,901 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 107 transitions. Word has length 17 [2023-11-29 00:46:12,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:12,901 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 107 transitions. [2023-11-29 00:46:12,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:46:12,902 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 107 transitions. [2023-11-29 00:46:12,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 00:46:12,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:12,903 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:12,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:46:13,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 00:46:13,104 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:13,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:13,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1131295462, now seen corresponding path program 1 times [2023-11-29 00:46:13,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:13,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176020068] [2023-11-29 00:46:13,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:13,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:13,114 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:13,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304228689] [2023-11-29 00:46:13,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:13,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:13,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:13,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:13,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:46:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:13,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:46:13,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:13,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:13,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:46:13,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:13,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176020068] [2023-11-29 00:46:13,194 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:13,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304228689] [2023-11-29 00:46:13,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304228689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:13,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:13,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:46:13,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744823674] [2023-11-29 00:46:13,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:13,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:46:13,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:46:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:46:13,196 INFO L87 Difference]: Start difference. First operand 88 states and 107 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:46:13,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:13,253 INFO L93 Difference]: Finished difference Result 98 states and 118 transitions. [2023-11-29 00:46:13,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:46:13,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-29 00:46:13,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:13,255 INFO L225 Difference]: With dead ends: 98 [2023-11-29 00:46:13,256 INFO L226 Difference]: Without dead ends: 92 [2023-11-29 00:46:13,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 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 00:46:13,257 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 45 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:13,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 65 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:46:13,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-29 00:46:13,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2023-11-29 00:46:13,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 66 states have (on average 1.5303030303030303) internal successors, (101), 83 states have internal predecessors, (101), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:46:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 109 transitions. [2023-11-29 00:46:13,272 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 109 transitions. Word has length 19 [2023-11-29 00:46:13,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:13,272 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 109 transitions. [2023-11-29 00:46:13,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:46:13,273 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 109 transitions. [2023-11-29 00:46:13,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 00:46:13,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:13,274 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:13,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 00:46:13,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:13,475 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:13,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:13,475 INFO L85 PathProgramCache]: Analyzing trace with hash -710420897, now seen corresponding path program 1 times [2023-11-29 00:46:13,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:13,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679522816] [2023-11-29 00:46:13,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:13,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:13,485 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:13,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [421986036] [2023-11-29 00:46:13,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:13,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:13,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:13,487 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:13,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:46:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:13,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:46:13,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:13,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:13,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:46:13,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:13,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679522816] [2023-11-29 00:46:13,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:13,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421986036] [2023-11-29 00:46:13,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421986036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:13,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:13,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:46:13,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271557973] [2023-11-29 00:46:13,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:13,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:46:13,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:13,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:46:13,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:46:13,576 INFO L87 Difference]: Start difference. First operand 90 states and 109 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:46:13,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:13,653 INFO L93 Difference]: Finished difference Result 139 states and 166 transitions. [2023-11-29 00:46:13,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:46:13,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-29 00:46:13,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:13,660 INFO L225 Difference]: With dead ends: 139 [2023-11-29 00:46:13,660 INFO L226 Difference]: Without dead ends: 128 [2023-11-29 00:46:13,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 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 00:46:13,661 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 54 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:13,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 86 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:13,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-29 00:46:13,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2023-11-29 00:46:13,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 90 states have (on average 1.4666666666666666) internal successors, (132), 107 states have internal predecessors, (132), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:46:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 144 transitions. [2023-11-29 00:46:13,678 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 144 transitions. Word has length 20 [2023-11-29 00:46:13,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:13,679 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 144 transitions. [2023-11-29 00:46:13,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:46:13,679 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 144 transitions. [2023-11-29 00:46:13,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 00:46:13,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:13,680 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:13,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:46:13,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:13,880 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:13,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:13,881 INFO L85 PathProgramCache]: Analyzing trace with hash -548211268, now seen corresponding path program 1 times [2023-11-29 00:46:13,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:13,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910499848] [2023-11-29 00:46:13,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:13,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:13,890 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:13,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1943688029] [2023-11-29 00:46:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:13,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:13,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:13,892 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:13,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 00:46:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:13,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:46:13,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:14,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:46:14,024 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:14,258 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:46:14,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:14,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910499848] [2023-11-29 00:46:14,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:14,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943688029] [2023-11-29 00:46:14,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943688029] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:14,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:14,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 00:46:14,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106523459] [2023-11-29 00:46:14,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:14,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:46:14,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:14,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:46:14,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:46:14,261 INFO L87 Difference]: Start difference. First operand 116 states and 144 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:46:14,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:14,537 INFO L93 Difference]: Finished difference Result 136 states and 161 transitions. [2023-11-29 00:46:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:46:14,538 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-11-29 00:46:14,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:14,539 INFO L225 Difference]: With dead ends: 136 [2023-11-29 00:46:14,539 INFO L226 Difference]: Without dead ends: 133 [2023-11-29 00:46:14,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:46:14,540 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 143 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:14,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 165 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:46:14,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-29 00:46:14,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 120. [2023-11-29 00:46:14,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 94 states have (on average 1.4361702127659575) internal successors, (135), 111 states have internal predecessors, (135), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:46:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 147 transitions. [2023-11-29 00:46:14,555 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 147 transitions. Word has length 21 [2023-11-29 00:46:14,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:14,555 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 147 transitions. [2023-11-29 00:46:14,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:46:14,556 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 147 transitions. [2023-11-29 00:46:14,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 00:46:14,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:14,556 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:14,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 00:46:14,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 00:46:14,761 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:14,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:14,762 INFO L85 PathProgramCache]: Analyzing trace with hash 185319937, now seen corresponding path program 1 times [2023-11-29 00:46:14,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:14,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690093938] [2023-11-29 00:46:14,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:14,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:14,771 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:14,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [132241431] [2023-11-29 00:46:14,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:14,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:14,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:14,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:14,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 00:46:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:14,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:46:14,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:15,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:46:15,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:46:15,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:15,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690093938] [2023-11-29 00:46:15,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:15,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132241431] [2023-11-29 00:46:15,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132241431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:15,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:15,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:46:15,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671110513] [2023-11-29 00:46:15,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:15,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:46:15,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:15,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:46:15,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:46:15,067 INFO L87 Difference]: Start difference. First operand 120 states and 147 transitions. Second operand has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:46:15,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:15,225 INFO L93 Difference]: Finished difference Result 121 states and 147 transitions. [2023-11-29 00:46:15,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:46:15,226 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-29 00:46:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:15,227 INFO L225 Difference]: With dead ends: 121 [2023-11-29 00:46:15,227 INFO L226 Difference]: Without dead ends: 120 [2023-11-29 00:46:15,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:46:15,229 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 142 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:15,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 102 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:15,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-11-29 00:46:15,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-11-29 00:46:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 94 states have (on average 1.425531914893617) internal successors, (134), 111 states have internal predecessors, (134), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:46:15,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2023-11-29 00:46:15,242 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 22 [2023-11-29 00:46:15,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:15,242 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2023-11-29 00:46:15,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:46:15,243 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2023-11-29 00:46:15,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 00:46:15,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:15,244 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:15,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 00:46:15,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:15,450 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:15,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:15,450 INFO L85 PathProgramCache]: Analyzing trace with hash -294711385, now seen corresponding path program 1 times [2023-11-29 00:46:15,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:15,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899152390] [2023-11-29 00:46:15,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:15,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:15,460 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:15,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [893076715] [2023-11-29 00:46:15,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:15,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:15,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:15,462 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:15,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 00:46:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:15,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:46:15,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:15,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:15,548 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:46:15,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:15,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899152390] [2023-11-29 00:46:15,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:15,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893076715] [2023-11-29 00:46:15,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893076715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:15,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:15,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:46:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567877801] [2023-11-29 00:46:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:15,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:46:15,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:15,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:46:15,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:46:15,550 INFO L87 Difference]: Start difference. First operand 120 states and 146 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:15,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:15,581 INFO L93 Difference]: Finished difference Result 120 states and 146 transitions. [2023-11-29 00:46:15,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:46:15,582 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-29 00:46:15,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:15,583 INFO L225 Difference]: With dead ends: 120 [2023-11-29 00:46:15,583 INFO L226 Difference]: Without dead ends: 118 [2023-11-29 00:46:15,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 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 00:46:15,584 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 70 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:15,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 64 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:46:15,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-29 00:46:15,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-29 00:46:15,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 109 states have internal predecessors, (131), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:46:15,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 143 transitions. [2023-11-29 00:46:15,594 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 143 transitions. Word has length 35 [2023-11-29 00:46:15,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:15,595 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 143 transitions. [2023-11-29 00:46:15,595 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:15,595 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 143 transitions. [2023-11-29 00:46:15,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-29 00:46:15,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:15,596 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:15,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 00:46:15,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:15,802 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:15,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:15,802 INFO L85 PathProgramCache]: Analyzing trace with hash 250201833, now seen corresponding path program 1 times [2023-11-29 00:46:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:15,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769568544] [2023-11-29 00:46:15,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:15,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:15,811 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:15,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [813015515] [2023-11-29 00:46:15,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:15,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:15,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:15,813 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:15,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 00:46:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:15,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:46:15,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:15,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:15,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:46:15,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:15,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769568544] [2023-11-29 00:46:15,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:15,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813015515] [2023-11-29 00:46:15,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813015515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:15,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:15,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:46:15,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301182055] [2023-11-29 00:46:15,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:15,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:46:15,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:15,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:46:15,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:46:15,923 INFO L87 Difference]: Start difference. First operand 118 states and 143 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:15,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:15,968 INFO L93 Difference]: Finished difference Result 118 states and 143 transitions. [2023-11-29 00:46:15,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:46:15,968 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-11-29 00:46:15,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:15,969 INFO L225 Difference]: With dead ends: 118 [2023-11-29 00:46:15,969 INFO L226 Difference]: Without dead ends: 117 [2023-11-29 00:46:15,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:46:15,970 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 34 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:15,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 104 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:46:15,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-29 00:46:15,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-11-29 00:46:15,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 94 states have (on average 1.3617021276595744) internal successors, (128), 108 states have internal predecessors, (128), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:46:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 140 transitions. [2023-11-29 00:46:15,980 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 140 transitions. Word has length 37 [2023-11-29 00:46:15,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:15,980 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 140 transitions. [2023-11-29 00:46:15,980 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:15,980 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 140 transitions. [2023-11-29 00:46:15,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 00:46:15,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:15,981 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:15,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 00:46:16,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:16,187 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:16,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:16,188 INFO L85 PathProgramCache]: Analyzing trace with hash -833677725, now seen corresponding path program 1 times [2023-11-29 00:46:16,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:16,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773874442] [2023-11-29 00:46:16,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:16,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:16,196 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:16,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873164457] [2023-11-29 00:46:16,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:16,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:16,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:16,198 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:16,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 00:46:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:16,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:46:16,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:16,302 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:16,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:16,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:16,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773874442] [2023-11-29 00:46:16,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:16,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873164457] [2023-11-29 00:46:16,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873164457] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:16,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:16,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 00:46:16,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795844647] [2023-11-29 00:46:16,383 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:16,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:46:16,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:16,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:46:16,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:46:16,385 INFO L87 Difference]: Start difference. First operand 117 states and 140 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 00:46:16,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:16,503 INFO L93 Difference]: Finished difference Result 293 states and 346 transitions. [2023-11-29 00:46:16,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:46:16,503 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 38 [2023-11-29 00:46:16,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:16,506 INFO L225 Difference]: With dead ends: 293 [2023-11-29 00:46:16,506 INFO L226 Difference]: Without dead ends: 283 [2023-11-29 00:46:16,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:46:16,507 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 98 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:16,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 346 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:46:16,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-29 00:46:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 245. [2023-11-29 00:46:16,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 214 states have (on average 1.3691588785046729) internal successors, (293), 228 states have internal predecessors, (293), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 00:46:16,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 315 transitions. [2023-11-29 00:46:16,528 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 315 transitions. Word has length 38 [2023-11-29 00:46:16,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:16,529 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 315 transitions. [2023-11-29 00:46:16,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 00:46:16,529 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 315 transitions. [2023-11-29 00:46:16,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 00:46:16,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:16,530 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:16,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 00:46:16,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:16,733 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:16,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:16,733 INFO L85 PathProgramCache]: Analyzing trace with hash -260192497, now seen corresponding path program 1 times [2023-11-29 00:46:16,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:16,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871371340] [2023-11-29 00:46:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:16,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:16,743 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:16,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157216779] [2023-11-29 00:46:16,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:16,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:16,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:16,744 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:16,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 00:46:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:16,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:46:16,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:16,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:17,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:17,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871371340] [2023-11-29 00:46:17,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:17,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157216779] [2023-11-29 00:46:17,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157216779] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:46:17,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:46:17,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 00:46:17,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846964885] [2023-11-29 00:46:17,096 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:17,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:46:17,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:17,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:46:17,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:46:17,097 INFO L87 Difference]: Start difference. First operand 245 states and 315 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:17,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:17,204 INFO L93 Difference]: Finished difference Result 255 states and 317 transitions. [2023-11-29 00:46:17,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:46:17,213 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-11-29 00:46:17,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:17,216 INFO L225 Difference]: With dead ends: 255 [2023-11-29 00:46:17,216 INFO L226 Difference]: Without dead ends: 252 [2023-11-29 00:46:17,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:46:17,217 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 61 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:17,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 89 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:17,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-29 00:46:17,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 242. [2023-11-29 00:46:17,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 214 states have (on average 1.3364485981308412) internal successors, (286), 225 states have internal predecessors, (286), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 00:46:17,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 308 transitions. [2023-11-29 00:46:17,231 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 308 transitions. Word has length 40 [2023-11-29 00:46:17,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:17,231 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 308 transitions. [2023-11-29 00:46:17,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:17,232 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 308 transitions. [2023-11-29 00:46:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 00:46:17,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:17,233 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:17,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 00:46:17,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 00:46:17,433 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:17,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:17,434 INFO L85 PathProgramCache]: Analyzing trace with hash 523967238, now seen corresponding path program 1 times [2023-11-29 00:46:17,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:17,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130122103] [2023-11-29 00:46:17,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:17,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:17,440 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:17,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849319406] [2023-11-29 00:46:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:17,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:17,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:17,441 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:17,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 00:46:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:17,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:46:17,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:17,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:17,635 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:17,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:17,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130122103] [2023-11-29 00:46:17,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:17,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849319406] [2023-11-29 00:46:17,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849319406] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:46:17,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:46:17,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 00:46:17,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008239989] [2023-11-29 00:46:17,765 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:17,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:46:17,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:17,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:46:17,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:46:17,766 INFO L87 Difference]: Start difference. First operand 242 states and 308 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:17,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:17,892 INFO L93 Difference]: Finished difference Result 341 states and 419 transitions. [2023-11-29 00:46:17,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:46:17,892 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2023-11-29 00:46:17,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:17,894 INFO L225 Difference]: With dead ends: 341 [2023-11-29 00:46:17,895 INFO L226 Difference]: Without dead ends: 336 [2023-11-29 00:46:17,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:46:17,896 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 133 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:17,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 109 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2023-11-29 00:46:17,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 313. [2023-11-29 00:46:17,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 282 states have (on average 1.3191489361702127) internal successors, (372), 293 states have internal predecessors, (372), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:46:17,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 400 transitions. [2023-11-29 00:46:17,930 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 400 transitions. Word has length 41 [2023-11-29 00:46:17,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:17,931 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 400 transitions. [2023-11-29 00:46:17,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:17,931 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 400 transitions. [2023-11-29 00:46:17,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 00:46:17,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:17,932 INFO L195 NwaCegarLoop]: trace histogram [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 00:46:17,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 00:46:18,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:18,137 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:18,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:18,138 INFO L85 PathProgramCache]: Analyzing trace with hash 23653362, now seen corresponding path program 1 times [2023-11-29 00:46:18,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:18,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498604155] [2023-11-29 00:46:18,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:18,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:18,145 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:18,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224256840] [2023-11-29 00:46:18,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:18,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:18,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:18,147 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:18,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 00:46:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:18,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 00:46:18,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:46:18,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:18,438 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:46:18,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:18,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498604155] [2023-11-29 00:46:18,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:18,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224256840] [2023-11-29 00:46:18,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224256840] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:18,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:18,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2023-11-29 00:46:18,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756262368] [2023-11-29 00:46:18,439 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:18,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:46:18,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:18,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:46:18,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:46:18,441 INFO L87 Difference]: Start difference. First operand 313 states and 400 transitions. Second operand has 11 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:46:18,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:18,711 INFO L93 Difference]: Finished difference Result 322 states and 407 transitions. [2023-11-29 00:46:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:46:18,712 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2023-11-29 00:46:18,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:18,714 INFO L225 Difference]: With dead ends: 322 [2023-11-29 00:46:18,714 INFO L226 Difference]: Without dead ends: 316 [2023-11-29 00:46:18,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 72 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:46:18,715 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 139 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:18,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 160 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:46:18,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-29 00:46:18,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 313. [2023-11-29 00:46:18,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 282 states have (on average 1.297872340425532) internal successors, (366), 293 states have internal predecessors, (366), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:46:18,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 394 transitions. [2023-11-29 00:46:18,738 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 394 transitions. Word has length 43 [2023-11-29 00:46:18,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:18,738 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 394 transitions. [2023-11-29 00:46:18,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:46:18,738 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 394 transitions. [2023-11-29 00:46:18,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 00:46:18,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:18,739 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:18,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 00:46:18,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:18,941 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:18,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:18,941 INFO L85 PathProgramCache]: Analyzing trace with hash 733254281, now seen corresponding path program 1 times [2023-11-29 00:46:18,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:18,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140845427] [2023-11-29 00:46:18,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:18,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:18,947 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:18,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028312733] [2023-11-29 00:46:18,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:18,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:18,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:18,949 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:18,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 00:46:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:18,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:46:18,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:19,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:46:19,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:19,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140845427] [2023-11-29 00:46:19,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:19,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028312733] [2023-11-29 00:46:19,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028312733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:19,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:19,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:46:19,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009605927] [2023-11-29 00:46:19,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:19,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:46:19,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:19,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:46:19,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:46:19,028 INFO L87 Difference]: Start difference. First operand 313 states and 394 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:19,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:19,105 INFO L93 Difference]: Finished difference Result 319 states and 396 transitions. [2023-11-29 00:46:19,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:46:19,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2023-11-29 00:46:19,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:19,108 INFO L225 Difference]: With dead ends: 319 [2023-11-29 00:46:19,108 INFO L226 Difference]: Without dead ends: 318 [2023-11-29 00:46:19,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:46:19,109 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 18 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:19,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 57 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:19,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2023-11-29 00:46:19,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2023-11-29 00:46:19,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 282 states have (on average 1.2765957446808511) internal successors, (360), 293 states have internal predecessors, (360), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:46:19,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 388 transitions. [2023-11-29 00:46:19,130 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 388 transitions. Word has length 44 [2023-11-29 00:46:19,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:19,131 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 388 transitions. [2023-11-29 00:46:19,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:19,131 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 388 transitions. [2023-11-29 00:46:19,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 00:46:19,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:19,132 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:19,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 00:46:19,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:19,333 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:19,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:19,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1596888275, now seen corresponding path program 1 times [2023-11-29 00:46:19,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:19,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389107140] [2023-11-29 00:46:19,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:19,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:19,341 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:19,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850204800] [2023-11-29 00:46:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:19,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:19,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:19,342 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:19,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 00:46:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:19,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:46:19,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:19,527 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:46:19,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:19,748 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 00:46:19,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:19,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389107140] [2023-11-29 00:46:19,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:19,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850204800] [2023-11-29 00:46:19,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850204800] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:19,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:19,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2023-11-29 00:46:19,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286929198] [2023-11-29 00:46:19,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:19,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:46:19,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:19,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:46:19,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:46:19,766 INFO L87 Difference]: Start difference. First operand 313 states and 388 transitions. Second operand has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:46:19,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:19,956 INFO L93 Difference]: Finished difference Result 315 states and 389 transitions. [2023-11-29 00:46:19,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:46:19,956 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2023-11-29 00:46:19,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:19,958 INFO L225 Difference]: With dead ends: 315 [2023-11-29 00:46:19,959 INFO L226 Difference]: Without dead ends: 312 [2023-11-29 00:46:19,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 71 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:46:19,960 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 141 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:19,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 106 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:19,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-29 00:46:19,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 310. [2023-11-29 00:46:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 282 states have (on average 1.2092198581560283) internal successors, (341), 290 states have internal predecessors, (341), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:46:19,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 369 transitions. [2023-11-29 00:46:19,982 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 369 transitions. Word has length 44 [2023-11-29 00:46:19,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:19,983 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 369 transitions. [2023-11-29 00:46:19,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:46:19,983 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 369 transitions. [2023-11-29 00:46:19,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 00:46:19,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:19,984 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:19,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 00:46:20,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:20,184 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:20,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:20,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1256046292, now seen corresponding path program 1 times [2023-11-29 00:46:20,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:20,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487756428] [2023-11-29 00:46:20,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:20,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:20,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:20,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474109314] [2023-11-29 00:46:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:20,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:20,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:20,193 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:20,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 00:46:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:20,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:46:20,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:20,283 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:20,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:46:20,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:20,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487756428] [2023-11-29 00:46:20,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:20,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474109314] [2023-11-29 00:46:20,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474109314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:20,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:20,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:46:20,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560697570] [2023-11-29 00:46:20,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:20,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:46:20,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:20,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:46:20,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:46:20,285 INFO L87 Difference]: Start difference. First operand 310 states and 369 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:20,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:20,341 INFO L93 Difference]: Finished difference Result 316 states and 371 transitions. [2023-11-29 00:46:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:46:20,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2023-11-29 00:46:20,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:20,344 INFO L225 Difference]: With dead ends: 316 [2023-11-29 00:46:20,344 INFO L226 Difference]: Without dead ends: 315 [2023-11-29 00:46:20,345 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 00:46:20,345 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 30 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:20,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 51 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:46:20,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-29 00:46:20,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 310. [2023-11-29 00:46:20,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 282 states have (on average 1.1879432624113475) internal successors, (335), 290 states have internal predecessors, (335), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:46:20,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 363 transitions. [2023-11-29 00:46:20,368 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 363 transitions. Word has length 45 [2023-11-29 00:46:20,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:20,368 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 363 transitions. [2023-11-29 00:46:20,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:20,369 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 363 transitions. [2023-11-29 00:46:20,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 00:46:20,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:20,369 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:20,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 00:46:20,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:20,570 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:20,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:20,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2036070966, now seen corresponding path program 1 times [2023-11-29 00:46:20,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:20,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498432158] [2023-11-29 00:46:20,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:20,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:20,575 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:20,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633508415] [2023-11-29 00:46:20,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:20,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:20,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:20,577 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:20,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 00:46:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:20,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:46:20,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:20,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:20,893 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:20,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:20,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498432158] [2023-11-29 00:46:20,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:20,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633508415] [2023-11-29 00:46:20,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633508415] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:20,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:20,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 00:46:20,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164911786] [2023-11-29 00:46:20,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:20,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:46:20,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:20,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:46:20,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:46:20,896 INFO L87 Difference]: Start difference. First operand 310 states and 363 transitions. Second operand has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:46:21,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:21,382 INFO L93 Difference]: Finished difference Result 343 states and 398 transitions. [2023-11-29 00:46:21,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:46:21,383 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2023-11-29 00:46:21,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:21,385 INFO L225 Difference]: With dead ends: 343 [2023-11-29 00:46:21,385 INFO L226 Difference]: Without dead ends: 342 [2023-11-29 00:46:21,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:46:21,386 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 171 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:21,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 142 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:46:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-11-29 00:46:21,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 309. [2023-11-29 00:46:21,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 282 states have (on average 1.1702127659574468) internal successors, (330), 289 states have internal predecessors, (330), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 00:46:21,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 358 transitions. [2023-11-29 00:46:21,415 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 358 transitions. Word has length 45 [2023-11-29 00:46:21,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:21,415 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 358 transitions. [2023-11-29 00:46:21,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.5) internal successors, (65), 11 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:46:21,415 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 358 transitions. [2023-11-29 00:46:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 00:46:21,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:21,416 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:21,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 00:46:21,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:21,617 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:21,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:21,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1391995044, now seen corresponding path program 1 times [2023-11-29 00:46:21,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:21,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711156265] [2023-11-29 00:46:21,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:21,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:21,624 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:21,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73736064] [2023-11-29 00:46:21,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:21,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:21,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:21,626 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:21,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 00:46:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:21,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:46:21,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:46:21,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:21,757 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:46:21,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:21,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711156265] [2023-11-29 00:46:21,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:21,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73736064] [2023-11-29 00:46:21,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73736064] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:21,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:21,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 00:46:21,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023984553] [2023-11-29 00:46:21,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:21,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:46:21,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:21,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:46:21,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:46:21,759 INFO L87 Difference]: Start difference. First operand 309 states and 358 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:46:21,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:21,859 INFO L93 Difference]: Finished difference Result 495 states and 576 transitions. [2023-11-29 00:46:21,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:46:21,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2023-11-29 00:46:21,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:21,862 INFO L225 Difference]: With dead ends: 495 [2023-11-29 00:46:21,862 INFO L226 Difference]: Without dead ends: 493 [2023-11-29 00:46:21,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 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 00:46:21,863 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 77 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:21,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 132 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:21,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-11-29 00:46:21,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 432. [2023-11-29 00:46:21,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 399 states have (on average 1.1729323308270676) internal successors, (468), 405 states have internal predecessors, (468), 21 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 00:46:21,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 510 transitions. [2023-11-29 00:46:21,889 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 510 transitions. Word has length 53 [2023-11-29 00:46:21,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:21,890 INFO L495 AbstractCegarLoop]: Abstraction has 432 states and 510 transitions. [2023-11-29 00:46:21,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:46:21,890 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 510 transitions. [2023-11-29 00:46:21,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 00:46:21,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:21,891 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:21,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-29 00:46:22,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 00:46:22,091 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:22,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:22,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1171212027, now seen corresponding path program 1 times [2023-11-29 00:46:22,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:22,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45708695] [2023-11-29 00:46:22,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:22,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:22,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:22,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542926408] [2023-11-29 00:46:22,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:22,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:22,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:22,101 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:22,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 00:46:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:22,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:46:22,144 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:22,218 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:22,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:46:22,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:22,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45708695] [2023-11-29 00:46:22,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:22,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542926408] [2023-11-29 00:46:22,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542926408] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:22,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:22,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-29 00:46:22,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624542876] [2023-11-29 00:46:22,320 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:22,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:46:22,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:22,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:46:22,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:46:22,322 INFO L87 Difference]: Start difference. First operand 432 states and 510 transitions. Second operand has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 00:46:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:22,514 INFO L93 Difference]: Finished difference Result 764 states and 911 transitions. [2023-11-29 00:46:22,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:46:22,515 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 64 [2023-11-29 00:46:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:22,519 INFO L225 Difference]: With dead ends: 764 [2023-11-29 00:46:22,519 INFO L226 Difference]: Without dead ends: 753 [2023-11-29 00:46:22,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2023-11-29 00:46:22,521 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 124 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:22,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 301 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:22,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-11-29 00:46:22,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 736. [2023-11-29 00:46:22,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 688 states have (on average 1.1438953488372092) internal successors, (787), 694 states have internal predecessors, (787), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 00:46:22,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 855 transitions. [2023-11-29 00:46:22,578 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 855 transitions. Word has length 64 [2023-11-29 00:46:22,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:22,579 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 855 transitions. [2023-11-29 00:46:22,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.214285714285714) internal successors, (101), 14 states have internal predecessors, (101), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 00:46:22,579 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 855 transitions. [2023-11-29 00:46:22,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 00:46:22,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:22,580 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-29 00:46:22,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 00:46:22,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:22,781 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:22,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:22,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1171212445, now seen corresponding path program 2 times [2023-11-29 00:46:22,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:22,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072966182] [2023-11-29 00:46:22,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:22,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:22,786 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:22,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771357636] [2023-11-29 00:46:22,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:46:22,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:22,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:22,788 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:22,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 00:46:22,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:46:22,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:22,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:46:22,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 00:46:22,970 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:23,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:23,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072966182] [2023-11-29 00:46:23,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:23,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771357636] [2023-11-29 00:46:23,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771357636] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:46:23,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:46:23,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 00:46:23,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420121876] [2023-11-29 00:46:23,095 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:23,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:46:23,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:23,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:46:23,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:46:23,096 INFO L87 Difference]: Start difference. First operand 736 states and 855 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:46:23,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:23,266 INFO L93 Difference]: Finished difference Result 957 states and 1119 transitions. [2023-11-29 00:46:23,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:46:23,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 64 [2023-11-29 00:46:23,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:23,271 INFO L225 Difference]: With dead ends: 957 [2023-11-29 00:46:23,271 INFO L226 Difference]: Without dead ends: 952 [2023-11-29 00:46:23,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:46:23,272 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 41 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:23,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 194 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:23,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2023-11-29 00:46:23,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 660. [2023-11-29 00:46:23,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 615 states have (on average 1.1414634146341462) internal successors, (702), 621 states have internal predecessors, (702), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 00:46:23,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 764 transitions. [2023-11-29 00:46:23,313 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 764 transitions. Word has length 64 [2023-11-29 00:46:23,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:23,313 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 764 transitions. [2023-11-29 00:46:23,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 00:46:23,314 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 764 transitions. [2023-11-29 00:46:23,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 00:46:23,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:23,315 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:23,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 00:46:23,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:23,517 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:23,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash 35995903, now seen corresponding path program 2 times [2023-11-29 00:46:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:23,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897855571] [2023-11-29 00:46:23,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:23,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:23,525 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:23,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1810307710] [2023-11-29 00:46:23,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:46:23,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:23,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:23,526 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:23,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 00:46:23,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:46:23,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:23,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:46:23,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:46:23,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 00:46:23,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:23,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897855571] [2023-11-29 00:46:23,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:23,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810307710] [2023-11-29 00:46:23,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810307710] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:23,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:23,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2023-11-29 00:46:23,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432657533] [2023-11-29 00:46:23,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:23,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:46:23,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:23,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:46:23,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:46:23,862 INFO L87 Difference]: Start difference. First operand 660 states and 764 transitions. Second operand has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:46:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:24,259 INFO L93 Difference]: Finished difference Result 690 states and 793 transitions. [2023-11-29 00:46:24,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 00:46:24,259 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 66 [2023-11-29 00:46:24,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:24,262 INFO L225 Difference]: With dead ends: 690 [2023-11-29 00:46:24,262 INFO L226 Difference]: Without dead ends: 689 [2023-11-29 00:46:24,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:46:24,263 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 101 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:24,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 141 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:46:24,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2023-11-29 00:46:24,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 673. [2023-11-29 00:46:24,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 628 states have (on average 1.1321656050955413) internal successors, (711), 634 states have internal predecessors, (711), 31 states have call successors, (31), 7 states have call predecessors, (31), 7 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 00:46:24,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 773 transitions. [2023-11-29 00:46:24,300 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 773 transitions. Word has length 66 [2023-11-29 00:46:24,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:24,301 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 773 transitions. [2023-11-29 00:46:24,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.5) internal successors, (102), 13 states have internal predecessors, (102), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:46:24,301 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 773 transitions. [2023-11-29 00:46:24,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 00:46:24,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:24,302 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:24,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 00:46:24,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 00:46:24,503 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:24,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:24,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1907061328, now seen corresponding path program 1 times [2023-11-29 00:46:24,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:24,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015263763] [2023-11-29 00:46:24,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:24,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:24,511 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:24,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706676003] [2023-11-29 00:46:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:24,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:24,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:24,513 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:24,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 00:46:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:24,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:46:24,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 37 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:46:24,646 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:24,725 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 37 proven. 30 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 00:46:24,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:24,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015263763] [2023-11-29 00:46:24,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:24,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706676003] [2023-11-29 00:46:24,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706676003] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:24,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:24,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2023-11-29 00:46:24,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937553628] [2023-11-29 00:46:24,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:24,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:46:24,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:24,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:46:24,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:46:24,727 INFO L87 Difference]: Start difference. First operand 673 states and 773 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:46:24,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:24,879 INFO L93 Difference]: Finished difference Result 1125 states and 1305 transitions. [2023-11-29 00:46:24,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:46:24,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 87 [2023-11-29 00:46:24,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:24,883 INFO L225 Difference]: With dead ends: 1125 [2023-11-29 00:46:24,884 INFO L226 Difference]: Without dead ends: 919 [2023-11-29 00:46:24,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:46:24,886 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 87 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:24,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 196 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2023-11-29 00:46:24,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 736. [2023-11-29 00:46:24,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 688 states have (on average 1.125) internal successors, (774), 694 states have internal predecessors, (774), 34 states have call successors, (34), 7 states have call predecessors, (34), 7 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-29 00:46:24,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 842 transitions. [2023-11-29 00:46:24,955 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 842 transitions. Word has length 87 [2023-11-29 00:46:24,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:24,956 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 842 transitions. [2023-11-29 00:46:24,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 00:46:24,956 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 842 transitions. [2023-11-29 00:46:24,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 00:46:24,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:24,957 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:24,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 00:46:25,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:25,161 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:25,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:25,162 INFO L85 PathProgramCache]: Analyzing trace with hash -473710298, now seen corresponding path program 3 times [2023-11-29 00:46:25,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:25,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705517897] [2023-11-29 00:46:25,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:25,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:25,170 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:25,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502999782] [2023-11-29 00:46:25,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:46:25,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:25,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:25,171 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:25,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 00:46:25,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 00:46:25,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:25,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:46:25,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:25,268 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 50 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-29 00:46:25,268 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:26,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:26,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705517897] [2023-11-29 00:46:26,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:26,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502999782] [2023-11-29 00:46:26,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502999782] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:46:26,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:46:26,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 00:46:26,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890473134] [2023-11-29 00:46:26,425 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:26,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:46:26,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:46:26,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:46:26,426 INFO L87 Difference]: Start difference. First operand 736 states and 842 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:46:26,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:26,525 INFO L93 Difference]: Finished difference Result 1146 states and 1311 transitions. [2023-11-29 00:46:26,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:46:26,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 87 [2023-11-29 00:46:26,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:26,528 INFO L225 Difference]: With dead ends: 1146 [2023-11-29 00:46:26,528 INFO L226 Difference]: Without dead ends: 649 [2023-11-29 00:46:26,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:46:26,530 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:26,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 108 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:26,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-11-29 00:46:26,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 641. [2023-11-29 00:46:26,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 597 states have (on average 1.1139028475711892) internal successors, (665), 603 states have internal predecessors, (665), 30 states have call successors, (30), 7 states have call predecessors, (30), 7 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:46:26,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 725 transitions. [2023-11-29 00:46:26,581 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 725 transitions. Word has length 87 [2023-11-29 00:46:26,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:26,582 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 725 transitions. [2023-11-29 00:46:26,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:46:26,582 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 725 transitions. [2023-11-29 00:46:26,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 00:46:26,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:26,583 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:26,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 00:46:26,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 00:46:26,784 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:26,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:26,784 INFO L85 PathProgramCache]: Analyzing trace with hash 267410460, now seen corresponding path program 1 times [2023-11-29 00:46:26,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:26,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725158187] [2023-11-29 00:46:26,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:26,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:26,791 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:26,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1974468704] [2023-11-29 00:46:26,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:26,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:26,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:26,792 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:26,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 00:46:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:26,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 00:46:26,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 00:46:26,969 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 00:46:27,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:27,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725158187] [2023-11-29 00:46:27,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:27,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974468704] [2023-11-29 00:46:27,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974468704] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:27,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:27,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-29 00:46:27,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196193470] [2023-11-29 00:46:27,170 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:27,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 00:46:27,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:27,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 00:46:27,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:46:27,172 INFO L87 Difference]: Start difference. First operand 641 states and 725 transitions. Second operand has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 15 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:46:27,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:27,662 INFO L93 Difference]: Finished difference Result 849 states and 966 transitions. [2023-11-29 00:46:27,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 00:46:27,663 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 15 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 89 [2023-11-29 00:46:27,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:27,667 INFO L225 Difference]: With dead ends: 849 [2023-11-29 00:46:27,667 INFO L226 Difference]: Without dead ends: 843 [2023-11-29 00:46:27,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2023-11-29 00:46:27,668 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 193 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:27,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 172 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:46:27,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2023-11-29 00:46:27,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 799. [2023-11-29 00:46:27,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 748 states have (on average 1.1136363636363635) internal successors, (833), 754 states have internal predecessors, (833), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-29 00:46:27,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 907 transitions. [2023-11-29 00:46:27,710 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 907 transitions. Word has length 89 [2023-11-29 00:46:27,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:27,710 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 907 transitions. [2023-11-29 00:46:27,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.857142857142858) internal successors, (138), 15 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:46:27,710 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 907 transitions. [2023-11-29 00:46:27,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 00:46:27,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:27,711 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:27,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 00:46:27,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 00:46:27,913 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:27,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:27,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1669053778, now seen corresponding path program 1 times [2023-11-29 00:46:27,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:27,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052807213] [2023-11-29 00:46:27,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:27,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:27,920 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:27,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489039019] [2023-11-29 00:46:27,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:27,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:27,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:27,922 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:27,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 00:46:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:27,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:46:27,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:46:28,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:28,143 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 00:46:28,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:28,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052807213] [2023-11-29 00:46:28,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:28,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489039019] [2023-11-29 00:46:28,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489039019] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:28,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:28,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 00:46:28,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041635030] [2023-11-29 00:46:28,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:28,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:46:28,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:28,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:46:28,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:46:28,145 INFO L87 Difference]: Start difference. First operand 799 states and 907 transitions. Second operand has 10 states, 9 states have (on average 16.555555555555557) internal successors, (149), 10 states have internal predecessors, (149), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:46:28,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:28,683 INFO L93 Difference]: Finished difference Result 1502 states and 1777 transitions. [2023-11-29 00:46:28,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:46:28,683 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.555555555555557) internal successors, (149), 10 states have internal predecessors, (149), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 102 [2023-11-29 00:46:28,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:28,688 INFO L225 Difference]: With dead ends: 1502 [2023-11-29 00:46:28,689 INFO L226 Difference]: Without dead ends: 1501 [2023-11-29 00:46:28,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:46:28,689 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 169 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:28,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 247 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:46:28,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2023-11-29 00:46:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1415. [2023-11-29 00:46:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1331 states have (on average 1.1855747558226897) internal successors, (1578), 1337 states have internal predecessors, (1578), 70 states have call successors, (70), 7 states have call predecessors, (70), 7 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-11-29 00:46:28,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1718 transitions. [2023-11-29 00:46:28,803 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1718 transitions. Word has length 102 [2023-11-29 00:46:28,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:28,803 INFO L495 AbstractCegarLoop]: Abstraction has 1415 states and 1718 transitions. [2023-11-29 00:46:28,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.555555555555557) internal successors, (149), 10 states have internal predecessors, (149), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2023-11-29 00:46:28,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1718 transitions. [2023-11-29 00:46:28,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 00:46:28,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:28,805 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:28,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 00:46:29,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 00:46:29,006 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:29,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:29,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1822588265, now seen corresponding path program 2 times [2023-11-29 00:46:29,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:29,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503463777] [2023-11-29 00:46:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:29,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:29,014 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:29,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832382428] [2023-11-29 00:46:29,014 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:46:29,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:29,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:29,015 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:29,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 00:46:29,075 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:46:29,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:29,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:46:29,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:29,287 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-29 00:46:29,287 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:29,521 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 107 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-29 00:46:29,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:29,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503463777] [2023-11-29 00:46:29,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:29,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832382428] [2023-11-29 00:46:29,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832382428] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:29,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:29,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 00:46:29,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430889973] [2023-11-29 00:46:29,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:29,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:46:29,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:29,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:46:29,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:46:29,523 INFO L87 Difference]: Start difference. First operand 1415 states and 1718 transitions. Second operand has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:46:30,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:30,726 INFO L93 Difference]: Finished difference Result 1880 states and 2286 transitions. [2023-11-29 00:46:30,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:46:30,727 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 110 [2023-11-29 00:46:30,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:30,735 INFO L225 Difference]: With dead ends: 1880 [2023-11-29 00:46:30,735 INFO L226 Difference]: Without dead ends: 1856 [2023-11-29 00:46:30,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2023-11-29 00:46:30,737 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 377 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:30,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 411 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:46:30,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2023-11-29 00:46:30,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1785. [2023-11-29 00:46:30,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1682 states have (on average 1.1468489892984541) internal successors, (1929), 1688 states have internal predecessors, (1929), 89 states have call successors, (89), 7 states have call predecessors, (89), 7 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-11-29 00:46:30,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2107 transitions. [2023-11-29 00:46:30,880 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2107 transitions. Word has length 110 [2023-11-29 00:46:30,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:30,880 INFO L495 AbstractCegarLoop]: Abstraction has 1785 states and 2107 transitions. [2023-11-29 00:46:30,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 12 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:46:30,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2107 transitions. [2023-11-29 00:46:30,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 00:46:30,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:30,882 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:30,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 00:46:31,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 00:46:31,083 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:31,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:31,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1902664721, now seen corresponding path program 2 times [2023-11-29 00:46:31,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:31,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848573681] [2023-11-29 00:46:31,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:31,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:31,091 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:31,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496791192] [2023-11-29 00:46:31,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:46:31,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:31,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:31,092 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:31,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 00:46:31,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:46:31,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:31,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:46:31,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 00:46:31,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:31,372 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 00:46:31,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:31,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848573681] [2023-11-29 00:46:31,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:31,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496791192] [2023-11-29 00:46:31,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496791192] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:31,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:31,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 00:46:31,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127407890] [2023-11-29 00:46:31,373 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:31,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 00:46:31,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:31,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 00:46:31,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:46:31,375 INFO L87 Difference]: Start difference. First operand 1785 states and 2107 transitions. Second operand has 12 states, 11 states have (on average 16.272727272727273) internal successors, (179), 12 states have internal predecessors, (179), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 00:46:31,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:31,744 INFO L93 Difference]: Finished difference Result 3603 states and 4379 transitions. [2023-11-29 00:46:31,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:46:31,744 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.272727272727273) internal successors, (179), 12 states have internal predecessors, (179), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 122 [2023-11-29 00:46:31,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:31,757 INFO L225 Difference]: With dead ends: 3603 [2023-11-29 00:46:31,757 INFO L226 Difference]: Without dead ends: 3602 [2023-11-29 00:46:31,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:46:31,758 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 198 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:31,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 220 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:31,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3602 states. [2023-11-29 00:46:31,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3602 to 3317. [2023-11-29 00:46:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3317 states, 3132 states have (on average 1.1803959131545338) internal successors, (3697), 3138 states have internal predecessors, (3697), 171 states have call successors, (171), 7 states have call predecessors, (171), 7 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2023-11-29 00:46:31,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3317 states to 3317 states and 4039 transitions. [2023-11-29 00:46:31,997 INFO L78 Accepts]: Start accepts. Automaton has 3317 states and 4039 transitions. Word has length 122 [2023-11-29 00:46:31,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:31,997 INFO L495 AbstractCegarLoop]: Abstraction has 3317 states and 4039 transitions. [2023-11-29 00:46:31,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.272727272727273) internal successors, (179), 12 states have internal predecessors, (179), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 00:46:31,998 INFO L276 IsEmpty]: Start isEmpty. Operand 3317 states and 4039 transitions. [2023-11-29 00:46:32,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 00:46:32,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:32,001 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:32,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-29 00:46:32,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 00:46:32,201 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:32,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:32,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2035791862, now seen corresponding path program 2 times [2023-11-29 00:46:32,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:32,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033149194] [2023-11-29 00:46:32,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:32,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:32,209 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:32,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062416087] [2023-11-29 00:46:32,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:46:32,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:32,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:32,210 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:32,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 00:46:32,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:46:32,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:32,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 00:46:32,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:32,459 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:32,459 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 303 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 00:46:32,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:32,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033149194] [2023-11-29 00:46:32,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:32,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062416087] [2023-11-29 00:46:32,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062416087] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:32,733 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:32,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 29 [2023-11-29 00:46:32,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448044597] [2023-11-29 00:46:32,733 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:32,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 00:46:32,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:32,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 00:46:32,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2023-11-29 00:46:32,736 INFO L87 Difference]: Start difference. First operand 3317 states and 4039 transitions. Second operand has 30 states, 29 states have (on average 8.724137931034482) internal successors, (253), 30 states have internal predecessors, (253), 14 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2023-11-29 00:46:33,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:33,557 INFO L93 Difference]: Finished difference Result 7895 states and 9563 transitions. [2023-11-29 00:46:33,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 00:46:33,558 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 8.724137931034482) internal successors, (253), 30 states have internal predecessors, (253), 14 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) Word has length 153 [2023-11-29 00:46:33,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:33,590 INFO L225 Difference]: With dead ends: 7895 [2023-11-29 00:46:33,590 INFO L226 Difference]: Without dead ends: 7894 [2023-11-29 00:46:33,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1049, Invalid=2143, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 00:46:33,593 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 453 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:33,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 694 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:33,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7894 states. [2023-11-29 00:46:34,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7894 to 7826. [2023-11-29 00:46:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7826 states, 7423 states have (on average 1.139970362387175) internal successors, (8462), 7429 states have internal predecessors, (8462), 381 states have call successors, (381), 15 states have call predecessors, (381), 15 states have return successors, (381), 381 states have call predecessors, (381), 381 states have call successors, (381) [2023-11-29 00:46:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7826 states to 7826 states and 9224 transitions. [2023-11-29 00:46:34,304 INFO L78 Accepts]: Start accepts. Automaton has 7826 states and 9224 transitions. Word has length 153 [2023-11-29 00:46:34,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:34,304 INFO L495 AbstractCegarLoop]: Abstraction has 7826 states and 9224 transitions. [2023-11-29 00:46:34,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 8.724137931034482) internal successors, (253), 30 states have internal predecessors, (253), 14 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 14 states have call predecessors, (16), 14 states have call successors, (16) [2023-11-29 00:46:34,304 INFO L276 IsEmpty]: Start isEmpty. Operand 7826 states and 9224 transitions. [2023-11-29 00:46:34,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-29 00:46:34,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:34,309 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:34,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 00:46:34,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 00:46:34,509 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:34,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:34,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1757446394, now seen corresponding path program 1 times [2023-11-29 00:46:34,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:34,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323234889] [2023-11-29 00:46:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:34,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:34,518 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:34,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1556779716] [2023-11-29 00:46:34,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:34,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:34,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:34,519 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:34,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 00:46:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:34,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:46:34,595 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:34,785 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 206 proven. 181 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 00:46:34,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 206 proven. 181 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 00:46:34,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:34,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323234889] [2023-11-29 00:46:34,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:34,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556779716] [2023-11-29 00:46:34,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556779716] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:34,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:34,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 15 [2023-11-29 00:46:34,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310038262] [2023-11-29 00:46:34,954 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:34,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 00:46:34,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:34,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 00:46:34,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:46:34,956 INFO L87 Difference]: Start difference. First operand 7826 states and 9224 transitions. Second operand has 15 states, 15 states have (on average 14.266666666666667) internal successors, (214), 15 states have internal predecessors, (214), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-11-29 00:46:36,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:36,618 INFO L93 Difference]: Finished difference Result 14578 states and 17404 transitions. [2023-11-29 00:46:36,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 00:46:36,619 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 14.266666666666667) internal successors, (214), 15 states have internal predecessors, (214), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 179 [2023-11-29 00:46:36,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:36,651 INFO L225 Difference]: With dead ends: 14578 [2023-11-29 00:46:36,651 INFO L226 Difference]: Without dead ends: 10440 [2023-11-29 00:46:36,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 340 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2023-11-29 00:46:36,656 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 374 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:36,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 766 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 950 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 00:46:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10440 states. [2023-11-29 00:46:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10440 to 8187. [2023-11-29 00:46:37,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8187 states, 7762 states have (on average 1.1296057717083225) internal successors, (8768), 7768 states have internal predecessors, (8768), 403 states have call successors, (403), 15 states have call predecessors, (403), 15 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2023-11-29 00:46:37,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8187 states to 8187 states and 9574 transitions. [2023-11-29 00:46:37,211 INFO L78 Accepts]: Start accepts. Automaton has 8187 states and 9574 transitions. Word has length 179 [2023-11-29 00:46:37,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:37,211 INFO L495 AbstractCegarLoop]: Abstraction has 8187 states and 9574 transitions. [2023-11-29 00:46:37,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.266666666666667) internal successors, (214), 15 states have internal predecessors, (214), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-11-29 00:46:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 8187 states and 9574 transitions. [2023-11-29 00:46:37,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-29 00:46:37,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:37,215 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:37,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 00:46:37,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 00:46:37,416 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:37,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:37,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1220312272, now seen corresponding path program 1 times [2023-11-29 00:46:37,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:37,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021761571] [2023-11-29 00:46:37,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:37,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:37,428 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:37,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840291576] [2023-11-29 00:46:37,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:37,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:37,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:37,430 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:37,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 00:46:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:46:37,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 00:46:37,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:46:37,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:38,157 INFO L134 CoverageAnalysis]: Checked inductivity of 515 backedges. 0 proven. 427 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 00:46:38,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:38,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021761571] [2023-11-29 00:46:38,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:38,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840291576] [2023-11-29 00:46:38,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840291576] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:38,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:38,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 34 [2023-11-29 00:46:38,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565738772] [2023-11-29 00:46:38,158 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:38,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 00:46:38,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:38,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 00:46:38,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=817, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:46:38,161 INFO L87 Difference]: Start difference. First operand 8187 states and 9574 transitions. Second operand has 34 states, 34 states have (on average 8.764705882352942) internal successors, (298), 34 states have internal predecessors, (298), 16 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2023-11-29 00:46:39,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:39,265 INFO L93 Difference]: Finished difference Result 11080 states and 13126 transitions. [2023-11-29 00:46:39,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-11-29 00:46:39,266 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.764705882352942) internal successors, (298), 34 states have internal predecessors, (298), 16 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 181 [2023-11-29 00:46:39,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:39,280 INFO L225 Difference]: With dead ends: 11080 [2023-11-29 00:46:39,280 INFO L226 Difference]: Without dead ends: 11071 [2023-11-29 00:46:39,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1359, Invalid=2801, Unknown=0, NotChecked=0, Total=4160 [2023-11-29 00:46:39,283 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 398 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:39,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 535 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:39,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11071 states. [2023-11-29 00:46:39,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11071 to 11036. [2023-11-29 00:46:39,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11036 states, 10473 states have (on average 1.0981571660460232) internal successors, (11501), 10479 states have internal predecessors, (11501), 539 states have call successors, (539), 17 states have call predecessors, (539), 17 states have return successors, (539), 539 states have call predecessors, (539), 539 states have call successors, (539) [2023-11-29 00:46:39,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11036 states to 11036 states and 12579 transitions. [2023-11-29 00:46:39,948 INFO L78 Accepts]: Start accepts. Automaton has 11036 states and 12579 transitions. Word has length 181 [2023-11-29 00:46:39,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:39,948 INFO L495 AbstractCegarLoop]: Abstraction has 11036 states and 12579 transitions. [2023-11-29 00:46:39,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.764705882352942) internal successors, (298), 34 states have internal predecessors, (298), 16 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2023-11-29 00:46:39,949 INFO L276 IsEmpty]: Start isEmpty. Operand 11036 states and 12579 transitions. [2023-11-29 00:46:39,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-29 00:46:39,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:39,953 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:39,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 00:46:40,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:40,153 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:40,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:40,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1220712466, now seen corresponding path program 3 times [2023-11-29 00:46:40,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:40,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094612448] [2023-11-29 00:46:40,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:40,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:40,164 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:40,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328170217] [2023-11-29 00:46:40,164 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:46:40,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:40,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:40,165 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:40,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 00:46:40,222 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 00:46:40,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:40,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:46:40,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-29 00:46:41,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:46:41,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:41,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094612448] [2023-11-29 00:46:41,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:41,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328170217] [2023-11-29 00:46:41,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328170217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:46:41,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:46:41,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:46:41,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359910447] [2023-11-29 00:46:41,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:46:41,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:46:41,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:41,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:46:41,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:46:41,231 INFO L87 Difference]: Start difference. First operand 11036 states and 12579 transitions. Second operand has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:41,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:41,894 INFO L93 Difference]: Finished difference Result 11044 states and 12583 transitions. [2023-11-29 00:46:41,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:46:41,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 181 [2023-11-29 00:46:41,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:41,916 INFO L225 Difference]: With dead ends: 11044 [2023-11-29 00:46:41,916 INFO L226 Difference]: Without dead ends: 11038 [2023-11-29 00:46:41,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:46:41,920 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 104 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:41,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 116 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:46:41,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11038 states. [2023-11-29 00:46:42,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11038 to 11035. [2023-11-29 00:46:42,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11035 states, 10472 states have (on average 1.0972116119174942) internal successors, (11490), 10478 states have internal predecessors, (11490), 539 states have call successors, (539), 17 states have call predecessors, (539), 17 states have return successors, (539), 539 states have call predecessors, (539), 539 states have call successors, (539) [2023-11-29 00:46:42,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11035 states to 11035 states and 12568 transitions. [2023-11-29 00:46:42,583 INFO L78 Accepts]: Start accepts. Automaton has 11035 states and 12568 transitions. Word has length 181 [2023-11-29 00:46:42,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:42,584 INFO L495 AbstractCegarLoop]: Abstraction has 11035 states and 12568 transitions. [2023-11-29 00:46:42,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 states have internal predecessors, (43), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 00:46:42,584 INFO L276 IsEmpty]: Start isEmpty. Operand 11035 states and 12568 transitions. [2023-11-29 00:46:42,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-29 00:46:42,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:42,589 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:42,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 00:46:42,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:42,793 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:42,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:42,794 INFO L85 PathProgramCache]: Analyzing trace with hash 440755932, now seen corresponding path program 2 times [2023-11-29 00:46:42,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:42,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127892212] [2023-11-29 00:46:42,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:42,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:42,809 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:42,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [224985246] [2023-11-29 00:46:42,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:46:42,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:42,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:42,810 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:42,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 00:46:42,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:46:42,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:42,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 00:46:42,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:43,127 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 00:46:43,128 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:43,481 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-11-29 00:46:43,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:43,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127892212] [2023-11-29 00:46:43,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:43,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224985246] [2023-11-29 00:46:43,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224985246] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:43,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:43,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2023-11-29 00:46:43,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440830550] [2023-11-29 00:46:43,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:43,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 00:46:43,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:43,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 00:46:43,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:46:43,484 INFO L87 Difference]: Start difference. First operand 11035 states and 12568 transitions. Second operand has 23 states, 22 states have (on average 12.818181818181818) internal successors, (282), 23 states have internal predecessors, (282), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 00:46:45,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:45,049 INFO L93 Difference]: Finished difference Result 11051 states and 12568 transitions. [2023-11-29 00:46:45,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-11-29 00:46:45,050 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 12.818181818181818) internal successors, (282), 23 states have internal predecessors, (282), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 181 [2023-11-29 00:46:45,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:45,069 INFO L225 Difference]: With dead ends: 11051 [2023-11-29 00:46:45,069 INFO L226 Difference]: Without dead ends: 11050 [2023-11-29 00:46:45,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1051, Invalid=2371, Unknown=0, NotChecked=0, Total=3422 [2023-11-29 00:46:45,074 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 321 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:45,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 239 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:46:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11050 states. [2023-11-29 00:46:45,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11050 to 11035. [2023-11-29 00:46:45,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11035 states, 10472 states have (on average 1.0727654698242934) internal successors, (11234), 10478 states have internal predecessors, (11234), 539 states have call successors, (539), 17 states have call predecessors, (539), 17 states have return successors, (539), 539 states have call predecessors, (539), 539 states have call successors, (539) [2023-11-29 00:46:45,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11035 states to 11035 states and 12312 transitions. [2023-11-29 00:46:45,758 INFO L78 Accepts]: Start accepts. Automaton has 11035 states and 12312 transitions. Word has length 181 [2023-11-29 00:46:45,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:45,759 INFO L495 AbstractCegarLoop]: Abstraction has 11035 states and 12312 transitions. [2023-11-29 00:46:45,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 12.818181818181818) internal successors, (282), 23 states have internal predecessors, (282), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 00:46:45,759 INFO L276 IsEmpty]: Start isEmpty. Operand 11035 states and 12312 transitions. [2023-11-29 00:46:45,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 00:46:45,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:45,763 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:45,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 00:46:45,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:45,963 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:45,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:45,964 INFO L85 PathProgramCache]: Analyzing trace with hash -773358757, now seen corresponding path program 2 times [2023-11-29 00:46:45,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:45,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120392830] [2023-11-29 00:46:45,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:45,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:45,976 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:45,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757001349] [2023-11-29 00:46:45,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:46:45,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:45,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:45,977 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:45,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 00:46:46,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:46:46,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:46,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 00:46:46,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:46,223 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 00:46:46,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:46,449 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 00:46:46,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:46,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120392830] [2023-11-29 00:46:46,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:46,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757001349] [2023-11-29 00:46:46,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757001349] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:46,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:46,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-29 00:46:46,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572298603] [2023-11-29 00:46:46,450 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:46,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:46:46,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:46,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:46:46,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:46:46,452 INFO L87 Difference]: Start difference. First operand 11035 states and 12312 transitions. Second operand has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-29 00:46:48,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:48,312 INFO L93 Difference]: Finished difference Result 14510 states and 16502 transitions. [2023-11-29 00:46:48,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:46:48,313 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 217 [2023-11-29 00:46:48,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:48,331 INFO L225 Difference]: With dead ends: 14510 [2023-11-29 00:46:48,331 INFO L226 Difference]: Without dead ends: 14509 [2023-11-29 00:46:48,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:46:48,333 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 568 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:48,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 416 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 00:46:48,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14509 states. [2023-11-29 00:46:49,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14509 to 14307. [2023-11-29 00:46:49,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14307 states, 13571 states have (on average 1.100729496720949) internal successors, (14938), 13577 states have internal predecessors, (14938), 712 states have call successors, (712), 17 states have call predecessors, (712), 17 states have return successors, (712), 712 states have call predecessors, (712), 712 states have call successors, (712) [2023-11-29 00:46:49,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14307 states to 14307 states and 16362 transitions. [2023-11-29 00:46:49,230 INFO L78 Accepts]: Start accepts. Automaton has 14307 states and 16362 transitions. Word has length 217 [2023-11-29 00:46:49,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:49,231 INFO L495 AbstractCegarLoop]: Abstraction has 14307 states and 16362 transitions. [2023-11-29 00:46:49,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 19 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-29 00:46:49,231 INFO L276 IsEmpty]: Start isEmpty. Operand 14307 states and 16362 transitions. [2023-11-29 00:46:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-11-29 00:46:49,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:49,234 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:49,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 00:46:49,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 00:46:49,435 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:49,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:49,435 INFO L85 PathProgramCache]: Analyzing trace with hash 697380550, now seen corresponding path program 3 times [2023-11-29 00:46:49,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:49,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963450767] [2023-11-29 00:46:49,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:49,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:49,445 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:49,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [182054195] [2023-11-29 00:46:49,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:46:49,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:49,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:49,446 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:49,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 00:46:49,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-11-29 00:46:49,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:49,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:46:49,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 346 proven. 69 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2023-11-29 00:46:49,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:49,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:49,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963450767] [2023-11-29 00:46:49,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:49,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182054195] [2023-11-29 00:46:49,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182054195] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:46:49,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:46:49,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 00:46:49,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933409936] [2023-11-29 00:46:49,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:49,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:46:49,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:49,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:46:49,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:46:49,928 INFO L87 Difference]: Start difference. First operand 14307 states and 16362 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 00:46:50,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:50,930 INFO L93 Difference]: Finished difference Result 22625 states and 26236 transitions. [2023-11-29 00:46:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:46:50,930 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 225 [2023-11-29 00:46:50,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:50,943 INFO L225 Difference]: With dead ends: 22625 [2023-11-29 00:46:50,943 INFO L226 Difference]: Without dead ends: 14346 [2023-11-29 00:46:50,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:46:50,953 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 88 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:50,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 465 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:46:50,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14346 states. [2023-11-29 00:46:51,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14346 to 12826. [2023-11-29 00:46:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12826 states, 12160 states have (on average 1.107483552631579) internal successors, (13467), 12166 states have internal predecessors, (13467), 642 states have call successors, (642), 17 states have call predecessors, (642), 17 states have return successors, (642), 642 states have call predecessors, (642), 642 states have call successors, (642) [2023-11-29 00:46:51,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12826 states to 12826 states and 14751 transitions. [2023-11-29 00:46:51,696 INFO L78 Accepts]: Start accepts. Automaton has 12826 states and 14751 transitions. Word has length 225 [2023-11-29 00:46:51,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:51,696 INFO L495 AbstractCegarLoop]: Abstraction has 12826 states and 14751 transitions. [2023-11-29 00:46:51,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 00:46:51,697 INFO L276 IsEmpty]: Start isEmpty. Operand 12826 states and 14751 transitions. [2023-11-29 00:46:51,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-11-29 00:46:51,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:51,702 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:51,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 00:46:51,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 00:46:51,905 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:51,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:51,906 INFO L85 PathProgramCache]: Analyzing trace with hash 992403485, now seen corresponding path program 4 times [2023-11-29 00:46:51,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:51,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235303511] [2023-11-29 00:46:51,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:51,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:51,916 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:51,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520968970] [2023-11-29 00:46:51,916 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:46:51,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:51,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:51,918 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:51,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 00:46:52,012 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:46:52,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:52,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 00:46:52,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:52,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 216 proven. 683 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 00:46:52,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:52,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:52,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235303511] [2023-11-29 00:46:52,979 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:52,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520968970] [2023-11-29 00:46:52,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520968970] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:46:52,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:46:52,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 00:46:52,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012613987] [2023-11-29 00:46:52,979 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:52,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 00:46:52,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:52,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 00:46:52,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:46:52,981 INFO L87 Difference]: Start difference. First operand 12826 states and 14751 transitions. Second operand has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 00:46:54,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:54,705 INFO L93 Difference]: Finished difference Result 13404 states and 15379 transitions. [2023-11-29 00:46:54,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:46:54,706 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 248 [2023-11-29 00:46:54,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:54,716 INFO L225 Difference]: With dead ends: 13404 [2023-11-29 00:46:54,717 INFO L226 Difference]: Without dead ends: 13400 [2023-11-29 00:46:54,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=870, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 00:46:54,720 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 117 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:54,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 810 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:46:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13400 states. [2023-11-29 00:46:55,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13400 to 12816. [2023-11-29 00:46:55,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12816 states, 12150 states have (on average 1.1074897119341565) internal successors, (13456), 12156 states have internal predecessors, (13456), 642 states have call successors, (642), 17 states have call predecessors, (642), 17 states have return successors, (642), 642 states have call predecessors, (642), 642 states have call successors, (642) [2023-11-29 00:46:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12816 states to 12816 states and 14740 transitions. [2023-11-29 00:46:55,431 INFO L78 Accepts]: Start accepts. Automaton has 12816 states and 14740 transitions. Word has length 248 [2023-11-29 00:46:55,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:55,431 INFO L495 AbstractCegarLoop]: Abstraction has 12816 states and 14740 transitions. [2023-11-29 00:46:55,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.944444444444445) internal successors, (197), 19 states have internal predecessors, (197), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 00:46:55,431 INFO L276 IsEmpty]: Start isEmpty. Operand 12816 states and 14740 transitions. [2023-11-29 00:46:55,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-11-29 00:46:55,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:55,435 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:55,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 00:46:55,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:55,636 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:55,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:55,636 INFO L85 PathProgramCache]: Analyzing trace with hash -70390799, now seen corresponding path program 3 times [2023-11-29 00:46:55,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:55,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373181223] [2023-11-29 00:46:55,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:55,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:55,648 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:55,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1710138185] [2023-11-29 00:46:55,648 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:46:55,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:55,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:55,649 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:55,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 00:46:55,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-29 00:46:55,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:55,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:46:55,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:55,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 0 proven. 995 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 00:46:55,948 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:56,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 0 proven. 995 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 00:46:56,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:56,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373181223] [2023-11-29 00:46:56,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:56,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710138185] [2023-11-29 00:46:56,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710138185] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:56,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:56,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 00:46:56,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058888378] [2023-11-29 00:46:56,270 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:56,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 00:46:56,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:56,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 00:46:56,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:46:56,272 INFO L87 Difference]: Start difference. First operand 12816 states and 14740 transitions. Second operand has 24 states, 23 states have (on average 17.17391304347826) internal successors, (395), 24 states have internal predecessors, (395), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-29 00:46:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:46:57,493 INFO L93 Difference]: Finished difference Result 19104 states and 22612 transitions. [2023-11-29 00:46:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 00:46:57,494 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 17.17391304347826) internal successors, (395), 24 states have internal predecessors, (395), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) Word has length 260 [2023-11-29 00:46:57,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:46:57,516 INFO L225 Difference]: With dead ends: 19104 [2023-11-29 00:46:57,517 INFO L226 Difference]: Without dead ends: 19103 [2023-11-29 00:46:57,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 496 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-11-29 00:46:57,522 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 504 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:46:57,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 405 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:46:57,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19103 states. [2023-11-29 00:46:58,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19103 to 18091. [2023-11-29 00:46:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18091 states, 17146 states have (on average 1.1393911116295345) internal successors, (19536), 17152 states have internal predecessors, (19536), 921 states have call successors, (921), 17 states have call predecessors, (921), 17 states have return successors, (921), 921 states have call predecessors, (921), 921 states have call successors, (921) [2023-11-29 00:46:58,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18091 states to 18091 states and 21378 transitions. [2023-11-29 00:46:58,663 INFO L78 Accepts]: Start accepts. Automaton has 18091 states and 21378 transitions. Word has length 260 [2023-11-29 00:46:58,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:46:58,664 INFO L495 AbstractCegarLoop]: Abstraction has 18091 states and 21378 transitions. [2023-11-29 00:46:58,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 17.17391304347826) internal successors, (395), 24 states have internal predecessors, (395), 23 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-29 00:46:58,664 INFO L276 IsEmpty]: Start isEmpty. Operand 18091 states and 21378 transitions. [2023-11-29 00:46:58,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-11-29 00:46:58,668 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:46:58,668 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:46:58,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 00:46:58,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:58,869 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:46:58,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:46:58,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1073594460, now seen corresponding path program 5 times [2023-11-29 00:46:58,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:46:58,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850860471] [2023-11-29 00:46:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:46:58,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:46:58,881 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:46:58,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760048905] [2023-11-29 00:46:58,881 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 00:46:58,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:46:58,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:46:58,882 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:46:58,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 00:46:58,987 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2023-11-29 00:46:58,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:46:58,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:46:58,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:46:59,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 335 proven. 704 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 00:46:59,369 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:46:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 335 proven. 704 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 00:46:59,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:46:59,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850860471] [2023-11-29 00:46:59,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:46:59,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760048905] [2023-11-29 00:46:59,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760048905] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:46:59,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:46:59,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2023-11-29 00:46:59,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474432271] [2023-11-29 00:46:59,649 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:46:59,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:46:59,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:46:59,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:46:59,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:46:59,651 INFO L87 Difference]: Start difference. First operand 18091 states and 21378 transitions. Second operand has 20 states, 20 states have (on average 15.95) internal successors, (319), 20 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2023-11-29 00:47:02,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:47:02,018 INFO L93 Difference]: Finished difference Result 36897 states and 44642 transitions. [2023-11-29 00:47:02,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-11-29 00:47:02,019 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 15.95) internal successors, (319), 20 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 271 [2023-11-29 00:47:02,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:47:02,041 INFO L225 Difference]: With dead ends: 36897 [2023-11-29 00:47:02,041 INFO L226 Difference]: Without dead ends: 23630 [2023-11-29 00:47:02,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 516 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=474, Invalid=1418, Unknown=0, NotChecked=0, Total=1892 [2023-11-29 00:47:02,059 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 517 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:47:02,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 737 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:47:02,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23630 states. [2023-11-29 00:47:02,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23630 to 15659. [2023-11-29 00:47:02,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15659 states, 14825 states have (on average 1.1540640809443508) internal successors, (17109), 14831 states have internal predecessors, (17109), 810 states have call successors, (810), 17 states have call predecessors, (810), 17 states have return successors, (810), 810 states have call predecessors, (810), 810 states have call successors, (810) [2023-11-29 00:47:02,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15659 states to 15659 states and 18729 transitions. [2023-11-29 00:47:02,993 INFO L78 Accepts]: Start accepts. Automaton has 15659 states and 18729 transitions. Word has length 271 [2023-11-29 00:47:02,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:47:02,994 INFO L495 AbstractCegarLoop]: Abstraction has 15659 states and 18729 transitions. [2023-11-29 00:47:02,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.95) internal successors, (319), 20 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2023-11-29 00:47:02,994 INFO L276 IsEmpty]: Start isEmpty. Operand 15659 states and 18729 transitions. [2023-11-29 00:47:02,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-29 00:47:02,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:47:02,998 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:47:03,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 00:47:03,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 00:47:03,199 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:47:03,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:47:03,199 INFO L85 PathProgramCache]: Analyzing trace with hash 870882025, now seen corresponding path program 6 times [2023-11-29 00:47:03,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:47:03,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383838084] [2023-11-29 00:47:03,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:47:03,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:47:03,209 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:47:03,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956023409] [2023-11-29 00:47:03,209 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 00:47:03,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:03,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:47:03,210 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:47:03,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 00:47:03,345 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2023-11-29 00:47:03,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:47:03,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 00:47:03,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:47:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 981 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2023-11-29 00:47:03,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:47:04,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:47:04,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383838084] [2023-11-29 00:47:04,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:47:04,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956023409] [2023-11-29 00:47:04,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956023409] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:47:04,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:47:04,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 00:47:04,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549178345] [2023-11-29 00:47:04,037 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:47:04,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:47:04,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:47:04,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:47:04,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:47:04,038 INFO L87 Difference]: Start difference. First operand 15659 states and 18729 transitions. Second operand has 11 states, 10 states have (on average 14.5) internal successors, (145), 11 states have internal predecessors, (145), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 00:47:05,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:47:05,437 INFO L93 Difference]: Finished difference Result 16809 states and 20129 transitions. [2023-11-29 00:47:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:47:05,437 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.5) internal successors, (145), 11 states have internal predecessors, (145), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 294 [2023-11-29 00:47:05,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:47:05,452 INFO L225 Difference]: With dead ends: 16809 [2023-11-29 00:47:05,453 INFO L226 Difference]: Without dead ends: 16805 [2023-11-29 00:47:05,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:47:05,457 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 45 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:47:05,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 722 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1103 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:47:05,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16805 states. [2023-11-29 00:47:06,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16805 to 15953. [2023-11-29 00:47:06,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15953 states, 15105 states have (on average 1.1547831843760343) internal successors, (17443), 15111 states have internal predecessors, (17443), 824 states have call successors, (824), 17 states have call predecessors, (824), 17 states have return successors, (824), 824 states have call predecessors, (824), 824 states have call successors, (824) [2023-11-29 00:47:06,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15953 states to 15953 states and 19091 transitions. [2023-11-29 00:47:06,349 INFO L78 Accepts]: Start accepts. Automaton has 15953 states and 19091 transitions. Word has length 294 [2023-11-29 00:47:06,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:47:06,349 INFO L495 AbstractCegarLoop]: Abstraction has 15953 states and 19091 transitions. [2023-11-29 00:47:06,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.5) internal successors, (145), 11 states have internal predecessors, (145), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 00:47:06,349 INFO L276 IsEmpty]: Start isEmpty. Operand 15953 states and 19091 transitions. [2023-11-29 00:47:06,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-29 00:47:06,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:47:06,353 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:47:06,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-11-29 00:47:06,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:06,554 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:47:06,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:47:06,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1771351713, now seen corresponding path program 7 times [2023-11-29 00:47:06,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:47:06,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880668564] [2023-11-29 00:47:06,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:47:06,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:47:06,564 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:47:06,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551895365] [2023-11-29 00:47:06,564 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 00:47:06,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:06,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:47:06,565 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:47:06,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 00:47:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:47:06,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 00:47:06,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:47:07,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 0 proven. 1014 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2023-11-29 00:47:07,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:47:07,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:47:07,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880668564] [2023-11-29 00:47:07,324 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:47:07,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551895365] [2023-11-29 00:47:07,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551895365] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:47:07,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:47:07,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 00:47:07,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360811070] [2023-11-29 00:47:07,325 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:47:07,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:47:07,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:47:07,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:47:07,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:47:07,326 INFO L87 Difference]: Start difference. First operand 15953 states and 19091 transitions. Second operand has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:47:08,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:47:08,895 INFO L93 Difference]: Finished difference Result 17060 states and 20382 transitions. [2023-11-29 00:47:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:47:08,895 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 294 [2023-11-29 00:47:08,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:47:08,913 INFO L225 Difference]: With dead ends: 17060 [2023-11-29 00:47:08,913 INFO L226 Difference]: Without dead ends: 17059 [2023-11-29 00:47:08,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:47:08,918 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 51 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:47:08,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 428 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:47:08,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17059 states. [2023-11-29 00:47:09,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17059 to 15953. [2023-11-29 00:47:09,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15953 states, 15105 states have (on average 1.1547169811320754) internal successors, (17442), 15111 states have internal predecessors, (17442), 824 states have call successors, (824), 17 states have call predecessors, (824), 17 states have return successors, (824), 824 states have call predecessors, (824), 824 states have call successors, (824) [2023-11-29 00:47:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15953 states to 15953 states and 19090 transitions. [2023-11-29 00:47:09,842 INFO L78 Accepts]: Start accepts. Automaton has 15953 states and 19090 transitions. Word has length 294 [2023-11-29 00:47:09,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:47:09,842 INFO L495 AbstractCegarLoop]: Abstraction has 15953 states and 19090 transitions. [2023-11-29 00:47:09,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-29 00:47:09,842 INFO L276 IsEmpty]: Start isEmpty. Operand 15953 states and 19090 transitions. [2023-11-29 00:47:09,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2023-11-29 00:47:09,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:47:09,846 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:47:09,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-29 00:47:10,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:10,047 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:47:10,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:47:10,047 INFO L85 PathProgramCache]: Analyzing trace with hash -451095359, now seen corresponding path program 8 times [2023-11-29 00:47:10,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:47:10,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222858235] [2023-11-29 00:47:10,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:47:10,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:47:10,063 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:47:10,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374370225] [2023-11-29 00:47:10,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:47:10,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:10,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:47:10,064 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:47:10,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 00:47:10,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:47:10,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:47:10,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 00:47:10,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:47:10,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1450 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-11-29 00:47:10,696 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:47:10,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:47:10,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222858235] [2023-11-29 00:47:10,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:47:10,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374370225] [2023-11-29 00:47:10,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374370225] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:47:10,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:47:10,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 00:47:10,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652259565] [2023-11-29 00:47:10,799 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:47:10,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:47:10,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:47:10,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:47:10,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:47:10,801 INFO L87 Difference]: Start difference. First operand 15953 states and 19090 transitions. Second operand has 11 states, 10 states have (on average 16.5) internal successors, (165), 11 states have internal predecessors, (165), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 00:47:12,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:47:12,148 INFO L93 Difference]: Finished difference Result 17872 states and 21348 transitions. [2023-11-29 00:47:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:47:12,149 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.5) internal successors, (165), 11 states have internal predecessors, (165), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 294 [2023-11-29 00:47:12,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:47:12,162 INFO L225 Difference]: With dead ends: 17872 [2023-11-29 00:47:12,163 INFO L226 Difference]: Without dead ends: 17871 [2023-11-29 00:47:12,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:47:12,165 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 82 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:47:12,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 307 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:47:12,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17871 states. [2023-11-29 00:47:13,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17871 to 15953. [2023-11-29 00:47:13,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15953 states, 15105 states have (on average 1.1546507778881165) internal successors, (17441), 15111 states have internal predecessors, (17441), 824 states have call successors, (824), 17 states have call predecessors, (824), 17 states have return successors, (824), 824 states have call predecessors, (824), 824 states have call successors, (824) [2023-11-29 00:47:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15953 states to 15953 states and 19089 transitions. [2023-11-29 00:47:13,037 INFO L78 Accepts]: Start accepts. Automaton has 15953 states and 19089 transitions. Word has length 294 [2023-11-29 00:47:13,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:47:13,037 INFO L495 AbstractCegarLoop]: Abstraction has 15953 states and 19089 transitions. [2023-11-29 00:47:13,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.5) internal successors, (165), 11 states have internal predecessors, (165), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-11-29 00:47:13,038 INFO L276 IsEmpty]: Start isEmpty. Operand 15953 states and 19089 transitions. [2023-11-29 00:47:13,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-11-29 00:47:13,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:47:13,042 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:47:13,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 00:47:13,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 00:47:13,243 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:47:13,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:47:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1723584068, now seen corresponding path program 9 times [2023-11-29 00:47:13,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:47:13,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388121653] [2023-11-29 00:47:13,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:47:13,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:47:13,255 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:47:13,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1212049192] [2023-11-29 00:47:13,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:47:13,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:13,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:47:13,257 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:47:13,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 00:47:13,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-29 00:47:13,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:47:13,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-29 00:47:13,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:47:14,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 39 proven. 1097 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2023-11-29 00:47:14,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:47:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 0 proven. 1097 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2023-11-29 00:47:15,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:47:15,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388121653] [2023-11-29 00:47:15,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:47:15,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212049192] [2023-11-29 00:47:15,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212049192] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:47:15,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:47:15,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 24 [2023-11-29 00:47:15,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511755764] [2023-11-29 00:47:15,359 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:47:15,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 00:47:15,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:47:15,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 00:47:15,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2023-11-29 00:47:15,361 INFO L87 Difference]: Start difference. First operand 15953 states and 19089 transitions. Second operand has 25 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 15 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 16 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-29 00:47:19,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:47:19,829 INFO L93 Difference]: Finished difference Result 18455 states and 22016 transitions. [2023-11-29 00:47:19,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-29 00:47:19,830 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 15 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 16 states have call predecessors, (17), 15 states have call successors, (17) Word has length 317 [2023-11-29 00:47:19,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:47:19,845 INFO L225 Difference]: With dead ends: 18455 [2023-11-29 00:47:19,846 INFO L226 Difference]: Without dead ends: 18445 [2023-11-29 00:47:19,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1273 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1117, Invalid=3713, Unknown=0, NotChecked=0, Total=4830 [2023-11-29 00:47:19,850 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 483 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 2940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:47:19,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1575 Invalid, 2940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 00:47:19,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18445 states. [2023-11-29 00:47:20,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18445 to 17125. [2023-11-29 00:47:20,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17125 states, 16217 states have (on average 1.1567490904606277) internal successors, (18759), 16223 states have internal predecessors, (18759), 884 states have call successors, (884), 17 states have call predecessors, (884), 17 states have return successors, (884), 884 states have call predecessors, (884), 884 states have call successors, (884) [2023-11-29 00:47:20,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17125 states to 17125 states and 20527 transitions. [2023-11-29 00:47:20,836 INFO L78 Accepts]: Start accepts. Automaton has 17125 states and 20527 transitions. Word has length 317 [2023-11-29 00:47:20,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:47:20,837 INFO L495 AbstractCegarLoop]: Abstraction has 17125 states and 20527 transitions. [2023-11-29 00:47:20,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 12.041666666666666) internal successors, (289), 24 states have internal predecessors, (289), 15 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (17), 16 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-29 00:47:20,837 INFO L276 IsEmpty]: Start isEmpty. Operand 17125 states and 20527 transitions. [2023-11-29 00:47:20,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-11-29 00:47:20,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:47:20,843 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:47:20,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 00:47:21,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2023-11-29 00:47:21,044 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:47:21,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:47:21,044 INFO L85 PathProgramCache]: Analyzing trace with hash 354923095, now seen corresponding path program 10 times [2023-11-29 00:47:21,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:47:21,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433975581] [2023-11-29 00:47:21,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:47:21,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:47:21,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:47:21,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [383562743] [2023-11-29 00:47:21,056 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:47:21,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:21,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:47:21,057 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:47:21,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 00:47:21,181 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:47:21,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:47:21,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-29 00:47:21,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:47:21,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1985 backedges. 69 proven. 1545 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2023-11-29 00:47:21,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:47:22,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:47:22,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433975581] [2023-11-29 00:47:22,148 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:47:22,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383562743] [2023-11-29 00:47:22,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383562743] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:47:22,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:47:22,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 00:47:22,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891393109] [2023-11-29 00:47:22,149 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:47:22,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 00:47:22,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:47:22,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 00:47:22,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:47:22,150 INFO L87 Difference]: Start difference. First operand 17125 states and 20527 transitions. Second operand has 16 states, 15 states have (on average 13.6) internal successors, (204), 16 states have internal predecessors, (204), 10 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-29 00:47:24,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:47:24,730 INFO L93 Difference]: Finished difference Result 20000 states and 23865 transitions. [2023-11-29 00:47:24,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-11-29 00:47:24,730 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 13.6) internal successors, (204), 16 states have internal predecessors, (204), 10 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 340 [2023-11-29 00:47:24,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:47:24,748 INFO L225 Difference]: With dead ends: 20000 [2023-11-29 00:47:24,748 INFO L226 Difference]: Without dead ends: 18905 [2023-11-29 00:47:24,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=382, Invalid=1340, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 00:47:24,756 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 338 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1161 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:47:24,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 718 Invalid, 1184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1161 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 00:47:24,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18905 states. [2023-11-29 00:47:25,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18905 to 16634. [2023-11-29 00:47:25,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16634 states, 15751 states have (on average 1.1610056504348931) internal successors, (18287), 15757 states have internal predecessors, (18287), 859 states have call successors, (859), 17 states have call predecessors, (859), 17 states have return successors, (859), 859 states have call predecessors, (859), 859 states have call successors, (859) [2023-11-29 00:47:25,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16634 states to 16634 states and 20005 transitions. [2023-11-29 00:47:25,757 INFO L78 Accepts]: Start accepts. Automaton has 16634 states and 20005 transitions. Word has length 340 [2023-11-29 00:47:25,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:47:25,757 INFO L495 AbstractCegarLoop]: Abstraction has 16634 states and 20005 transitions. [2023-11-29 00:47:25,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 13.6) internal successors, (204), 16 states have internal predecessors, (204), 10 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-29 00:47:25,758 INFO L276 IsEmpty]: Start isEmpty. Operand 16634 states and 20005 transitions. [2023-11-29 00:47:25,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-29 00:47:25,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:47:25,764 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:47:25,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2023-11-29 00:47:25,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-29 00:47:25,964 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:47:25,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:47:25,965 INFO L85 PathProgramCache]: Analyzing trace with hash -192504740, now seen corresponding path program 3 times [2023-11-29 00:47:25,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:47:25,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276930808] [2023-11-29 00:47:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:47:25,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:47:25,977 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:47:25,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43358664] [2023-11-29 00:47:25,977 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:47:25,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:25,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:47:25,978 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:47:25,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 00:47:26,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2023-11-29 00:47:26,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:47:26,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 00:47:26,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:47:26,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 42 proven. 2059 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-11-29 00:47:26,665 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:47:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2483 backedges. 42 proven. 2059 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2023-11-29 00:47:27,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:47:27,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276930808] [2023-11-29 00:47:27,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:47:27,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43358664] [2023-11-29 00:47:27,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43358664] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:47:27,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:47:27,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2023-11-29 00:47:27,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844993484] [2023-11-29 00:47:27,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:47:27,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-29 00:47:27,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:47:27,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-29 00:47:27,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=518, Invalid=964, Unknown=0, NotChecked=0, Total=1482 [2023-11-29 00:47:27,418 INFO L87 Difference]: Start difference. First operand 16634 states and 20005 transitions. Second operand has 39 states, 38 states have (on average 15.0) internal successors, (570), 39 states have internal predecessors, (570), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-29 00:47:32,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:47:32,783 INFO L93 Difference]: Finished difference Result 42138 states and 51014 transitions. [2023-11-29 00:47:32,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-11-29 00:47:32,783 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 15.0) internal successors, (570), 39 states have internal predecessors, (570), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 365 [2023-11-29 00:47:32,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:47:32,818 INFO L225 Difference]: With dead ends: 42138 [2023-11-29 00:47:32,818 INFO L226 Difference]: Without dead ends: 42072 [2023-11-29 00:47:32,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3904 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=4259, Invalid=8851, Unknown=0, NotChecked=0, Total=13110 [2023-11-29 00:47:32,827 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1222 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:47:32,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 360 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 00:47:32,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42072 states. [2023-11-29 00:47:35,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42072 to 41065. [2023-11-29 00:47:35,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41065 states, 38989 states have (on average 1.1134679012029034) internal successors, (43413), 38995 states have internal predecessors, (43413), 2052 states have call successors, (2052), 17 states have call predecessors, (2052), 17 states have return successors, (2052), 2052 states have call predecessors, (2052), 2052 states have call successors, (2052) [2023-11-29 00:47:35,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41065 states to 41065 states and 47517 transitions. [2023-11-29 00:47:35,792 INFO L78 Accepts]: Start accepts. Automaton has 41065 states and 47517 transitions. Word has length 365 [2023-11-29 00:47:35,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:47:35,793 INFO L495 AbstractCegarLoop]: Abstraction has 41065 states and 47517 transitions. [2023-11-29 00:47:35,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 15.0) internal successors, (570), 39 states have internal predecessors, (570), 31 states have call successors, (32), 1 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2023-11-29 00:47:35,793 INFO L276 IsEmpty]: Start isEmpty. Operand 41065 states and 47517 transitions. [2023-11-29 00:47:35,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-11-29 00:47:35,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:47:35,801 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:47:35,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 00:47:36,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2023-11-29 00:47:36,001 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:47:36,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:47:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash -131283242, now seen corresponding path program 3 times [2023-11-29 00:47:36,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:47:36,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104616507] [2023-11-29 00:47:36,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:47:36,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:47:36,016 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:47:36,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [822880470] [2023-11-29 00:47:36,016 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:47:36,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:36,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:47:36,017 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:47:36,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 00:47:36,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 00:47:36,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:47:36,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:47:36,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:47:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 348 proven. 0 refuted. 0 times theorem prover too weak. 2464 trivial. 0 not checked. [2023-11-29 00:47:36,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:47:36,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:47:36,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104616507] [2023-11-29 00:47:36,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:47:36,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822880470] [2023-11-29 00:47:36,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822880470] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:47:36,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:47:36,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:47:36,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913868054] [2023-11-29 00:47:36,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:47:36,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:47:36,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:47:36,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:47:36,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:47:36,116 INFO L87 Difference]: Start difference. First operand 41065 states and 47517 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (4), 2 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 00:47:38,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:47:38,904 INFO L93 Difference]: Finished difference Result 41065 states and 47517 transitions. [2023-11-29 00:47:38,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:47:38,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (4), 2 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 383 [2023-11-29 00:47:38,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:47:38,941 INFO L225 Difference]: With dead ends: 41065 [2023-11-29 00:47:38,942 INFO L226 Difference]: Without dead ends: 41064 [2023-11-29 00:47:38,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 379 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:47:38,947 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 21 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:47:38,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 122 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:47:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41064 states. [2023-11-29 00:47:41,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41064 to 41042. [2023-11-29 00:47:42,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41042 states, 38967 states have (on average 1.0615135884209717) internal successors, (41364), 38974 states have internal predecessors, (41364), 2052 states have call successors, (2052), 17 states have call predecessors, (2052), 17 states have return successors, (2052), 2050 states have call predecessors, (2052), 2052 states have call successors, (2052) [2023-11-29 00:47:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41042 states to 41042 states and 45468 transitions. [2023-11-29 00:47:42,108 INFO L78 Accepts]: Start accepts. Automaton has 41042 states and 45468 transitions. Word has length 383 [2023-11-29 00:47:42,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:47:42,109 INFO L495 AbstractCegarLoop]: Abstraction has 41042 states and 45468 transitions. [2023-11-29 00:47:42,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (4), 2 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 00:47:42,109 INFO L276 IsEmpty]: Start isEmpty. Operand 41042 states and 45468 transitions. [2023-11-29 00:47:42,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-11-29 00:47:42,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:47:42,120 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:47:42,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 00:47:42,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:42,321 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:47:42,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:47:42,322 INFO L85 PathProgramCache]: Analyzing trace with hash -675637261, now seen corresponding path program 2 times [2023-11-29 00:47:42,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:47:42,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766712042] [2023-11-29 00:47:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:47:42,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:47:42,341 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:47:42,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [362344816] [2023-11-29 00:47:42,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:47:42,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:42,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:47:42,342 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:47:42,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 00:47:42,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:47:42,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:47:42,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 00:47:42,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:47:43,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2632 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:47:43,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:47:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2636 backedges. 0 proven. 2152 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2023-11-29 00:47:44,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:47:44,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766712042] [2023-11-29 00:47:44,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:47:44,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362344816] [2023-11-29 00:47:44,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362344816] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:47:44,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:47:44,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 36] total 70 [2023-11-29 00:47:44,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087534973] [2023-11-29 00:47:44,151 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:47:44,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2023-11-29 00:47:44,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:47:44,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2023-11-29 00:47:44,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1259, Invalid=3571, Unknown=0, NotChecked=0, Total=4830 [2023-11-29 00:47:44,155 INFO L87 Difference]: Start difference. First operand 41042 states and 45468 transitions. Second operand has 70 states, 70 states have (on average 9.242857142857142) internal successors, (647), 70 states have internal predecessors, (647), 34 states have call successors, (36), 18 states have call predecessors, (36), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2023-11-29 00:47:50,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:47:50,172 INFO L93 Difference]: Finished difference Result 50916 states and 56844 transitions. [2023-11-29 00:47:50,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2023-11-29 00:47:50,173 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 9.242857142857142) internal successors, (647), 70 states have internal predecessors, (647), 34 states have call successors, (36), 18 states have call predecessors, (36), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) Word has length 386 [2023-11-29 00:47:50,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:47:50,218 INFO L225 Difference]: With dead ends: 50916 [2023-11-29 00:47:50,218 INFO L226 Difference]: Without dead ends: 50908 [2023-11-29 00:47:50,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 837 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4021 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5949, Invalid=12683, Unknown=0, NotChecked=0, Total=18632 [2023-11-29 00:47:50,227 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 815 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:47:50,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 1096 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:47:50,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50908 states. [2023-11-29 00:47:54,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50908 to 50728. [2023-11-29 00:47:54,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50728 states, 48120 states have (on average 1.0603699085619285) internal successors, (51025), 48129 states have internal predecessors, (51025), 2567 states have call successors, (2567), 35 states have call predecessors, (2567), 35 states have return successors, (2567), 2563 states have call predecessors, (2567), 2567 states have call successors, (2567) [2023-11-29 00:47:54,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50728 states to 50728 states and 56159 transitions. [2023-11-29 00:47:54,291 INFO L78 Accepts]: Start accepts. Automaton has 50728 states and 56159 transitions. Word has length 386 [2023-11-29 00:47:54,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:47:54,292 INFO L495 AbstractCegarLoop]: Abstraction has 50728 states and 56159 transitions. [2023-11-29 00:47:54,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 9.242857142857142) internal successors, (647), 70 states have internal predecessors, (647), 34 states have call successors, (36), 18 states have call predecessors, (36), 18 states have return successors, (36), 34 states have call predecessors, (36), 34 states have call successors, (36) [2023-11-29 00:47:54,292 INFO L276 IsEmpty]: Start isEmpty. Operand 50728 states and 56159 transitions. [2023-11-29 00:47:54,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-11-29 00:47:54,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:47:54,306 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:47:54,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 00:47:54,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:54,506 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:47:54,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:47:54,507 INFO L85 PathProgramCache]: Analyzing trace with hash -675636843, now seen corresponding path program 11 times [2023-11-29 00:47:54,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:47:54,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589304292] [2023-11-29 00:47:54,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:47:54,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:47:54,528 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:47:54,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1429266417] [2023-11-29 00:47:54,529 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 00:47:54,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:54,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:47:54,530 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:47:54,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 00:47:54,682 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2023-11-29 00:47:54,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:47:54,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 00:47:54,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:47:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2668 backedges. 0 proven. 1878 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2023-11-29 00:47:55,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:47:55,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2668 backedges. 0 proven. 1878 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2023-11-29 00:47:55,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:47:55,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589304292] [2023-11-29 00:47:55,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:47:55,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429266417] [2023-11-29 00:47:55,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429266417] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:47:55,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:47:55,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-29 00:47:55,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305286029] [2023-11-29 00:47:55,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:47:55,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:47:55,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:47:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:47:55,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:47:55,875 INFO L87 Difference]: Start difference. First operand 50728 states and 56159 transitions. Second operand has 20 states, 19 states have (on average 15.947368421052632) internal successors, (303), 20 states have internal predecessors, (303), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 00:48:06,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:48:06,746 INFO L93 Difference]: Finished difference Result 64835 states and 71492 transitions. [2023-11-29 00:48:06,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-11-29 00:48:06,747 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 15.947368421052632) internal successors, (303), 20 states have internal predecessors, (303), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 386 [2023-11-29 00:48:06,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:48:06,832 INFO L225 Difference]: With dead ends: 64835 [2023-11-29 00:48:06,833 INFO L226 Difference]: Without dead ends: 64829 [2023-11-29 00:48:06,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 832 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2163 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1518, Invalid=5124, Unknown=0, NotChecked=0, Total=6642 [2023-11-29 00:48:06,840 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 726 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 2136 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:48:06,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 1135 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2136 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 00:48:06,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64829 states. [2023-11-29 00:48:11,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64829 to 56146. [2023-11-29 00:48:11,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56146 states, 53258 states have (on average 1.0601787524878892) internal successors, (56463), 53267 states have internal predecessors, (56463), 2847 states have call successors, (2847), 35 states have call predecessors, (2847), 35 states have return successors, (2847), 2843 states have call predecessors, (2847), 2847 states have call successors, (2847) [2023-11-29 00:48:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56146 states to 56146 states and 62157 transitions. [2023-11-29 00:48:11,808 INFO L78 Accepts]: Start accepts. Automaton has 56146 states and 62157 transitions. Word has length 386 [2023-11-29 00:48:11,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:48:11,809 INFO L495 AbstractCegarLoop]: Abstraction has 56146 states and 62157 transitions. [2023-11-29 00:48:11,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 15.947368421052632) internal successors, (303), 20 states have internal predecessors, (303), 15 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 00:48:11,809 INFO L276 IsEmpty]: Start isEmpty. Operand 56146 states and 62157 transitions. [2023-11-29 00:48:11,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-11-29 00:48:11,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:48:11,818 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:48:11,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 00:48:12,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 00:48:12,019 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:48:12,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:48:12,019 INFO L85 PathProgramCache]: Analyzing trace with hash 206190957, now seen corresponding path program 12 times [2023-11-29 00:48:12,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:48:12,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023245013] [2023-11-29 00:48:12,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:48:12,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:48:12,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:48:12,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1452660479] [2023-11-29 00:48:12,034 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 00:48:12,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:48:12,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:48:12,035 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:48:12,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 00:48:12,788 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2023-11-29 00:48:12,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:48:12,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-29 00:48:12,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:48:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2604 backedges. 0 proven. 2030 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2023-11-29 00:48:13,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:48:13,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:48:13,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023245013] [2023-11-29 00:48:13,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:48:13,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452660479] [2023-11-29 00:48:13,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452660479] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:48:13,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:48:13,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 00:48:13,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784247624] [2023-11-29 00:48:13,853 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:48:13,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:48:13,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:48:13,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:48:13,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=248, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:48:13,854 INFO L87 Difference]: Start difference. First operand 56146 states and 62157 transitions. Second operand has 18 states, 17 states have (on average 13.176470588235293) internal successors, (224), 18 states have internal predecessors, (224), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 00:48:18,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:48:18,812 INFO L93 Difference]: Finished difference Result 57229 states and 63316 transitions. [2023-11-29 00:48:18,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 00:48:18,813 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.176470588235293) internal successors, (224), 18 states have internal predecessors, (224), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 386 [2023-11-29 00:48:18,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:48:18,870 INFO L225 Difference]: With dead ends: 57229 [2023-11-29 00:48:18,870 INFO L226 Difference]: Without dead ends: 57228 [2023-11-29 00:48:18,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=388, Invalid=802, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 00:48:18,878 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 169 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:48:18,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 363 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:48:18,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57228 states. [2023-11-29 00:48:23,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57228 to 56146. [2023-11-29 00:48:23,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56146 states, 53258 states have (on average 1.060159975966052) internal successors, (56462), 53267 states have internal predecessors, (56462), 2847 states have call successors, (2847), 35 states have call predecessors, (2847), 35 states have return successors, (2847), 2843 states have call predecessors, (2847), 2847 states have call successors, (2847) [2023-11-29 00:48:23,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56146 states to 56146 states and 62156 transitions. [2023-11-29 00:48:23,561 INFO L78 Accepts]: Start accepts. Automaton has 56146 states and 62156 transitions. Word has length 386 [2023-11-29 00:48:23,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:48:23,561 INFO L495 AbstractCegarLoop]: Abstraction has 56146 states and 62156 transitions. [2023-11-29 00:48:23,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.176470588235293) internal successors, (224), 18 states have internal predecessors, (224), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 00:48:23,561 INFO L276 IsEmpty]: Start isEmpty. Operand 56146 states and 62156 transitions. [2023-11-29 00:48:23,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2023-11-29 00:48:23,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:48:23,572 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:48:23,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 00:48:23,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 00:48:23,772 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:48:23,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:48:23,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1519897091, now seen corresponding path program 13 times [2023-11-29 00:48:23,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:48:23,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090331881] [2023-11-29 00:48:23,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:48:23,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:48:23,787 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:48:23,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865072426] [2023-11-29 00:48:23,788 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 00:48:23,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:48:23,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:48:23,789 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:48:23,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 00:48:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:48:24,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 00:48:24,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:48:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3307 backedges. 0 proven. 2571 refuted. 0 times theorem prover too weak. 736 trivial. 0 not checked. [2023-11-29 00:48:24,945 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:48:25,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:48:25,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090331881] [2023-11-29 00:48:25,059 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:48:25,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865072426] [2023-11-29 00:48:25,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865072426] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:48:25,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:48:25,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 00:48:25,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707704028] [2023-11-29 00:48:25,060 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:48:25,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:48:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:48:25,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:48:25,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:48:25,061 INFO L87 Difference]: Start difference. First operand 56146 states and 62156 transitions. Second operand has 14 states, 13 states have (on average 18.0) internal successors, (234), 14 states have internal predecessors, (234), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 00:48:29,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:48:29,679 INFO L93 Difference]: Finished difference Result 57577 states and 63696 transitions. [2023-11-29 00:48:29,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:48:29,679 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.0) internal successors, (234), 14 states have internal predecessors, (234), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 432 [2023-11-29 00:48:29,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:48:29,741 INFO L225 Difference]: With dead ends: 57577 [2023-11-29 00:48:29,742 INFO L226 Difference]: Without dead ends: 57576 [2023-11-29 00:48:29,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=162, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:48:29,752 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 52 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:48:29,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 389 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:48:29,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57576 states. [2023-11-29 00:48:33,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57576 to 56146. [2023-11-29 00:48:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56146 states, 53258 states have (on average 1.060141199444215) internal successors, (56461), 53267 states have internal predecessors, (56461), 2847 states have call successors, (2847), 35 states have call predecessors, (2847), 35 states have return successors, (2847), 2843 states have call predecessors, (2847), 2847 states have call successors, (2847) [2023-11-29 00:48:34,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56146 states to 56146 states and 62155 transitions. [2023-11-29 00:48:34,090 INFO L78 Accepts]: Start accepts. Automaton has 56146 states and 62155 transitions. Word has length 432 [2023-11-29 00:48:34,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:48:34,090 INFO L495 AbstractCegarLoop]: Abstraction has 56146 states and 62155 transitions. [2023-11-29 00:48:34,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.0) internal successors, (234), 14 states have internal predecessors, (234), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 00:48:34,091 INFO L276 IsEmpty]: Start isEmpty. Operand 56146 states and 62155 transitions. [2023-11-29 00:48:34,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2023-11-29 00:48:34,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:48:34,100 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:48:34,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 00:48:34,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 00:48:34,300 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:48:34,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:48:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash 20957691, now seen corresponding path program 3 times [2023-11-29 00:48:34,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:48:34,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190988390] [2023-11-29 00:48:34,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:48:34,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:48:34,381 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:48:34,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849279113] [2023-11-29 00:48:34,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:48:34,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:48:34,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:48:34,383 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:48:34,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 00:48:34,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2023-11-29 00:48:34,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:48:34,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 00:48:34,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:48:34,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2023-11-29 00:48:34,968 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:48:35,630 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2023-11-29 00:48:35,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:48:35,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190988390] [2023-11-29 00:48:35,631 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:48:35,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849279113] [2023-11-29 00:48:35,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849279113] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:48:35,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:48:35,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2023-11-29 00:48:35,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126102487] [2023-11-29 00:48:35,631 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:48:35,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-29 00:48:35,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:48:35,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-29 00:48:35,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 00:48:35,635 INFO L87 Difference]: Start difference. First operand 56146 states and 62155 transitions. Second operand has 40 states, 39 states have (on average 17.666666666666668) internal successors, (689), 40 states have internal predecessors, (689), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-29 00:48:46,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:48:46,847 INFO L93 Difference]: Finished difference Result 91028 states and 102179 transitions. [2023-11-29 00:48:46,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-11-29 00:48:46,848 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 17.666666666666668) internal successors, (689), 40 states have internal predecessors, (689), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) Word has length 447 [2023-11-29 00:48:46,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:48:46,943 INFO L225 Difference]: With dead ends: 91028 [2023-11-29 00:48:46,943 INFO L226 Difference]: Without dead ends: 91027 [2023-11-29 00:48:46,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 854 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 00:48:46,957 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 1355 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:48:46,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 762 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 00:48:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91027 states. [2023-11-29 00:48:52,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91027 to 69147. [2023-11-29 00:48:52,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69147 states, 65574 states have (on average 1.0763869826455608) internal successors, (70583), 65582 states have internal predecessors, (70583), 3532 states have call successors, (3532), 35 states have call predecessors, (3532), 35 states have return successors, (3532), 3529 states have call predecessors, (3532), 3532 states have call successors, (3532) [2023-11-29 00:48:52,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69147 states to 69147 states and 77647 transitions. [2023-11-29 00:48:52,662 INFO L78 Accepts]: Start accepts. Automaton has 69147 states and 77647 transitions. Word has length 447 [2023-11-29 00:48:52,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:48:52,662 INFO L495 AbstractCegarLoop]: Abstraction has 69147 states and 77647 transitions. [2023-11-29 00:48:52,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 17.666666666666668) internal successors, (689), 40 states have internal predecessors, (689), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-29 00:48:52,663 INFO L276 IsEmpty]: Start isEmpty. Operand 69147 states and 77647 transitions. [2023-11-29 00:48:52,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-11-29 00:48:52,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:48:52,675 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:48:52,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 00:48:52,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 00:48:52,876 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:48:52,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:48:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1743720643, now seen corresponding path program 14 times [2023-11-29 00:48:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:48:52,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324188443] [2023-11-29 00:48:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:48:52,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:48:52,891 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:48:52,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291611173] [2023-11-29 00:48:52,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:48:52,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:48:52,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:48:52,892 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:48:52,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 00:48:53,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:48:53,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:48:53,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 00:48:53,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:48:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 1558 proven. 2028 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2023-11-29 00:48:53,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:48:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 1558 proven. 2028 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2023-11-29 00:48:54,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:48:54,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324188443] [2023-11-29 00:48:54,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:48:54,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291611173] [2023-11-29 00:48:54,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291611173] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:48:54,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:48:54,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 42 [2023-11-29 00:48:54,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514945858] [2023-11-29 00:48:54,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:48:54,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-29 00:48:54,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:48:54,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-29 00:48:54,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=1251, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 00:48:54,392 INFO L87 Difference]: Start difference. First operand 69147 states and 77647 transitions. Second operand has 42 states, 42 states have (on average 16.666666666666668) internal successors, (700), 42 states have internal predecessors, (700), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-29 00:49:08,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:49:08,895 INFO L93 Difference]: Finished difference Result 192800 states and 222345 transitions. [2023-11-29 00:49:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2023-11-29 00:49:08,896 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 16.666666666666668) internal successors, (700), 42 states have internal predecessors, (700), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) Word has length 478 [2023-11-29 00:49:08,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:49:09,093 INFO L225 Difference]: With dead ends: 192800 [2023-11-29 00:49:09,093 INFO L226 Difference]: Without dead ends: 155837 [2023-11-29 00:49:09,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 912 SyntacticMatches, 2 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7973 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=4773, Invalid=17279, Unknown=0, NotChecked=0, Total=22052 [2023-11-29 00:49:09,142 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 2647 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 3313 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2647 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 3479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 3313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:49:09,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2647 Valid, 1984 Invalid, 3479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 3313 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 00:49:09,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155837 states. [2023-11-29 00:49:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155837 to 112914. [2023-11-29 00:49:18,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112914 states, 107029 states have (on average 1.0977492081585365) internal successors, (117491), 107037 states have internal predecessors, (117491), 5844 states have call successors, (5844), 35 states have call predecessors, (5844), 35 states have return successors, (5844), 5841 states have call predecessors, (5844), 5844 states have call successors, (5844) [2023-11-29 00:49:18,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112914 states to 112914 states and 129179 transitions. [2023-11-29 00:49:18,284 INFO L78 Accepts]: Start accepts. Automaton has 112914 states and 129179 transitions. Word has length 478 [2023-11-29 00:49:18,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:49:18,285 INFO L495 AbstractCegarLoop]: Abstraction has 112914 states and 129179 transitions. [2023-11-29 00:49:18,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 16.666666666666668) internal successors, (700), 42 states have internal predecessors, (700), 39 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-11-29 00:49:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 112914 states and 129179 transitions. [2023-11-29 00:49:18,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-11-29 00:49:18,294 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:49:18,294 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:49:18,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2023-11-29 00:49:18,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 00:49:18,495 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:49:18,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:49:18,495 INFO L85 PathProgramCache]: Analyzing trace with hash 893109273, now seen corresponding path program 15 times [2023-11-29 00:49:18,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:49:18,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915318771] [2023-11-29 00:49:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:49:18,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:49:18,512 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:49:18,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [361246314] [2023-11-29 00:49:18,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:49:18,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:49:18,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:49:18,513 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:49:18,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 00:49:18,743 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2023-11-29 00:49:18,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:49:18,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 770 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 00:49:18,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:49:19,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4094 backedges. 36 proven. 3231 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2023-11-29 00:49:19,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:49:19,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:49:19,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915318771] [2023-11-29 00:49:19,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:49:19,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361246314] [2023-11-29 00:49:19,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361246314] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:49:19,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:49:19,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 00:49:19,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283017704] [2023-11-29 00:49:19,945 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:49:19,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 00:49:19,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:49:19,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 00:49:19,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2023-11-29 00:49:19,947 INFO L87 Difference]: Start difference. First operand 112914 states and 129179 transitions. Second operand has 19 states, 18 states have (on average 15.166666666666666) internal successors, (273), 19 states have internal predecessors, (273), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 00:49:29,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:49:29,757 INFO L93 Difference]: Finished difference Result 118221 states and 134870 transitions. [2023-11-29 00:49:29,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 00:49:29,757 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 15.166666666666666) internal successors, (273), 19 states have internal predecessors, (273), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 478 [2023-11-29 00:49:29,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:49:29,898 INFO L225 Difference]: With dead ends: 118221 [2023-11-29 00:49:29,898 INFO L226 Difference]: Without dead ends: 118220 [2023-11-29 00:49:29,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=668, Invalid=2524, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 00:49:29,917 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 605 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:49:29,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 735 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:49:29,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118220 states. [2023-11-29 00:49:38,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118220 to 112914. [2023-11-29 00:49:38,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112914 states, 107029 states have (on average 1.0977398648964298) internal successors, (117490), 107037 states have internal predecessors, (117490), 5844 states have call successors, (5844), 35 states have call predecessors, (5844), 35 states have return successors, (5844), 5841 states have call predecessors, (5844), 5844 states have call successors, (5844) [2023-11-29 00:49:38,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112914 states to 112914 states and 129178 transitions. [2023-11-29 00:49:38,470 INFO L78 Accepts]: Start accepts. Automaton has 112914 states and 129178 transitions. Word has length 478 [2023-11-29 00:49:38,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:49:38,470 INFO L495 AbstractCegarLoop]: Abstraction has 112914 states and 129178 transitions. [2023-11-29 00:49:38,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 15.166666666666666) internal successors, (273), 19 states have internal predecessors, (273), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 00:49:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 112914 states and 129178 transitions. [2023-11-29 00:49:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2023-11-29 00:49:38,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:49:38,487 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:49:38,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2023-11-29 00:49:38,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:49:38,688 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:49:38,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:49:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1283033007, now seen corresponding path program 16 times [2023-11-29 00:49:38,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:49:38,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892176728] [2023-11-29 00:49:38,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:49:38,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:49:38,706 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:49:38,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332726148] [2023-11-29 00:49:38,706 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:49:38,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:49:38,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:49:38,707 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:49:38,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 00:49:38,877 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:49:38,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:49:38,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 00:49:38,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:49:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4965 backedges. 0 proven. 3887 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2023-11-29 00:49:39,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:49:40,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:49:40,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892176728] [2023-11-29 00:49:40,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:49:40,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332726148] [2023-11-29 00:49:40,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332726148] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:49:40,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:49:40,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 00:49:40,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98663740] [2023-11-29 00:49:40,028 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:49:40,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 00:49:40,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:49:40,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 00:49:40,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=182, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:49:40,029 INFO L87 Difference]: Start difference. First operand 112914 states and 129178 transitions. Second operand has 16 states, 15 states have (on average 18.666666666666668) internal successors, (280), 16 states have internal predecessors, (280), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 00:49:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:49:48,896 INFO L93 Difference]: Finished difference Result 115060 states and 131512 transitions. [2023-11-29 00:49:48,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:49:48,897 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.666666666666668) internal successors, (280), 16 states have internal predecessors, (280), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 524 [2023-11-29 00:49:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:49:49,037 INFO L225 Difference]: With dead ends: 115060 [2023-11-29 00:49:49,037 INFO L226 Difference]: Without dead ends: 115059 [2023-11-29 00:49:49,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 539 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=201, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:49:49,054 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 87 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:49:49,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 343 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:49:49,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115059 states. [2023-11-29 00:49:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115059 to 112914. [2023-11-29 00:49:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112914 states, 107029 states have (on average 1.0977305216343234) internal successors, (117489), 107037 states have internal predecessors, (117489), 5844 states have call successors, (5844), 35 states have call predecessors, (5844), 35 states have return successors, (5844), 5841 states have call predecessors, (5844), 5844 states have call successors, (5844) [2023-11-29 00:49:57,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112914 states to 112914 states and 129177 transitions. [2023-11-29 00:49:57,399 INFO L78 Accepts]: Start accepts. Automaton has 112914 states and 129177 transitions. Word has length 524 [2023-11-29 00:49:57,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:49:57,400 INFO L495 AbstractCegarLoop]: Abstraction has 112914 states and 129177 transitions. [2023-11-29 00:49:57,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.666666666666668) internal successors, (280), 16 states have internal predecessors, (280), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-29 00:49:57,400 INFO L276 IsEmpty]: Start isEmpty. Operand 112914 states and 129177 transitions. [2023-11-29 00:49:57,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2023-11-29 00:49:57,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:49:57,413 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:49:57,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2023-11-29 00:49:57,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:49:57,614 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:49:57,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:49:57,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1638794161, now seen corresponding path program 4 times [2023-11-29 00:49:57,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:49:57,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147454394] [2023-11-29 00:49:57,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:49:57,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:49:57,629 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:49:57,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028300388] [2023-11-29 00:49:57,630 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:49:57,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:49:57,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:49:57,631 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:49:57,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 00:49:57,766 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:49:57,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:49:57,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 00:49:57,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:49:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 5713 backedges. 0 proven. 4697 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2023-11-29 00:49:58,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:49:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 5713 backedges. 0 proven. 4697 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2023-11-29 00:49:59,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:49:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147454394] [2023-11-29 00:49:59,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:49:59,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028300388] [2023-11-29 00:49:59,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028300388] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:49:59,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:49:59,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2023-11-29 00:49:59,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942529514] [2023-11-29 00:49:59,125 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:49:59,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-11-29 00:49:59,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:49:59,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-11-29 00:49:59,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 00:49:59,128 INFO L87 Difference]: Start difference. First operand 112914 states and 129177 transitions. Second operand has 48 states, 47 states have (on average 17.595744680851062) internal successors, (827), 48 states have internal predecessors, (827), 47 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-11-29 00:50:09,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:50:09,237 INFO L93 Difference]: Finished difference Result 134315 states and 155225 transitions. [2023-11-29 00:50:09,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 00:50:09,238 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 17.595744680851062) internal successors, (827), 48 states have internal predecessors, (827), 47 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) Word has length 536 [2023-11-29 00:50:09,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:50:09,397 INFO L225 Difference]: With dead ends: 134315 [2023-11-29 00:50:09,397 INFO L226 Difference]: Without dead ends: 134314 [2023-11-29 00:50:09,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1070 GetRequests, 1024 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 00:50:09,419 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 1265 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:50:09,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 733 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:50:09,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134314 states. [2023-11-29 00:50:19,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134314 to 131410. [2023-11-29 00:50:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131410 states, 124555 states have (on average 1.1063867367829472) internal successors, (137806), 124562 states have internal predecessors, (137806), 6814 states have call successors, (6814), 35 states have call predecessors, (6814), 35 states have return successors, (6814), 6812 states have call predecessors, (6814), 6814 states have call successors, (6814) [2023-11-29 00:50:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131410 states to 131410 states and 151434 transitions. [2023-11-29 00:50:20,037 INFO L78 Accepts]: Start accepts. Automaton has 131410 states and 151434 transitions. Word has length 536 [2023-11-29 00:50:20,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:50:20,037 INFO L495 AbstractCegarLoop]: Abstraction has 131410 states and 151434 transitions. [2023-11-29 00:50:20,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 17.595744680851062) internal successors, (827), 48 states have internal predecessors, (827), 47 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-11-29 00:50:20,037 INFO L276 IsEmpty]: Start isEmpty. Operand 131410 states and 151434 transitions. [2023-11-29 00:50:20,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2023-11-29 00:50:20,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:50:20,055 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 20, 20, 20, 20, 20, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:50:20,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 00:50:20,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:50:20,256 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:50:20,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:20,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1202238234, now seen corresponding path program 17 times [2023-11-29 00:50:20,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:20,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973110716] [2023-11-29 00:50:20,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:20,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:20,273 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:50:20,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392578619] [2023-11-29 00:50:20,273 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 00:50:20,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:50:20,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:20,274 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:50:20,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 00:50:20,458 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-29 00:50:20,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:50:20,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 802 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:50:20,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 5721 backedges. 3074 proven. 979 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2023-11-29 00:50:20,870 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:50:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5721 backedges. 3074 proven. 979 refuted. 0 times theorem prover too weak. 1668 trivial. 0 not checked. [2023-11-29 00:50:21,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:50:21,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973110716] [2023-11-29 00:50:21,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:50:21,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392578619] [2023-11-29 00:50:21,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392578619] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:50:21,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:50:21,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 26 [2023-11-29 00:50:21,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71328869] [2023-11-29 00:50:21,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:50:21,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 00:50:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:50:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 00:50:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:50:21,250 INFO L87 Difference]: Start difference. First operand 131410 states and 151434 transitions. Second operand has 26 states, 26 states have (on average 16.807692307692307) internal successors, (437), 26 states have internal predecessors, (437), 23 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-29 00:50:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:50:32,568 INFO L93 Difference]: Finished difference Result 156811 states and 180510 transitions. [2023-11-29 00:50:32,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-29 00:50:32,568 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 16.807692307692307) internal successors, (437), 26 states have internal predecessors, (437), 23 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) Word has length 547 [2023-11-29 00:50:32,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:50:32,720 INFO L225 Difference]: With dead ends: 156811 [2023-11-29 00:50:32,720 INFO L226 Difference]: Without dead ends: 115396 [2023-11-29 00:50:32,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1128 GetRequests, 1080 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=473, Invalid=1419, Unknown=0, NotChecked=0, Total=1892 [2023-11-29 00:50:32,756 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 588 mSDsluCounter, 1795 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 2746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:50:32,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 2106 Invalid, 2746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 00:50:32,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115396 states. [2023-11-29 00:50:40,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115396 to 111017. [2023-11-29 00:50:40,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111017 states, 105185 states have (on average 1.1094642772258403) internal successors, (116699), 105192 states have internal predecessors, (116699), 5791 states have call successors, (5791), 35 states have call predecessors, (5791), 35 states have return successors, (5791), 5789 states have call predecessors, (5791), 5791 states have call successors, (5791) [2023-11-29 00:50:40,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111017 states to 111017 states and 128281 transitions. [2023-11-29 00:50:40,716 INFO L78 Accepts]: Start accepts. Automaton has 111017 states and 128281 transitions. Word has length 547 [2023-11-29 00:50:40,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:50:40,716 INFO L495 AbstractCegarLoop]: Abstraction has 111017 states and 128281 transitions. [2023-11-29 00:50:40,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 16.807692307692307) internal successors, (437), 26 states have internal predecessors, (437), 23 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-29 00:50:40,717 INFO L276 IsEmpty]: Start isEmpty. Operand 111017 states and 128281 transitions. [2023-11-29 00:50:40,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2023-11-29 00:50:40,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:50:40,727 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:50:40,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2023-11-29 00:50:40,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:50:40,928 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:50:40,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:50:40,928 INFO L85 PathProgramCache]: Analyzing trace with hash 564950213, now seen corresponding path program 18 times [2023-11-29 00:50:40,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:50:40,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527613968] [2023-11-29 00:50:40,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:50:40,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:50:40,945 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:50:40,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954306900] [2023-11-29 00:50:40,945 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 00:50:40,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:50:40,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:50:40,946 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:50:40,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 00:50:41,293 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2023-11-29 00:50:41,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:50:41,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 98 conjunts are in the unsatisfiable core [2023-11-29 00:50:41,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:50:44,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5920 backedges. 107 proven. 4999 refuted. 0 times theorem prover too weak. 814 trivial. 0 not checked. [2023-11-29 00:50:44,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:50:44,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:50:44,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527613968] [2023-11-29 00:50:44,275 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:50:44,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954306900] [2023-11-29 00:50:44,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954306900] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:50:44,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:50:44,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2023-11-29 00:50:44,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164530360] [2023-11-29 00:50:44,276 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:50:44,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-11-29 00:50:44,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:50:44,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-11-29 00:50:44,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1958, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 00:50:44,278 INFO L87 Difference]: Start difference. First operand 111017 states and 128281 transitions. Second operand has 46 states, 45 states have (on average 9.4) internal successors, (423), 46 states have internal predecessors, (423), 23 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-29 00:50:57,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:50:57,000 INFO L93 Difference]: Finished difference Result 114471 states and 132134 transitions. [2023-11-29 00:50:57,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 00:50:57,001 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 9.4) internal successors, (423), 46 states have internal predecessors, (423), 23 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) Word has length 570 [2023-11-29 00:50:57,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:50:57,114 INFO L225 Difference]: With dead ends: 114471 [2023-11-29 00:50:57,114 INFO L226 Difference]: Without dead ends: 114470 [2023-11-29 00:50:57,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=392, Invalid=2914, Unknown=0, NotChecked=0, Total=3306 [2023-11-29 00:50:57,125 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 114 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 10776 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 4915 SdHoareTripleChecker+Invalid, 10784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 10776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:50:57,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 4915 Invalid, 10784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 10776 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 00:50:57,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114470 states. [2023-11-29 00:51:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114470 to 111017. [2023-11-29 00:51:04,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111017 states, 105185 states have (on average 1.109454770166849) internal successors, (116698), 105192 states have internal predecessors, (116698), 5791 states have call successors, (5791), 35 states have call predecessors, (5791), 35 states have return successors, (5791), 5789 states have call predecessors, (5791), 5791 states have call successors, (5791) [2023-11-29 00:51:05,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111017 states to 111017 states and 128280 transitions. [2023-11-29 00:51:05,074 INFO L78 Accepts]: Start accepts. Automaton has 111017 states and 128280 transitions. Word has length 570 [2023-11-29 00:51:05,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:05,074 INFO L495 AbstractCegarLoop]: Abstraction has 111017 states and 128280 transitions. [2023-11-29 00:51:05,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 9.4) internal successors, (423), 46 states have internal predecessors, (423), 23 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 23 states have call successors, (24) [2023-11-29 00:51:05,075 INFO L276 IsEmpty]: Start isEmpty. Operand 111017 states and 128280 transitions. [2023-11-29 00:51:05,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2023-11-29 00:51:05,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:05,092 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 20, 20, 20, 20, 20, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:51:05,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 00:51:05,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 00:51:05,293 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:51:05,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:05,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1023374586, now seen corresponding path program 19 times [2023-11-29 00:51:05,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:05,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591757840] [2023-11-29 00:51:05,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:05,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:05,310 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:05,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [551295828] [2023-11-29 00:51:05,310 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 00:51:05,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:05,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:05,311 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:05,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 00:51:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:51:05,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 00:51:05,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:06,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6654 backedges. 0 proven. 4754 refuted. 0 times theorem prover too weak. 1900 trivial. 0 not checked. [2023-11-29 00:51:06,602 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:51:06,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:06,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591757840] [2023-11-29 00:51:06,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:06,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551295828] [2023-11-29 00:51:06,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551295828] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:51:06,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:51:06,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 00:51:06,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547569842] [2023-11-29 00:51:06,703 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:51:06,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:51:06,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:06,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:51:06,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:51:06,705 INFO L87 Difference]: Start difference. First operand 111017 states and 128280 transitions. Second operand has 13 states, 12 states have (on average 16.333333333333332) internal successors, (196), 13 states have internal predecessors, (196), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-29 00:51:15,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:15,698 INFO L93 Difference]: Finished difference Result 114441 states and 132165 transitions. [2023-11-29 00:51:15,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 00:51:15,699 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 16.333333333333332) internal successors, (196), 13 states have internal predecessors, (196), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 593 [2023-11-29 00:51:15,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:15,850 INFO L225 Difference]: With dead ends: 114441 [2023-11-29 00:51:15,850 INFO L226 Difference]: Without dead ends: 114440 [2023-11-29 00:51:15,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:51:15,868 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 70 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:15,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 555 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:51:15,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114440 states. [2023-11-29 00:51:23,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114440 to 111017. [2023-11-29 00:51:23,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111017 states, 105185 states have (on average 1.1094452631078575) internal successors, (116697), 105192 states have internal predecessors, (116697), 5791 states have call successors, (5791), 35 states have call predecessors, (5791), 35 states have return successors, (5791), 5789 states have call predecessors, (5791), 5791 states have call successors, (5791) [2023-11-29 00:51:23,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111017 states to 111017 states and 128279 transitions. [2023-11-29 00:51:23,839 INFO L78 Accepts]: Start accepts. Automaton has 111017 states and 128279 transitions. Word has length 593 [2023-11-29 00:51:23,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:23,840 INFO L495 AbstractCegarLoop]: Abstraction has 111017 states and 128279 transitions. [2023-11-29 00:51:23,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 16.333333333333332) internal successors, (196), 13 states have internal predecessors, (196), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-29 00:51:23,840 INFO L276 IsEmpty]: Start isEmpty. Operand 111017 states and 128279 transitions. [2023-11-29 00:51:23,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2023-11-29 00:51:23,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:23,854 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 24, 24, 24, 24, 24, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:51:23,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 00:51:24,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 00:51:24,055 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:51:24,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:24,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1363742493, now seen corresponding path program 20 times [2023-11-29 00:51:24,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:24,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714825193] [2023-11-29 00:51:24,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:24,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:24,072 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:24,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1362292455] [2023-11-29 00:51:24,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:51:24,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:24,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:24,073 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:24,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 00:51:24,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:51:24,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:51:24,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 00:51:24,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:25,409 INFO L134 CoverageAnalysis]: Checked inductivity of 7443 backedges. 0 proven. 4705 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2023-11-29 00:51:25,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:51:26,548 INFO L134 CoverageAnalysis]: Checked inductivity of 7443 backedges. 0 proven. 4705 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2023-11-29 00:51:26,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:26,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714825193] [2023-11-29 00:51:26,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:26,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362292455] [2023-11-29 00:51:26,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362292455] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:51:26,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:51:26,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 33 [2023-11-29 00:51:26,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657470714] [2023-11-29 00:51:26,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:51:26,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 00:51:26,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:26,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 00:51:26,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=866, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:51:26,552 INFO L87 Difference]: Start difference. First operand 111017 states and 128279 transitions. Second operand has 34 states, 33 states have (on average 16.21212121212121) internal successors, (535), 34 states have internal predecessors, (535), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2023-11-29 00:51:48,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:51:48,649 INFO L93 Difference]: Finished difference Result 121268 states and 140103 transitions. [2023-11-29 00:51:48,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-11-29 00:51:48,650 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 16.21212121212121) internal successors, (535), 34 states have internal predecessors, (535), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) Word has length 616 [2023-11-29 00:51:48,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:51:48,785 INFO L225 Difference]: With dead ends: 121268 [2023-11-29 00:51:48,785 INFO L226 Difference]: Without dead ends: 121208 [2023-11-29 00:51:48,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1310 GetRequests, 1198 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3780 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=3289, Invalid=9593, Unknown=0, NotChecked=0, Total=12882 [2023-11-29 00:51:48,804 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 1605 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 4951 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 5340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 4951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:51:48,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 2749 Invalid, 5340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 4951 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-29 00:51:48,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121208 states. [2023-11-29 00:51:57,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121208 to 117308. [2023-11-29 00:51:57,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117308 states, 111146 states have (on average 1.1101704064923614) internal successors, (123391), 111161 states have internal predecessors, (123391), 6121 states have call successors, (6121), 35 states have call predecessors, (6121), 35 states have return successors, (6121), 6111 states have call predecessors, (6121), 6121 states have call successors, (6121) [2023-11-29 00:51:57,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117308 states to 117308 states and 135633 transitions. [2023-11-29 00:51:57,504 INFO L78 Accepts]: Start accepts. Automaton has 117308 states and 135633 transitions. Word has length 616 [2023-11-29 00:51:57,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:51:57,504 INFO L495 AbstractCegarLoop]: Abstraction has 117308 states and 135633 transitions. [2023-11-29 00:51:57,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 16.21212121212121) internal successors, (535), 34 states have internal predecessors, (535), 29 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 29 states have call predecessors, (30), 29 states have call successors, (30) [2023-11-29 00:51:57,505 INFO L276 IsEmpty]: Start isEmpty. Operand 117308 states and 135633 transitions. [2023-11-29 00:51:57,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2023-11-29 00:51:57,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:51:57,520 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:51:57,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 00:51:57,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:57,721 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:51:57,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:51:57,721 INFO L85 PathProgramCache]: Analyzing trace with hash -582489253, now seen corresponding path program 21 times [2023-11-29 00:51:57,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:51:57,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543638338] [2023-11-29 00:51:57,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:51:57,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:51:57,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:51:57,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858435851] [2023-11-29 00:51:57,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:51:57,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:51:57,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:51:57,741 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:51:57,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 00:51:58,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2023-11-29 00:51:58,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:51:58,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 00:51:58,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:51:58,627 INFO L134 CoverageAnalysis]: Checked inductivity of 6959 backedges. 39 proven. 5511 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2023-11-29 00:51:58,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:51:58,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:51:58,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543638338] [2023-11-29 00:51:58,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:51:58,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858435851] [2023-11-29 00:51:58,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858435851] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:51:58,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:51:58,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-29 00:51:58,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658935152] [2023-11-29 00:51:58,843 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:51:58,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:51:58,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:51:58,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:51:58,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:51:58,844 INFO L87 Difference]: Start difference. First operand 117308 states and 135633 transitions. Second operand has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-29 00:52:15,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:15,608 INFO L93 Difference]: Finished difference Result 132366 states and 152455 transitions. [2023-11-29 00:52:15,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-29 00:52:15,608 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 616 [2023-11-29 00:52:15,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:15,739 INFO L225 Difference]: With dead ends: 132366 [2023-11-29 00:52:15,739 INFO L226 Difference]: Without dead ends: 129780 [2023-11-29 00:52:15,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1369 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1140, Invalid=4116, Unknown=0, NotChecked=0, Total=5256 [2023-11-29 00:52:15,754 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 747 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:15,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 661 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 00:52:15,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129780 states. [2023-11-29 00:52:23,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129780 to 116928. [2023-11-29 00:52:23,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116928 states, 110786 states have (on average 1.110456194826061) internal successors, (123023), 110801 states have internal predecessors, (123023), 6101 states have call successors, (6101), 35 states have call predecessors, (6101), 35 states have return successors, (6101), 6091 states have call predecessors, (6101), 6101 states have call successors, (6101) [2023-11-29 00:52:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116928 states to 116928 states and 135225 transitions. [2023-11-29 00:52:24,076 INFO L78 Accepts]: Start accepts. Automaton has 116928 states and 135225 transitions. Word has length 616 [2023-11-29 00:52:24,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:52:24,076 INFO L495 AbstractCegarLoop]: Abstraction has 116928 states and 135225 transitions. [2023-11-29 00:52:24,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 17.31578947368421) internal successors, (329), 20 states have internal predecessors, (329), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2023-11-29 00:52:24,077 INFO L276 IsEmpty]: Start isEmpty. Operand 116928 states and 135225 transitions. [2023-11-29 00:52:24,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2023-11-29 00:52:24,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:24,093 INFO L195 NwaCegarLoop]: trace histogram [29, 29, 29, 29, 29, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:24,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2023-11-29 00:52:24,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:24,293 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:52:24,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:24,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1529394319, now seen corresponding path program 22 times [2023-11-29 00:52:24,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:24,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961365645] [2023-11-29 00:52:24,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:24,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:24,312 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:52:24,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950718346] [2023-11-29 00:52:24,312 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:52:24,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:24,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:24,313 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:52:24,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 00:52:24,525 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:52:24,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:52:24,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 00:52:24,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:52:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 8082 backedges. 0 proven. 6371 refuted. 0 times theorem prover too weak. 1711 trivial. 0 not checked. [2023-11-29 00:52:25,810 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:52:25,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:25,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961365645] [2023-11-29 00:52:25,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:52:25,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950718346] [2023-11-29 00:52:25,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950718346] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:52:25,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:52:25,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 00:52:25,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389089232] [2023-11-29 00:52:25,900 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:52:25,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 00:52:25,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 00:52:25,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=245, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:52:25,901 INFO L87 Difference]: Start difference. First operand 116928 states and 135225 transitions. Second operand has 19 states, 18 states have (on average 19.38888888888889) internal successors, (349), 19 states have internal predecessors, (349), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2023-11-29 00:52:34,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:34,416 INFO L93 Difference]: Finished difference Result 118537 states and 137077 transitions. [2023-11-29 00:52:34,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 00:52:34,416 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 19.38888888888889) internal successors, (349), 19 states have internal predecessors, (349), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 662 [2023-11-29 00:52:34,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:34,537 INFO L225 Difference]: With dead ends: 118537 [2023-11-29 00:52:34,537 INFO L226 Difference]: Without dead ends: 118536 [2023-11-29 00:52:34,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 657 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=195, Invalid=267, Unknown=0, NotChecked=0, Total=462 [2023-11-29 00:52:34,554 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 35 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:34,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 426 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:52:34,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118536 states. [2023-11-29 00:52:42,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118536 to 116928. [2023-11-29 00:52:42,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116928 states, 110786 states have (on average 1.1104471684147816) internal successors, (123022), 110801 states have internal predecessors, (123022), 6101 states have call successors, (6101), 35 states have call predecessors, (6101), 35 states have return successors, (6101), 6091 states have call predecessors, (6101), 6101 states have call successors, (6101) [2023-11-29 00:52:42,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116928 states to 116928 states and 135224 transitions. [2023-11-29 00:52:42,627 INFO L78 Accepts]: Start accepts. Automaton has 116928 states and 135224 transitions. Word has length 662 [2023-11-29 00:52:42,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:52:42,627 INFO L495 AbstractCegarLoop]: Abstraction has 116928 states and 135224 transitions. [2023-11-29 00:52:42,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 19.38888888888889) internal successors, (349), 19 states have internal predecessors, (349), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2023-11-29 00:52:42,627 INFO L276 IsEmpty]: Start isEmpty. Operand 116928 states and 135224 transitions. [2023-11-29 00:52:42,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2023-11-29 00:52:42,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:52:42,647 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 24, 24, 24, 24, 24, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:52:42,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2023-11-29 00:52:42,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 00:52:42,847 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:52:42,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:52:42,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1167625507, now seen corresponding path program 23 times [2023-11-29 00:52:42,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:52:42,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600970460] [2023-11-29 00:52:42,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:52:42,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:52:42,867 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:52:42,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023279805] [2023-11-29 00:52:42,867 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 00:52:42,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:52:42,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:52:42,868 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:52:42,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 00:52:43,172 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2023-11-29 00:52:43,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:52:43,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 00:52:43,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:52:44,274 INFO L134 CoverageAnalysis]: Checked inductivity of 9613 backedges. 0 proven. 6999 refuted. 0 times theorem prover too weak. 2614 trivial. 0 not checked. [2023-11-29 00:52:44,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:52:44,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:52:44,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600970460] [2023-11-29 00:52:44,381 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:52:44,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023279805] [2023-11-29 00:52:44,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023279805] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:52:44,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:52:44,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 00:52:44,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464045857] [2023-11-29 00:52:44,381 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:52:44,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:52:44,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:52:44,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:52:44,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:52:44,382 INFO L87 Difference]: Start difference. First operand 116928 states and 135224 transitions. Second operand has 14 states, 13 states have (on average 16.846153846153847) internal successors, (219), 14 states have internal predecessors, (219), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 00:52:53,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:52:53,901 INFO L93 Difference]: Finished difference Result 121277 states and 140125 transitions. [2023-11-29 00:52:53,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 00:52:53,902 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 16.846153846153847) internal successors, (219), 14 states have internal predecessors, (219), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 708 [2023-11-29 00:52:53,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:52:54,012 INFO L225 Difference]: With dead ends: 121277 [2023-11-29 00:52:54,012 INFO L226 Difference]: Without dead ends: 120376 [2023-11-29 00:52:54,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2023-11-29 00:52:54,023 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 204 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:52:54,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 763 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:52:54,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120376 states. [2023-11-29 00:53:01,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120376 to 116483. [2023-11-29 00:53:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116483 states, 110364 states have (on average 1.1108332427240768) internal successors, (122596), 110379 states have internal predecessors, (122596), 6078 states have call successors, (6078), 35 states have call predecessors, (6078), 35 states have return successors, (6078), 6068 states have call predecessors, (6078), 6078 states have call successors, (6078) [2023-11-29 00:53:01,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116483 states to 116483 states and 134752 transitions. [2023-11-29 00:53:01,985 INFO L78 Accepts]: Start accepts. Automaton has 116483 states and 134752 transitions. Word has length 708 [2023-11-29 00:53:01,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:01,985 INFO L495 AbstractCegarLoop]: Abstraction has 116483 states and 134752 transitions. [2023-11-29 00:53:01,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 16.846153846153847) internal successors, (219), 14 states have internal predecessors, (219), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-29 00:53:01,985 INFO L276 IsEmpty]: Start isEmpty. Operand 116483 states and 134752 transitions. [2023-11-29 00:53:02,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 709 [2023-11-29 00:53:02,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:02,004 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:02,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2023-11-29 00:53:02,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 00:53:02,205 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:53:02,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:02,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1895691527, now seen corresponding path program 24 times [2023-11-29 00:53:02,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:53:02,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079879504] [2023-11-29 00:53:02,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:02,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:53:02,224 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:53:02,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769270274] [2023-11-29 00:53:02,225 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 00:53:02,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:53:02,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:53:02,226 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:53:02,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 00:53:02,510 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2023-11-29 00:53:02,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:53:02,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-29 00:53:02,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 9289 backedges. 0 proven. 7335 refuted. 0 times theorem prover too weak. 1954 trivial. 0 not checked. [2023-11-29 00:53:03,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:53:08,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:53:08,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079879504] [2023-11-29 00:53:08,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:53:08,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769270274] [2023-11-29 00:53:08,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769270274] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:53:08,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:53:08,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2023-11-29 00:53:08,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965765391] [2023-11-29 00:53:08,276 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:53:08,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:53:08,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:53:08,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:53:08,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=962, Unknown=0, NotChecked=0, Total=1260 [2023-11-29 00:53:08,278 INFO L87 Difference]: Start difference. First operand 116483 states and 134752 transitions. Second operand has 20 states, 19 states have (on average 19.57894736842105) internal successors, (372), 20 states have internal predecessors, (372), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 00:53:17,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:53:17,837 INFO L93 Difference]: Finished difference Result 118933 states and 137571 transitions. [2023-11-29 00:53:17,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 00:53:17,837 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 19.57894736842105) internal successors, (372), 20 states have internal predecessors, (372), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 708 [2023-11-29 00:53:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:53:17,955 INFO L225 Difference]: With dead ends: 118933 [2023-11-29 00:53:17,956 INFO L226 Difference]: Without dead ends: 118932 [2023-11-29 00:53:17,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1322 GetRequests, 1286 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 00:53:17,971 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 51 mSDsluCounter, 3764 mSDsCounter, 0 mSdLazyCounter, 3635 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 4028 SdHoareTripleChecker+Invalid, 3635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:53:17,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 4028 Invalid, 3635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3635 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 00:53:18,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118932 states. [2023-11-29 00:53:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118932 to 116483. [2023-11-29 00:53:25,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116483 states, 110364 states have (on average 1.1108241817984126) internal successors, (122595), 110379 states have internal predecessors, (122595), 6078 states have call successors, (6078), 35 states have call predecessors, (6078), 35 states have return successors, (6078), 6068 states have call predecessors, (6078), 6078 states have call successors, (6078) [2023-11-29 00:53:25,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116483 states to 116483 states and 134751 transitions. [2023-11-29 00:53:25,962 INFO L78 Accepts]: Start accepts. Automaton has 116483 states and 134751 transitions. Word has length 708 [2023-11-29 00:53:25,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:53:25,962 INFO L495 AbstractCegarLoop]: Abstraction has 116483 states and 134751 transitions. [2023-11-29 00:53:25,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 19.57894736842105) internal successors, (372), 20 states have internal predecessors, (372), 17 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2023-11-29 00:53:25,963 INFO L276 IsEmpty]: Start isEmpty. Operand 116483 states and 134751 transitions. [2023-11-29 00:53:25,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2023-11-29 00:53:25,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:53:25,983 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:53:25,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2023-11-29 00:53:26,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:53:26,184 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:53:26,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:53:26,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1319470940, now seen corresponding path program 4 times [2023-11-29 00:53:26,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:53:26,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247792557] [2023-11-29 00:53:26,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:53:26,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:53:26,204 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:53:26,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773359522] [2023-11-29 00:53:26,205 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:53:26,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:53:26,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:53:26,206 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:53:26,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 00:53:26,379 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:53:26,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:53:26,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 1119 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-29 00:53:26,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:53:27,425 INFO L134 CoverageAnalysis]: Checked inductivity of 10827 backedges. 99 proven. 9116 refuted. 0 times theorem prover too weak. 1612 trivial. 0 not checked. [2023-11-29 00:53:27,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:53:29,335 INFO L134 CoverageAnalysis]: Checked inductivity of 10827 backedges. 99 proven. 9116 refuted. 0 times theorem prover too weak. 1612 trivial. 0 not checked. [2023-11-29 00:53:29,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:53:29,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247792557] [2023-11-29 00:53:29,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:53:29,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773359522] [2023-11-29 00:53:29,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773359522] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:53:29,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:53:29,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 74 [2023-11-29 00:53:29,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808719956] [2023-11-29 00:53:29,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:53:29,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-11-29 00:53:29,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:53:29,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-11-29 00:53:29,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1628, Invalid=3922, Unknown=0, NotChecked=0, Total=5550 [2023-11-29 00:53:29,340 INFO L87 Difference]: Start difference. First operand 116483 states and 134751 transitions. Second operand has 75 states, 74 states have (on average 15.486486486486486) internal successors, (1146), 75 states have internal predecessors, (1146), 63 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-11-29 00:54:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:54:00,250 INFO L93 Difference]: Finished difference Result 249532 states and 289159 transitions. [2023-11-29 00:54:00,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2023-11-29 00:54:00,251 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 74 states have (on average 15.486486486486486) internal successors, (1146), 75 states have internal predecessors, (1146), 63 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) Word has length 733 [2023-11-29 00:54:00,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:54:00,531 INFO L225 Difference]: With dead ends: 249532 [2023-11-29 00:54:00,531 INFO L226 Difference]: Without dead ends: 249410 [2023-11-29 00:54:00,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1618 GetRequests, 1391 SyntacticMatches, 0 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18056 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=16798, Invalid=35414, Unknown=0, NotChecked=0, Total=52212 [2023-11-29 00:54:00,562 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1666 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 1863 mSolverCounterSat, 233 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 233 IncrementalHoareTripleChecker+Valid, 1863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:54:00,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 762 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [233 Valid, 1863 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 00:54:00,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249410 states. [2023-11-29 00:54:25,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249410 to 246029. [2023-11-29 00:54:25,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246029 states, 233327 states have (on average 1.0611288020674847) internal successors, (247590), 233361 states have internal predecessors, (247590), 12661 states have call successors, (12661), 35 states have call predecessors, (12661), 35 states have return successors, (12661), 12632 states have call predecessors, (12661), 12661 states have call successors, (12661) [2023-11-29 00:54:25,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246029 states to 246029 states and 272912 transitions. [2023-11-29 00:54:25,985 INFO L78 Accepts]: Start accepts. Automaton has 246029 states and 272912 transitions. Word has length 733 [2023-11-29 00:54:25,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:54:25,986 INFO L495 AbstractCegarLoop]: Abstraction has 246029 states and 272912 transitions. [2023-11-29 00:54:25,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 74 states have (on average 15.486486486486486) internal successors, (1146), 75 states have internal predecessors, (1146), 63 states have call successors, (64), 1 states have call predecessors, (64), 2 states have return successors, (64), 63 states have call predecessors, (64), 63 states have call successors, (64) [2023-11-29 00:54:25,986 INFO L276 IsEmpty]: Start isEmpty. Operand 246029 states and 272912 transitions. [2023-11-29 00:54:26,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2023-11-29 00:54:26,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:54:26,012 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 29, 29, 29, 29, 29, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:54:26,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 00:54:26,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2023-11-29 00:54:26,212 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:54:26,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:54:26,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1182312077, now seen corresponding path program 25 times [2023-11-29 00:54:26,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:54:26,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095931705] [2023-11-29 00:54:26,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:54:26,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:54:26,233 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:54:26,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [130325125] [2023-11-29 00:54:26,233 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 00:54:26,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:54:26,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:54:26,234 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:54:26,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 00:54:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:54:26,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 1157 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 00:54:26,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:54:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 11256 backedges. 6428 proven. 2958 refuted. 0 times theorem prover too weak. 1870 trivial. 0 not checked. [2023-11-29 00:54:27,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:54:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11256 backedges. 5600 proven. 2958 refuted. 0 times theorem prover too weak. 2698 trivial. 0 not checked. [2023-11-29 00:54:27,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:54:27,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095931705] [2023-11-29 00:54:27,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:54:27,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130325125] [2023-11-29 00:54:27,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130325125] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:54:27,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:54:27,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 40 [2023-11-29 00:54:27,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357457516] [2023-11-29 00:54:27,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:54:27,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-11-29 00:54:27,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:54:27,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-11-29 00:54:27,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=1168, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 00:54:27,981 INFO L87 Difference]: Start difference. First operand 246029 states and 272912 transitions. Second operand has 40 states, 40 states have (on average 17.025) internal successors, (681), 40 states have internal predecessors, (681), 38 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2023-11-29 00:54:58,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:54:58,545 INFO L93 Difference]: Finished difference Result 377424 states and 424764 transitions. [2023-11-29 00:54:58,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 00:54:58,546 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 17.025) internal successors, (681), 40 states have internal predecessors, (681), 38 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) Word has length 754 [2023-11-29 00:54:58,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:54:58,831 INFO L225 Difference]: With dead ends: 377424 [2023-11-29 00:54:58,831 INFO L226 Difference]: Without dead ends: 222367 [2023-11-29 00:54:58,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1534 GetRequests, 1458 SyntacticMatches, 10 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1423 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1053, Invalid=3503, Unknown=0, NotChecked=0, Total=4556 [2023-11-29 00:54:58,898 INFO L413 NwaCegarLoop]: 482 mSDtfsCounter, 861 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 4988 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 5005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 4988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:54:58,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 3595 Invalid, 5005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 4988 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-29 00:54:58,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222367 states. [2023-11-29 00:55:20,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222367 to 191447. [2023-11-29 00:55:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191447 states, 181477 states have (on average 1.0727860830849087) internal successors, (194686), 181505 states have internal predecessors, (194686), 9929 states have call successors, (9929), 35 states have call predecessors, (9929), 35 states have return successors, (9929), 9906 states have call predecessors, (9929), 9929 states have call successors, (9929) [2023-11-29 00:55:20,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191447 states to 191447 states and 214544 transitions. [2023-11-29 00:55:20,893 INFO L78 Accepts]: Start accepts. Automaton has 191447 states and 214544 transitions. Word has length 754 [2023-11-29 00:55:20,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:55:20,893 INFO L495 AbstractCegarLoop]: Abstraction has 191447 states and 214544 transitions. [2023-11-29 00:55:20,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 17.025) internal successors, (681), 40 states have internal predecessors, (681), 38 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 38 states have call predecessors, (40), 38 states have call successors, (40) [2023-11-29 00:55:20,893 INFO L276 IsEmpty]: Start isEmpty. Operand 191447 states and 214544 transitions. [2023-11-29 00:55:20,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2023-11-29 00:55:20,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:55:20,914 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 27, 27, 27, 27, 27, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:55:20,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2023-11-29 00:55:21,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-11-29 00:55:21,115 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:55:21,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:55:21,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1357086431, now seen corresponding path program 26 times [2023-11-29 00:55:21,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:55:21,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223010443] [2023-11-29 00:55:21,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:55:21,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:55:21,136 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:55:21,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [619626623] [2023-11-29 00:55:21,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:55:21,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:55:21,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:55:21,138 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:55:21,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 00:55:21,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:55:21,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:55:21,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 00:55:21,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:55:21,822 INFO L134 CoverageAnalysis]: Checked inductivity of 11064 backedges. 6511 proven. 1894 refuted. 0 times theorem prover too weak. 2659 trivial. 0 not checked. [2023-11-29 00:55:21,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:55:22,288 INFO L134 CoverageAnalysis]: Checked inductivity of 11064 backedges. 4799 proven. 2646 refuted. 0 times theorem prover too weak. 3619 trivial. 0 not checked. [2023-11-29 00:55:22,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:55:22,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223010443] [2023-11-29 00:55:22,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:55:22,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619626623] [2023-11-29 00:55:22,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619626623] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:55:22,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:55:22,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 22 [2023-11-29 00:55:22,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525886751] [2023-11-29 00:55:22,290 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:55:22,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 00:55:22,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:55:22,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 00:55:22,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2023-11-29 00:55:22,292 INFO L87 Difference]: Start difference. First operand 191447 states and 214544 transitions. Second operand has 22 states, 22 states have (on average 17.90909090909091) internal successors, (394), 22 states have internal predecessors, (394), 22 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-29 00:55:46,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:55:46,117 INFO L93 Difference]: Finished difference Result 210917 states and 235520 transitions. [2023-11-29 00:55:46,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:55:46,118 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 17.90909090909091) internal successors, (394), 22 states have internal predecessors, (394), 22 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) Word has length 754 [2023-11-29 00:55:46,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:55:46,324 INFO L225 Difference]: With dead ends: 210917 [2023-11-29 00:55:46,324 INFO L226 Difference]: Without dead ends: 192042 [2023-11-29 00:55:46,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1513 GetRequests, 1478 SyntacticMatches, 8 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:55:46,349 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 191 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:55:46,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1362 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 00:55:46,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192042 states. [2023-11-29 00:56:06,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192042 to 185558. [2023-11-29 00:56:06,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185558 states, 175893 states have (on average 1.0740165896311962) internal successors, (188912), 175915 states have internal predecessors, (188912), 9624 states have call successors, (9624), 35 states have call predecessors, (9624), 35 states have return successors, (9624), 9607 states have call predecessors, (9624), 9624 states have call successors, (9624) [2023-11-29 00:56:07,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185558 states to 185558 states and 208160 transitions. [2023-11-29 00:56:07,227 INFO L78 Accepts]: Start accepts. Automaton has 185558 states and 208160 transitions. Word has length 754 [2023-11-29 00:56:07,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:56:07,228 INFO L495 AbstractCegarLoop]: Abstraction has 185558 states and 208160 transitions. [2023-11-29 00:56:07,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 17.90909090909091) internal successors, (394), 22 states have internal predecessors, (394), 22 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2023-11-29 00:56:07,228 INFO L276 IsEmpty]: Start isEmpty. Operand 185558 states and 208160 transitions. [2023-11-29 00:56:07,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 755 [2023-11-29 00:56:07,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:56:07,247 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:56:07,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-29 00:56:07,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-11-29 00:56:07,448 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:56:07,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:56:07,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1668761629, now seen corresponding path program 27 times [2023-11-29 00:56:07,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:56:07,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606503117] [2023-11-29 00:56:07,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:56:07,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:56:07,470 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:56:07,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984615665] [2023-11-29 00:56:07,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:56:07,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:56:07,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:56:07,471 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:56:07,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 00:56:07,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2023-11-29 00:56:07,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:56:07,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 00:56:07,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:56:08,772 INFO L134 CoverageAnalysis]: Checked inductivity of 10580 backedges. 90 proven. 8385 refuted. 0 times theorem prover too weak. 2105 trivial. 0 not checked. [2023-11-29 00:56:08,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:56:08,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:56:08,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606503117] [2023-11-29 00:56:08,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:56:08,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984615665] [2023-11-29 00:56:08,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984615665] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:56:08,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:56:08,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2023-11-29 00:56:08,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404919978] [2023-11-29 00:56:08,970 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:56:08,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 00:56:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:56:08,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 00:56:08,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2023-11-29 00:56:08,972 INFO L87 Difference]: Start difference. First operand 185558 states and 208160 transitions. Second operand has 25 states, 24 states have (on average 17.125) internal successors, (411), 25 states have internal predecessors, (411), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-29 00:56:42,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:56:42,692 INFO L93 Difference]: Finished difference Result 209467 states and 234084 transitions. [2023-11-29 00:56:42,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-11-29 00:56:42,692 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 17.125) internal successors, (411), 25 states have internal predecessors, (411), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) Word has length 754 [2023-11-29 00:56:42,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:56:43,056 INFO L225 Difference]: With dead ends: 209467 [2023-11-29 00:56:43,056 INFO L226 Difference]: Without dead ends: 209466 [2023-11-29 00:56:43,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 839 GetRequests, 742 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2907 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2114, Invalid=7588, Unknown=0, NotChecked=0, Total=9702 [2023-11-29 00:56:43,085 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 1491 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 900 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:56:43,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 900 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 00:56:43,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209466 states. [2023-11-29 00:57:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209466 to 185558. [2023-11-29 00:57:03,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185558 states, 175893 states have (on average 1.074010904356626) internal successors, (188911), 175915 states have internal predecessors, (188911), 9624 states have call successors, (9624), 35 states have call predecessors, (9624), 35 states have return successors, (9624), 9607 states have call predecessors, (9624), 9624 states have call successors, (9624) [2023-11-29 00:57:03,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185558 states to 185558 states and 208159 transitions. [2023-11-29 00:57:03,959 INFO L78 Accepts]: Start accepts. Automaton has 185558 states and 208159 transitions. Word has length 754 [2023-11-29 00:57:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:57:03,959 INFO L495 AbstractCegarLoop]: Abstraction has 185558 states and 208159 transitions. [2023-11-29 00:57:03,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 17.125) internal successors, (411), 25 states have internal predecessors, (411), 19 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-29 00:57:03,960 INFO L276 IsEmpty]: Start isEmpty. Operand 185558 states and 208159 transitions. [2023-11-29 00:57:03,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2023-11-29 00:57:03,983 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:57:03,983 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:57:03,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 00:57:04,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2023-11-29 00:57:04,184 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:57:04,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:57:04,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1659460847, now seen corresponding path program 3 times [2023-11-29 00:57:04,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:57:04,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702403571] [2023-11-29 00:57:04,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:57:04,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:57:04,209 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:57:04,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799650895] [2023-11-29 00:57:04,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:57:04,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:57:04,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:57:04,210 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:57:04,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 00:57:04,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 31 check-sat command(s) [2023-11-29 00:57:04,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:57:04,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 71 conjunts are in the unsatisfiable core [2023-11-29 00:57:04,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:57:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 11887 backedges. 0 proven. 11883 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 00:57:06,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:57:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 11887 backedges. 0 proven. 9639 refuted. 0 times theorem prover too weak. 2248 trivial. 0 not checked. [2023-11-29 00:57:09,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:57:09,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702403571] [2023-11-29 00:57:09,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:57:09,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799650895] [2023-11-29 00:57:09,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799650895] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:57:09,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:57:09,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 72] total 102 [2023-11-29 00:57:09,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493160692] [2023-11-29 00:57:09,147 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:57:09,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2023-11-29 00:57:09,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:57:09,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2023-11-29 00:57:09,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2651, Invalid=7651, Unknown=0, NotChecked=0, Total=10302 [2023-11-29 00:57:09,150 INFO L87 Difference]: Start difference. First operand 185558 states and 208159 transitions. Second operand has 102 states, 102 states have (on average 10.784313725490197) internal successors, (1100), 102 states have internal predecessors, (1100), 50 states have call successors, (72), 36 states have call predecessors, (72), 36 states have return successors, (72), 50 states have call predecessors, (72), 50 states have call successors, (72) [2023-11-29 00:57:36,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:57:36,706 INFO L93 Difference]: Finished difference Result 203010 states and 226542 transitions. [2023-11-29 00:57:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 152 states. [2023-11-29 00:57:36,707 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 10.784313725490197) internal successors, (1100), 102 states have internal predecessors, (1100), 50 states have call successors, (72), 36 states have call predecessors, (72), 36 states have return successors, (72), 50 states have call predecessors, (72), 50 states have call successors, (72) Word has length 800 [2023-11-29 00:57:36,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:57:36,933 INFO L225 Difference]: With dead ends: 203010 [2023-11-29 00:57:36,933 INFO L226 Difference]: Without dead ends: 203007 [2023-11-29 00:57:36,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1697 GetRequests, 1458 SyntacticMatches, 40 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10739 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=12749, Invalid=27451, Unknown=0, NotChecked=0, Total=40200 [2023-11-29 00:57:36,954 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 817 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 817 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:57:36,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [817 Valid, 1519 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:57:37,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203007 states. [2023-11-29 00:58:01,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203007 to 201770. [2023-11-29 00:58:01,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201770 states, 191227 states have (on average 1.0681912073085913) internal successors, (204267), 191324 states have internal predecessors, (204267), 10486 states have call successors, (10486), 51 states have call predecessors, (10486), 51 states have return successors, (10486), 10394 states have call predecessors, (10486), 10486 states have call successors, (10486) [2023-11-29 00:58:01,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201770 states to 201770 states and 225239 transitions. [2023-11-29 00:58:01,552 INFO L78 Accepts]: Start accepts. Automaton has 201770 states and 225239 transitions. Word has length 800 [2023-11-29 00:58:01,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:58:01,553 INFO L495 AbstractCegarLoop]: Abstraction has 201770 states and 225239 transitions. [2023-11-29 00:58:01,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 10.784313725490197) internal successors, (1100), 102 states have internal predecessors, (1100), 50 states have call successors, (72), 36 states have call predecessors, (72), 36 states have return successors, (72), 50 states have call predecessors, (72), 50 states have call successors, (72) [2023-11-29 00:58:01,553 INFO L276 IsEmpty]: Start isEmpty. Operand 201770 states and 225239 transitions. [2023-11-29 00:58:01,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2023-11-29 00:58:01,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:58:01,578 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:58:01,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 00:58:01,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:58:01,779 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:58:01,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:58:01,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1659460429, now seen corresponding path program 28 times [2023-11-29 00:58:01,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:58:01,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795215358] [2023-11-29 00:58:01,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:58:01,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:58:01,978 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:58:01,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [597073831] [2023-11-29 00:58:01,978 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 00:58:01,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:58:01,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:58:01,979 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:58:01,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 00:58:02,203 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 00:58:02,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:58:02,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-29 00:58:02,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:58:03,757 INFO L134 CoverageAnalysis]: Checked inductivity of 11955 backedges. 0 proven. 9467 refuted. 0 times theorem prover too weak. 2488 trivial. 0 not checked. [2023-11-29 00:58:03,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:58:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 11955 backedges. 0 proven. 9467 refuted. 0 times theorem prover too weak. 2488 trivial. 0 not checked. [2023-11-29 00:58:09,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:58:09,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795215358] [2023-11-29 00:58:09,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:58:09,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597073831] [2023-11-29 00:58:09,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597073831] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:58:09,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:58:09,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2023-11-29 00:58:09,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675230930] [2023-11-29 00:58:09,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:58:09,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-11-29 00:58:09,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:58:09,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-11-29 00:58:09,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=411, Invalid=1311, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 00:58:09,640 INFO L87 Difference]: Start difference. First operand 201770 states and 225239 transitions. Second operand has 42 states, 41 states have (on average 20.21951219512195) internal successors, (829), 42 states have internal predecessors, (829), 37 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-11-29 00:58:48,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:58:48,054 INFO L93 Difference]: Finished difference Result 223385 states and 249583 transitions. [2023-11-29 00:58:48,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-11-29 00:58:48,054 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 20.21951219512195) internal successors, (829), 42 states have internal predecessors, (829), 37 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) Word has length 800 [2023-11-29 00:58:48,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:58:48,318 INFO L225 Difference]: With dead ends: 223385 [2023-11-29 00:58:48,318 INFO L226 Difference]: Without dead ends: 223361 [2023-11-29 00:58:48,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1656 GetRequests, 1558 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1450 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2762, Invalid=7138, Unknown=0, NotChecked=0, Total=9900 [2023-11-29 00:58:48,346 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 989 mSDsluCounter, 4549 mSDsCounter, 0 mSdLazyCounter, 7200 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 4791 SdHoareTripleChecker+Invalid, 7326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 7200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:58:48,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 4791 Invalid, 7326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 7200 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 00:58:48,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223361 states. [2023-11-29 00:59:14,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223361 to 201770. [2023-11-29 00:59:14,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201770 states, 191227 states have (on average 1.067966343664859) internal successors, (204224), 191324 states have internal predecessors, (204224), 10486 states have call successors, (10486), 51 states have call predecessors, (10486), 51 states have return successors, (10486), 10394 states have call predecessors, (10486), 10486 states have call successors, (10486) [2023-11-29 00:59:14,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201770 states to 201770 states and 225196 transitions. [2023-11-29 00:59:14,560 INFO L78 Accepts]: Start accepts. Automaton has 201770 states and 225196 transitions. Word has length 800 [2023-11-29 00:59:14,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:59:14,561 INFO L495 AbstractCegarLoop]: Abstraction has 201770 states and 225196 transitions. [2023-11-29 00:59:14,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 20.21951219512195) internal successors, (829), 42 states have internal predecessors, (829), 37 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-11-29 00:59:14,561 INFO L276 IsEmpty]: Start isEmpty. Operand 201770 states and 225196 transitions. [2023-11-29 00:59:14,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2023-11-29 00:59:14,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:59:14,589 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 36, 36, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 30, 30, 30, 30, 30, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:59:14,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 00:59:14,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-29 00:59:14,790 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 00:59:14,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:59:14,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2041357082, now seen corresponding path program 29 times [2023-11-29 00:59:14,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:59:14,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440852467] [2023-11-29 00:59:14,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:59:14,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:59:14,812 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:59:14,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332836278] [2023-11-29 00:59:14,812 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 00:59:14,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:59:14,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:59:14,813 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:59:14,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca41c566-2714-40f4-94e0-8d25c63d81a7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 00:59:15,331 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 35 check-sat command(s) [2023-11-29 00:59:15,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:59:15,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 00:59:15,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:59:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 13299 backedges. 0 proven. 9415 refuted. 0 times theorem prover too weak. 3884 trivial. 0 not checked. [2023-11-29 00:59:16,637 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:59:18,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:59:18,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440852467] [2023-11-29 00:59:18,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:59:18,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332836278] [2023-11-29 00:59:18,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332836278] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:59:18,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:59:18,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 00:59:18,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678595123] [2023-11-29 00:59:18,306 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:59:18,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 00:59:18,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:59:18,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 00:59:18,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2023-11-29 00:59:18,308 INFO L87 Difference]: Start difference. First operand 201770 states and 225196 transitions. Second operand has 15 states, 14 states have (on average 16.571428571428573) internal successors, (232), 15 states have internal predecessors, (232), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13)