./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/rev-3-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/rev-3-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC --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 fe3cf414f0e241a9a4e73e59647cf6619ea50b905df4a1c2a404b3413992b780 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:48:19,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:48:19,186 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 00:48:19,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:48:19,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:48:19,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:48:19,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:48:19,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:48:19,236 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:48:19,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:48:19,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:48:19,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:48:19,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:48:19,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:48:19,240 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:48:19,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:48:19,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:48:19,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:48:19,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:48:19,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:48:19,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:48:19,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:48:19,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:48:19,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:48:19,241 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:48:19,241 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:48:19,242 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:48:19,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:48:19,242 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:48:19,242 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:48:19,242 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:48:19,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:48:19,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:48:19,242 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:48:19,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:19,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:48:19,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:48:19,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:48:19,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:48:19,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:19,243 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:48:19,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:48:19,243 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:48:19,243 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:48:19,243 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:48:19,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:48:19,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:48:19,245 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:48:19,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:48:19,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:48:19,246 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC 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 -> fe3cf414f0e241a9a4e73e59647cf6619ea50b905df4a1c2a404b3413992b780 [2024-11-24 00:48:19,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:48:19,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:48:19,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:48:19,590 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:48:19,590 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:48:19,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/array-multidimensional/rev-3-u.c [2024-11-24 00:48:22,611 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/data/5aafa7080/b4959c440fb749ee99263775ed2aceee/FLAG21a2f9611 [2024-11-24 00:48:22,916 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:48:22,917 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/sv-benchmarks/c/array-multidimensional/rev-3-u.c [2024-11-24 00:48:22,926 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/data/5aafa7080/b4959c440fb749ee99263775ed2aceee/FLAG21a2f9611 [2024-11-24 00:48:22,952 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/data/5aafa7080/b4959c440fb749ee99263775ed2aceee [2024-11-24 00:48:22,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:48:22,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:48:22,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:48:22,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:48:22,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:48:22,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:48:22" (1/1) ... [2024-11-24 00:48:22,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f56224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:22, skipping insertion in model container [2024-11-24 00:48:22,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:48:22" (1/1) ... [2024-11-24 00:48:23,012 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:48:23,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:48:23,175 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:48:23,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:48:23,210 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:48:23,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23 WrapperNode [2024-11-24 00:48:23,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:48:23,212 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:48:23,212 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:48:23,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:48:23,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,244 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 140 [2024-11-24 00:48:23,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:48:23,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:48:23,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:48:23,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:48:23,253 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,253 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,255 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,268 INFO L175 MemorySlicer]: Split 7 memory accesses to 3 slices as follows [2, 3, 2]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-24 00:48:23,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,277 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,285 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:48:23,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:48:23,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:48:23,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:48:23,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (1/1) ... [2024-11-24 00:48:23,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:48:23,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:23,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:48:23,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:48:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:48:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:48:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:48:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:48:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:48:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:48:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:48:23,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:48:23,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:48:23,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:48:23,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:48:23,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:48:23,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:48:23,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:48:23,441 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:48:23,443 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:48:23,767 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-11-24 00:48:23,767 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:48:23,790 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:48:23,790 INFO L312 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-24 00:48:23,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:23 BoogieIcfgContainer [2024-11-24 00:48:23,791 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:48:23,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:48:23,793 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:48:23,798 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:48:23,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:48:22" (1/3) ... [2024-11-24 00:48:23,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb74b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:48:23, skipping insertion in model container [2024-11-24 00:48:23,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:48:23" (2/3) ... [2024-11-24 00:48:23,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb74b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:48:23, skipping insertion in model container [2024-11-24 00:48:23,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:48:23" (3/3) ... [2024-11-24 00:48:23,801 INFO L128 eAbstractionObserver]: Analyzing ICFG rev-3-u.c [2024-11-24 00:48:23,816 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:48:23,817 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rev-3-u.c that has 1 procedures, 113 locations, 1 initial locations, 9 loop locations, and 42 error locations. [2024-11-24 00:48:23,868 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:48:23,880 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d5ec42f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:48:23,881 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-24 00:48:23,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 70 states have (on average 1.8714285714285714) internal successors, (131), 112 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:23,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 00:48:23,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:23,890 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-24 00:48:23,890 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:23,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:23,895 INFO L85 PathProgramCache]: Analyzing trace with hash 889601250, now seen corresponding path program 1 times [2024-11-24 00:48:23,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:23,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898570558] [2024-11-24 00:48:23,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:23,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:24,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:48:24,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:24,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898570558] [2024-11-24 00:48:24,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898570558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:24,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:24,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:48:24,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186327660] [2024-11-24 00:48:24,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:24,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:24,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:24,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:24,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:24,210 INFO L87 Difference]: Start difference. First operand has 113 states, 70 states have (on average 1.8714285714285714) internal successors, (131), 112 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:24,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:24,597 INFO L93 Difference]: Finished difference Result 279 states and 358 transitions. [2024-11-24 00:48:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:24,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-24 00:48:24,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:24,611 INFO L225 Difference]: With dead ends: 279 [2024-11-24 00:48:24,612 INFO L226 Difference]: Without dead ends: 162 [2024-11-24 00:48:24,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:24,618 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 203 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:24,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 81 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:48:24,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-24 00:48:24,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2024-11-24 00:48:24,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 114 states have (on average 1.6929824561403508) internal successors, (193), 155 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:24,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 193 transitions. [2024-11-24 00:48:24,683 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 193 transitions. Word has length 6 [2024-11-24 00:48:24,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:24,683 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 193 transitions. [2024-11-24 00:48:24,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:24,684 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 193 transitions. [2024-11-24 00:48:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 00:48:24,684 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:24,684 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:24,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:48:24,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:24,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:24,686 INFO L85 PathProgramCache]: Analyzing trace with hash -2134908750, now seen corresponding path program 1 times [2024-11-24 00:48:24,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:24,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244887534] [2024-11-24 00:48:24,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:24,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:24,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:48:24,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:24,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244887534] [2024-11-24 00:48:24,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244887534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:24,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:24,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:48:24,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263910140] [2024-11-24 00:48:24,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:24,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:24,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:24,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:24,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:24,816 INFO L87 Difference]: Start difference. First operand 156 states and 193 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:25,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:25,011 INFO L93 Difference]: Finished difference Result 252 states and 329 transitions. [2024-11-24 00:48:25,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:25,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-24 00:48:25,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:25,014 INFO L225 Difference]: With dead ends: 252 [2024-11-24 00:48:25,014 INFO L226 Difference]: Without dead ends: 246 [2024-11-24 00:48:25,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:25,018 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 48 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:25,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 161 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:25,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-24 00:48:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 230. [2024-11-24 00:48:25,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 188 states have (on average 1.6861702127659575) internal successors, (317), 229 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:25,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 317 transitions. [2024-11-24 00:48:25,053 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 317 transitions. Word has length 9 [2024-11-24 00:48:25,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:25,053 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 317 transitions. [2024-11-24 00:48:25,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:25,054 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 317 transitions. [2024-11-24 00:48:25,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-24 00:48:25,054 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:25,054 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:25,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:48:25,054 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:25,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:25,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1590913147, now seen corresponding path program 1 times [2024-11-24 00:48:25,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:25,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117240311] [2024-11-24 00:48:25,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:25,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:25,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:48:25,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:25,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117240311] [2024-11-24 00:48:25,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117240311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:25,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:25,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:25,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537592382] [2024-11-24 00:48:25,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:25,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:25,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:25,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:25,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:25,166 INFO L87 Difference]: Start difference. First operand 230 states and 317 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:25,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:25,328 INFO L93 Difference]: Finished difference Result 458 states and 632 transitions. [2024-11-24 00:48:25,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:25,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-24 00:48:25,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:25,332 INFO L225 Difference]: With dead ends: 458 [2024-11-24 00:48:25,332 INFO L226 Difference]: Without dead ends: 262 [2024-11-24 00:48:25,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:25,336 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 17 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:25,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 140 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:25,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-24 00:48:25,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 258. [2024-11-24 00:48:25,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 216 states have (on average 1.6481481481481481) internal successors, (356), 257 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 356 transitions. [2024-11-24 00:48:25,362 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 356 transitions. Word has length 10 [2024-11-24 00:48:25,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:25,362 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 356 transitions. [2024-11-24 00:48:25,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:25,363 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 356 transitions. [2024-11-24 00:48:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-24 00:48:25,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:25,365 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:25,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:48:25,365 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:25,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:25,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1740315052, now seen corresponding path program 1 times [2024-11-24 00:48:25,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:25,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640276554] [2024-11-24 00:48:25,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:25,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:48:25,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:25,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640276554] [2024-11-24 00:48:25,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640276554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:25,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005672088] [2024-11-24 00:48:25,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:25,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:25,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:25,483 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:25,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:48:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:25,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:48:25,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:48:25,611 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:48:25,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005672088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:25,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:48:25,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-24 00:48:25,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456614942] [2024-11-24 00:48:25,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:25,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:25,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:25,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:25,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:25,612 INFO L87 Difference]: Start difference. First operand 258 states and 356 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:25,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:25,766 INFO L93 Difference]: Finished difference Result 274 states and 356 transitions. [2024-11-24 00:48:25,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:25,767 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-24 00:48:25,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:25,768 INFO L225 Difference]: With dead ends: 274 [2024-11-24 00:48:25,769 INFO L226 Difference]: Without dead ends: 271 [2024-11-24 00:48:25,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:48:25,770 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 95 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:25,773 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 189 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:25,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-24 00:48:25,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 255. [2024-11-24 00:48:25,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 216 states have (on average 1.6111111111111112) internal successors, (348), 254 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 348 transitions. [2024-11-24 00:48:25,802 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 348 transitions. Word has length 13 [2024-11-24 00:48:25,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:25,802 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 348 transitions. [2024-11-24 00:48:25,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:25,802 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 348 transitions. [2024-11-24 00:48:25,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-24 00:48:25,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:25,803 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:25,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:48:26,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:26,004 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:26,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash -514212893, now seen corresponding path program 1 times [2024-11-24 00:48:26,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:26,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778560919] [2024-11-24 00:48:26,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:26,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:26,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:48:26,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:26,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778560919] [2024-11-24 00:48:26,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778560919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:26,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:26,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:48:26,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67558024] [2024-11-24 00:48:26,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:26,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:26,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:26,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:26,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:26,100 INFO L87 Difference]: Start difference. First operand 255 states and 348 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:26,329 INFO L93 Difference]: Finished difference Result 496 states and 679 transitions. [2024-11-24 00:48:26,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:26,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-24 00:48:26,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:26,331 INFO L225 Difference]: With dead ends: 496 [2024-11-24 00:48:26,331 INFO L226 Difference]: Without dead ends: 255 [2024-11-24 00:48:26,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:26,333 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 153 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:26,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 71 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:26,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-24 00:48:26,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2024-11-24 00:48:26,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 216 states have (on average 1.537037037037037) internal successors, (332), 254 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:26,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 332 transitions. [2024-11-24 00:48:26,379 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 332 transitions. Word has length 13 [2024-11-24 00:48:26,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:26,379 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 332 transitions. [2024-11-24 00:48:26,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:26,379 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 332 transitions. [2024-11-24 00:48:26,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-24 00:48:26,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:26,380 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:26,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:48:26,380 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:26,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:26,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1884808170, now seen corresponding path program 1 times [2024-11-24 00:48:26,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:26,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113327537] [2024-11-24 00:48:26,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:26,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:26,463 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:48:26,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:26,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113327537] [2024-11-24 00:48:26,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113327537] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:26,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46095387] [2024-11-24 00:48:26,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:26,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:26,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:26,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:26,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:48:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:26,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:48:26,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:26,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:48:26,555 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:48:26,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46095387] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:26,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:48:26,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-24 00:48:26,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316133161] [2024-11-24 00:48:26,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:26,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:48:26,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:26,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:48:26,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:48:26,602 INFO L87 Difference]: Start difference. First operand 255 states and 332 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:26,860 INFO L93 Difference]: Finished difference Result 568 states and 758 transitions. [2024-11-24 00:48:26,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:48:26,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-24 00:48:26,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:26,863 INFO L225 Difference]: With dead ends: 568 [2024-11-24 00:48:26,863 INFO L226 Difference]: Without dead ends: 565 [2024-11-24 00:48:26,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:48:26,866 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 235 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:26,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 386 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:26,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-24 00:48:26,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 501. [2024-11-24 00:48:26,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 462 states have (on average 1.5887445887445888) internal successors, (734), 500 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:26,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 734 transitions. [2024-11-24 00:48:26,896 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 734 transitions. Word has length 14 [2024-11-24 00:48:26,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:26,896 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 734 transitions. [2024-11-24 00:48:26,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:26,896 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 734 transitions. [2024-11-24 00:48:26,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-24 00:48:26,897 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:26,897 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:26,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:27,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-24 00:48:27,099 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:27,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:27,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1607484323, now seen corresponding path program 1 times [2024-11-24 00:48:27,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:27,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705328005] [2024-11-24 00:48:27,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:27,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:27,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:48:27,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:27,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705328005] [2024-11-24 00:48:27,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705328005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:27,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339682338] [2024-11-24 00:48:27,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:27,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:27,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:27,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:27,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:48:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:27,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:48:27,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:27,349 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:48:27,349 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:27,410 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:48:27,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339682338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:27,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:48:27,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 10 [2024-11-24 00:48:27,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364032648] [2024-11-24 00:48:27,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:27,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:48:27,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:27,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:48:27,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:48:27,412 INFO L87 Difference]: Start difference. First operand 501 states and 734 transitions. Second operand has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:28,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:28,448 INFO L93 Difference]: Finished difference Result 984 states and 1437 transitions. [2024-11-24 00:48:28,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:48:28,449 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-24 00:48:28,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:28,451 INFO L225 Difference]: With dead ends: 984 [2024-11-24 00:48:28,452 INFO L226 Difference]: Without dead ends: 509 [2024-11-24 00:48:28,452 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:48:28,457 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 923 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:28,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 139 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:48:28,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-24 00:48:28,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 494. [2024-11-24 00:48:28,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 462 states have (on average 1.4588744588744589) internal successors, (674), 493 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:28,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 674 transitions. [2024-11-24 00:48:28,491 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 674 transitions. Word has length 21 [2024-11-24 00:48:28,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:28,491 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 674 transitions. [2024-11-24 00:48:28,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:28,491 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 674 transitions. [2024-11-24 00:48:28,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-24 00:48:28,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:28,492 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:28,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:28,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-24 00:48:28,693 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:28,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:28,693 INFO L85 PathProgramCache]: Analyzing trace with hash 184442088, now seen corresponding path program 2 times [2024-11-24 00:48:28,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:28,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043053650] [2024-11-24 00:48:28,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:48:28,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:28,709 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:48:28,710 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:48:28,753 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:48:28,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:28,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043053650] [2024-11-24 00:48:28,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043053650] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:28,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416821253] [2024-11-24 00:48:28,754 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:48:28,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:28,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:28,760 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:28,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:48:28,825 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:48:28,826 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:48:28,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:48:28,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:28,880 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:48:28,880 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 00:48:28,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416821253] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:28,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:48:28,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-24 00:48:28,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410466485] [2024-11-24 00:48:28,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:28,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:48:28,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:28,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:48:28,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:48:28,946 INFO L87 Difference]: Start difference. First operand 494 states and 674 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:29,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:29,099 INFO L93 Difference]: Finished difference Result 494 states and 674 transitions. [2024-11-24 00:48:29,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:48:29,100 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-24 00:48:29,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:29,102 INFO L225 Difference]: With dead ends: 494 [2024-11-24 00:48:29,102 INFO L226 Difference]: Without dead ends: 491 [2024-11-24 00:48:29,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:48:29,103 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 170 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:29,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 63 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:29,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-24 00:48:29,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 417. [2024-11-24 00:48:29,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 388 states have (on average 1.4329896907216495) internal successors, (556), 416 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:29,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 556 transitions. [2024-11-24 00:48:29,135 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 556 transitions. Word has length 26 [2024-11-24 00:48:29,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:29,135 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 556 transitions. [2024-11-24 00:48:29,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:29,135 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 556 transitions. [2024-11-24 00:48:29,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-24 00:48:29,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:29,136 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:29,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:29,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-24 00:48:29,337 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:29,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:29,337 INFO L85 PathProgramCache]: Analyzing trace with hash 464862065, now seen corresponding path program 1 times [2024-11-24 00:48:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:29,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316936291] [2024-11-24 00:48:29,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:29,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 00:48:29,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:29,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316936291] [2024-11-24 00:48:29,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316936291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:29,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:29,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:48:29,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486568808] [2024-11-24 00:48:29,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:29,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:48:29,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:29,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:48:29,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:29,395 INFO L87 Difference]: Start difference. First operand 417 states and 556 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:29,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:29,540 INFO L93 Difference]: Finished difference Result 417 states and 556 transitions. [2024-11-24 00:48:29,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:48:29,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-24 00:48:29,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:29,543 INFO L225 Difference]: With dead ends: 417 [2024-11-24 00:48:29,544 INFO L226 Difference]: Without dead ends: 413 [2024-11-24 00:48:29,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:48:29,544 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 61 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:29,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 32 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:29,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-24 00:48:29,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2024-11-24 00:48:29,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 388 states have (on average 1.3505154639175259) internal successors, (524), 412 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:29,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 524 transitions. [2024-11-24 00:48:29,578 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 524 transitions. Word has length 36 [2024-11-24 00:48:29,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:29,580 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 524 transitions. [2024-11-24 00:48:29,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:29,580 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 524 transitions. [2024-11-24 00:48:29,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-24 00:48:29,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:29,583 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:29,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:48:29,584 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:29,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:29,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1525822244, now seen corresponding path program 1 times [2024-11-24 00:48:29,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:29,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551759887] [2024-11-24 00:48:29,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:29,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:29,719 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 00:48:29,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:29,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551759887] [2024-11-24 00:48:29,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551759887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:29,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:29,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:29,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265055636] [2024-11-24 00:48:29,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:29,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:29,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:29,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:29,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:29,721 INFO L87 Difference]: Start difference. First operand 413 states and 524 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:29,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:29,953 INFO L93 Difference]: Finished difference Result 716 states and 941 transitions. [2024-11-24 00:48:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:29,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-24 00:48:29,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:29,957 INFO L225 Difference]: With dead ends: 716 [2024-11-24 00:48:29,957 INFO L226 Difference]: Without dead ends: 708 [2024-11-24 00:48:29,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:29,958 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 127 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:29,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 58 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:29,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-24 00:48:29,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 705. [2024-11-24 00:48:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 680 states have (on average 1.3308823529411764) internal successors, (905), 704 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 905 transitions. [2024-11-24 00:48:30,003 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 905 transitions. Word has length 37 [2024-11-24 00:48:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:30,004 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 905 transitions. [2024-11-24 00:48:30,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 905 transitions. [2024-11-24 00:48:30,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-24 00:48:30,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:30,005 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:30,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:48:30,005 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:30,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:30,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1658056424, now seen corresponding path program 1 times [2024-11-24 00:48:30,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:30,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669598897] [2024-11-24 00:48:30,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:30,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:30,141 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 00:48:30,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:30,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669598897] [2024-11-24 00:48:30,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669598897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:30,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:30,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:30,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492314842] [2024-11-24 00:48:30,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:30,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:30,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:30,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:30,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:30,144 INFO L87 Difference]: Start difference. First operand 705 states and 905 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:30,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:30,358 INFO L93 Difference]: Finished difference Result 709 states and 905 transitions. [2024-11-24 00:48:30,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:30,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2024-11-24 00:48:30,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:30,363 INFO L225 Difference]: With dead ends: 709 [2024-11-24 00:48:30,363 INFO L226 Difference]: Without dead ends: 705 [2024-11-24 00:48:30,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:30,365 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 104 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:30,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 60 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:30,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-24 00:48:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2024-11-24 00:48:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 680 states have (on average 1.2838235294117648) internal successors, (873), 704 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:30,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 873 transitions. [2024-11-24 00:48:30,408 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 873 transitions. Word has length 41 [2024-11-24 00:48:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:30,409 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 873 transitions. [2024-11-24 00:48:30,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:30,409 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 873 transitions. [2024-11-24 00:48:30,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-24 00:48:30,411 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:30,411 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:30,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:48:30,412 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:30,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:30,412 INFO L85 PathProgramCache]: Analyzing trace with hash -399643988, now seen corresponding path program 1 times [2024-11-24 00:48:30,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:30,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575933813] [2024-11-24 00:48:30,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:30,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 00:48:30,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:30,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575933813] [2024-11-24 00:48:30,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575933813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:48:30,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:48:30,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:48:30,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627961211] [2024-11-24 00:48:30,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:48:30,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:48:30,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:30,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:48:30,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:30,532 INFO L87 Difference]: Start difference. First operand 705 states and 873 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:30,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:30,734 INFO L93 Difference]: Finished difference Result 709 states and 873 transitions. [2024-11-24 00:48:30,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:48:30,735 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2024-11-24 00:48:30,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:30,739 INFO L225 Difference]: With dead ends: 709 [2024-11-24 00:48:30,739 INFO L226 Difference]: Without dead ends: 705 [2024-11-24 00:48:30,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:48:30,740 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 85 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:30,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 63 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:48:30,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-24 00:48:30,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2024-11-24 00:48:30,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 680 states have (on average 1.2602941176470588) internal successors, (857), 704 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 857 transitions. [2024-11-24 00:48:30,782 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 857 transitions. Word has length 45 [2024-11-24 00:48:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:30,783 INFO L471 AbstractCegarLoop]: Abstraction has 705 states and 857 transitions. [2024-11-24 00:48:30,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:30,783 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 857 transitions. [2024-11-24 00:48:30,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-24 00:48:30,784 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:30,786 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:30,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:48:30,786 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:30,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:30,787 INFO L85 PathProgramCache]: Analyzing trace with hash -708518458, now seen corresponding path program 1 times [2024-11-24 00:48:30,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:30,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947047443] [2024-11-24 00:48:30,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:30,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:30,893 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-24 00:48:30,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:30,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947047443] [2024-11-24 00:48:30,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947047443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:30,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811147472] [2024-11-24 00:48:30,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:30,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:30,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:30,896 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:30,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:48:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:30,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 00:48:30,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:31,136 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 75 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 00:48:31,136 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:31,257 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 75 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-24 00:48:31,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811147472] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:31,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:48:31,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 8, 8] total 16 [2024-11-24 00:48:31,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108427692] [2024-11-24 00:48:31,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:31,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:48:31,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:31,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:48:31,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:48:31,259 INFO L87 Difference]: Start difference. First operand 705 states and 857 transitions. Second operand has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:32,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:32,911 INFO L93 Difference]: Finished difference Result 3061 states and 3986 transitions. [2024-11-24 00:48:32,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-24 00:48:32,912 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-24 00:48:32,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:32,920 INFO L225 Difference]: With dead ends: 3061 [2024-11-24 00:48:32,920 INFO L226 Difference]: Without dead ends: 2379 [2024-11-24 00:48:32,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=643, Invalid=1163, Unknown=0, NotChecked=0, Total=1806 [2024-11-24 00:48:32,923 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 4630 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4630 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:32,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4630 Valid, 177 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 00:48:32,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2379 states. [2024-11-24 00:48:32,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2379 to 2363. [2024-11-24 00:48:32,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 2338 states have (on average 1.2630453378956372) internal successors, (2953), 2362 states have internal predecessors, (2953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:33,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 2953 transitions. [2024-11-24 00:48:33,005 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 2953 transitions. Word has length 46 [2024-11-24 00:48:33,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:33,005 INFO L471 AbstractCegarLoop]: Abstraction has 2363 states and 2953 transitions. [2024-11-24 00:48:33,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.75) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:33,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 2953 transitions. [2024-11-24 00:48:33,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-24 00:48:33,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:33,007 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:33,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:48:33,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:33,211 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:33,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:33,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2065270814, now seen corresponding path program 1 times [2024-11-24 00:48:33,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:33,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180982498] [2024-11-24 00:48:33,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:33,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:33,767 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 425 proven. 190 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-24 00:48:33,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:33,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180982498] [2024-11-24 00:48:33,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180982498] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:33,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877580048] [2024-11-24 00:48:33,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:33,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:33,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:33,770 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:33,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:48:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:33,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-24 00:48:33,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:34,256 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 425 proven. 190 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-24 00:48:34,256 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:34,618 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 425 proven. 190 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-24 00:48:34,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877580048] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:34,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:48:34,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 37 [2024-11-24 00:48:34,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568000816] [2024-11-24 00:48:34,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:34,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-24 00:48:34,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:34,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-24 00:48:34,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=753, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 00:48:34,621 INFO L87 Difference]: Start difference. First operand 2363 states and 2953 transitions. Second operand has 37 states, 37 states have (on average 4.5675675675675675) internal successors, (169), 37 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:36,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:36,603 INFO L93 Difference]: Finished difference Result 7343 states and 9458 transitions. [2024-11-24 00:48:36,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-24 00:48:36,604 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 4.5675675675675675) internal successors, (169), 37 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2024-11-24 00:48:36,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:36,622 INFO L225 Difference]: With dead ends: 7343 [2024-11-24 00:48:36,622 INFO L226 Difference]: Without dead ends: 5027 [2024-11-24 00:48:36,626 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 745 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=876, Invalid=1380, Unknown=0, NotChecked=0, Total=2256 [2024-11-24 00:48:36,626 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 3677 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3677 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:36,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3677 Valid, 114 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 00:48:36,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5027 states. [2024-11-24 00:48:36,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5027 to 5027. [2024-11-24 00:48:36,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5027 states, 5002 states have (on average 1.266893242702919) internal successors, (6337), 5026 states have internal predecessors, (6337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:36,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5027 states to 5027 states and 6337 transitions. [2024-11-24 00:48:36,793 INFO L78 Accepts]: Start accepts. Automaton has 5027 states and 6337 transitions. Word has length 129 [2024-11-24 00:48:36,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:36,793 INFO L471 AbstractCegarLoop]: Abstraction has 5027 states and 6337 transitions. [2024-11-24 00:48:36,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.5675675675675675) internal successors, (169), 37 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:36,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5027 states and 6337 transitions. [2024-11-24 00:48:36,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-24 00:48:36,796 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:36,796 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:36,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-24 00:48:36,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 00:48:36,997 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:36,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:36,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1777123614, now seen corresponding path program 2 times [2024-11-24 00:48:36,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:36,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82803456] [2024-11-24 00:48:36,998 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:48:36,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:37,079 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:48:37,079 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:48:37,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3891 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3890 trivial. 0 not checked. [2024-11-24 00:48:37,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:37,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82803456] [2024-11-24 00:48:37,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82803456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:37,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498787556] [2024-11-24 00:48:37,464 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:48:37,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:37,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:37,466 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:37,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 00:48:37,664 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:48:37,665 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:48:37,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:48:37,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 3891 backedges. 1985 proven. 946 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2024-11-24 00:48:38,442 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:39,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3891 backedges. 1985 proven. 946 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2024-11-24 00:48:39,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498787556] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:39,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:48:39,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 26, 26] total 52 [2024-11-24 00:48:39,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078437834] [2024-11-24 00:48:39,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:39,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-11-24 00:48:39,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:39,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-11-24 00:48:39,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1186, Invalid=1466, Unknown=0, NotChecked=0, Total=2652 [2024-11-24 00:48:39,409 INFO L87 Difference]: Start difference. First operand 5027 states and 6337 transitions. Second operand has 52 states, 52 states have (on average 4.596153846153846) internal successors, (239), 52 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:51,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:51,734 INFO L93 Difference]: Finished difference Result 20456 states and 26824 transitions. [2024-11-24 00:48:51,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2024-11-24 00:48:51,735 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 4.596153846153846) internal successors, (239), 52 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2024-11-24 00:48:51,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:51,787 INFO L225 Difference]: With dead ends: 20456 [2024-11-24 00:48:51,787 INFO L226 Difference]: Without dead ends: 15524 [2024-11-24 00:48:51,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9132 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=9863, Invalid=18193, Unknown=0, NotChecked=0, Total=28056 [2024-11-24 00:48:51,799 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 23787 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 1016 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23787 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 3032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1016 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:51,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23787 Valid, 222 Invalid, 3032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1016 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-24 00:48:51,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15524 states. [2024-11-24 00:48:52,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15524 to 10357. [2024-11-24 00:48:52,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10357 states, 10332 states have (on average 1.2684862562911343) internal successors, (13106), 10356 states have internal predecessors, (13106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:52,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10357 states to 10357 states and 13106 transitions. [2024-11-24 00:48:52,194 INFO L78 Accepts]: Start accepts. Automaton has 10357 states and 13106 transitions. Word has length 225 [2024-11-24 00:48:52,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:52,194 INFO L471 AbstractCegarLoop]: Abstraction has 10357 states and 13106 transitions. [2024-11-24 00:48:52,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.596153846153846) internal successors, (239), 52 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:52,195 INFO L276 IsEmpty]: Start isEmpty. Operand 10357 states and 13106 transitions. [2024-11-24 00:48:52,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2024-11-24 00:48:52,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:52,207 INFO L218 NwaCegarLoop]: trace histogram [138, 138, 138, 138, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-24 00:48:52,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:52,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-24 00:48:52,412 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:52,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:52,413 INFO L85 PathProgramCache]: Analyzing trace with hash 73168128, now seen corresponding path program 2 times [2024-11-24 00:48:52,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:52,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734072186] [2024-11-24 00:48:52,413 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:48:52,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:52,512 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:48:52,513 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:48:52,547 INFO L134 CoverageAnalysis]: Checked inductivity of 38241 backedges. 0 proven. 17120 refuted. 0 times theorem prover too weak. 21121 trivial. 0 not checked. [2024-11-24 00:48:52,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:52,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734072186] [2024-11-24 00:48:52,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734072186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:52,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117289248] [2024-11-24 00:48:52,548 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:48:52,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:52,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:52,550 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:52,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 00:48:52,813 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:48:52,813 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:48:52,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:48:52,828 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:53,579 INFO L134 CoverageAnalysis]: Checked inductivity of 38241 backedges. 0 proven. 17120 refuted. 0 times theorem prover too weak. 21121 trivial. 0 not checked. [2024-11-24 00:48:53,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:54,280 INFO L134 CoverageAnalysis]: Checked inductivity of 38241 backedges. 0 proven. 17120 refuted. 0 times theorem prover too weak. 21121 trivial. 0 not checked. [2024-11-24 00:48:54,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117289248] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:48:54,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:48:54,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-24 00:48:54,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015459589] [2024-11-24 00:48:54,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:54,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:48:54,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:48:54,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:48:54,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:48:54,283 INFO L87 Difference]: Start difference. First operand 10357 states and 13106 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:54,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:54,571 INFO L93 Difference]: Finished difference Result 10357 states and 13106 transitions. [2024-11-24 00:48:54,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:48:54,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 571 [2024-11-24 00:48:54,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:54,595 INFO L225 Difference]: With dead ends: 10357 [2024-11-24 00:48:54,596 INFO L226 Difference]: Without dead ends: 10354 [2024-11-24 00:48:54,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1145 GetRequests, 1139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:48:54,600 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 117 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:54,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 64 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:48:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10354 states. [2024-11-24 00:48:54,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10354 to 9970. [2024-11-24 00:48:54,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9970 states, 9948 states have (on average 1.2780458383594693) internal successors, (12714), 9969 states have internal predecessors, (12714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9970 states to 9970 states and 12714 transitions. [2024-11-24 00:48:54,940 INFO L78 Accepts]: Start accepts. Automaton has 9970 states and 12714 transitions. Word has length 571 [2024-11-24 00:48:54,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:54,943 INFO L471 AbstractCegarLoop]: Abstraction has 9970 states and 12714 transitions. [2024-11-24 00:48:54,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:48:54,943 INFO L276 IsEmpty]: Start isEmpty. Operand 9970 states and 12714 transitions. [2024-11-24 00:48:54,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2024-11-24 00:48:54,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:54,965 INFO L218 NwaCegarLoop]: trace histogram [184, 184, 184, 184, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-24 00:48:54,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-24 00:48:55,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 00:48:55,170 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:48:55,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:55,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1677794254, now seen corresponding path program 1 times [2024-11-24 00:48:55,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:48:55,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432980109] [2024-11-24 00:48:55,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:55,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:48:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:56,444 INFO L134 CoverageAnalysis]: Checked inductivity of 68122 backedges. 0 proven. 34252 refuted. 0 times theorem prover too weak. 33870 trivial. 0 not checked. [2024-11-24 00:48:56,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:48:56,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432980109] [2024-11-24 00:48:56,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432980109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:56,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535744915] [2024-11-24 00:48:56,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:56,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:48:56,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:48:56,447 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:48:56,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 00:48:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:57,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-24 00:48:57,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 68122 backedges. 25681 proven. 4186 refuted. 0 times theorem prover too weak. 38255 trivial. 0 not checked. [2024-11-24 00:48:59,010 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:49:01,885 INFO L134 CoverageAnalysis]: Checked inductivity of 68122 backedges. 25681 proven. 4186 refuted. 0 times theorem prover too weak. 38255 trivial. 0 not checked. [2024-11-24 00:49:01,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535744915] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:49:01,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:49:01,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 50, 50] total 100 [2024-11-24 00:49:01,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896364073] [2024-11-24 00:49:01,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:49:01,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2024-11-24 00:49:01,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:49:01,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2024-11-24 00:49:01,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4663, Invalid=5237, Unknown=0, NotChecked=0, Total=9900 [2024-11-24 00:49:01,893 INFO L87 Difference]: Start difference. First operand 9970 states and 12714 transitions. Second operand has 100 states, 100 states have (on average 4.24) internal successors, (424), 100 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:49:40,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:49:40,019 INFO L93 Difference]: Finished difference Result 30030 states and 39156 transitions. [2024-11-24 00:49:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2024-11-24 00:49:40,020 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 4.24) internal successors, (424), 100 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 767 [2024-11-24 00:49:40,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:49:40,065 INFO L225 Difference]: With dead ends: 30030 [2024-11-24 00:49:40,065 INFO L226 Difference]: Without dead ends: 20251 [2024-11-24 00:49:40,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1725 GetRequests, 1437 SyntacticMatches, 0 SemanticMatches, 288 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22278 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=23473, Invalid=60337, Unknown=0, NotChecked=0, Total=83810 [2024-11-24 00:49:40,084 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 40953 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 7044 mSolverCounterSat, 1845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40953 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 8889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1845 IncrementalHoareTripleChecker+Valid, 7044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:49:40,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40953 Valid, 498 Invalid, 8889 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1845 Valid, 7044 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-24 00:49:40,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20251 states. [2024-11-24 00:49:40,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20251 to 20239. [2024-11-24 00:49:40,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20239 states, 20220 states have (on average 1.2790801186943621) internal successors, (25863), 20238 states have internal predecessors, (25863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:49:40,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20239 states to 20239 states and 25863 transitions. [2024-11-24 00:49:40,565 INFO L78 Accepts]: Start accepts. Automaton has 20239 states and 25863 transitions. Word has length 767 [2024-11-24 00:49:40,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:49:40,566 INFO L471 AbstractCegarLoop]: Abstraction has 20239 states and 25863 transitions. [2024-11-24 00:49:40,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 4.24) internal successors, (424), 100 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:49:40,567 INFO L276 IsEmpty]: Start isEmpty. Operand 20239 states and 25863 transitions. [2024-11-24 00:49:40,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1537 [2024-11-24 00:49:40,619 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:49:40,620 INFO L218 NwaCegarLoop]: trace histogram [376, 376, 376, 376, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-24 00:49:40,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 00:49:40,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 00:49:40,820 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-24 00:49:40,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:49:40,821 INFO L85 PathProgramCache]: Analyzing trace with hash -382067134, now seen corresponding path program 1 times [2024-11-24 00:49:40,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:49:40,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268286111] [2024-11-24 00:49:40,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:40,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:49:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:44,311 INFO L134 CoverageAnalysis]: Checked inductivity of 283547 backedges. 0 proven. 142157 refuted. 0 times theorem prover too weak. 141390 trivial. 0 not checked. [2024-11-24 00:49:44,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:49:44,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268286111] [2024-11-24 00:49:44,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268286111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:49:44,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719144642] [2024-11-24 00:49:44,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:49:44,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:49:44,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:49:44,314 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:49:44,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bef0fb16-35a8-4600-b751-02f2c687edb5/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 00:49:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:49:45,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 4237 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-24 00:49:45,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:49:51,886 INFO L134 CoverageAnalysis]: Checked inductivity of 283547 backedges. 106609 proven. 17578 refuted. 0 times theorem prover too weak. 159360 trivial. 0 not checked. [2024-11-24 00:49:51,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:50:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 283547 backedges. 106609 proven. 17578 refuted. 0 times theorem prover too weak. 159360 trivial. 0 not checked. [2024-11-24 00:50:02,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719144642] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:50:02,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:50:02,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 98, 98] total 196 [2024-11-24 00:50:02,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305713623] [2024-11-24 00:50:02,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:50:02,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2024-11-24 00:50:02,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:50:02,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2024-11-24 00:50:02,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18536, Invalid=19684, Unknown=0, NotChecked=0, Total=38220 [2024-11-24 00:50:02,136 INFO L87 Difference]: Start difference. First operand 20239 states and 25863 transitions. Second operand has 196 states, 196 states have (on average 4.127551020408164) internal successors, (809), 196 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)