./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB --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 5f094e7ea34d2025ab25ab51a4a0b06d8f845826c76dbd06e91f3d4a761fa19b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:30:48,707 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:30:48,786 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:30:48,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:30:48,793 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:30:48,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:30:48,821 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:30:48,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:30:48,822 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:30:48,822 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:30:48,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:30:48,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:30:48,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:30:48,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:30:48,823 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:30:48,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:30:48,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:30:48,824 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:30:48,824 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:30:48,824 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:30:48,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:30:48,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:30:48,825 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:30:48,825 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:30:48,825 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:30:48,825 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:30:48,826 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:30:48,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:30:48,826 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:30:48,826 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:30:48,826 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:30:48,826 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:30:48,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:30:48,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:30:48,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:30:48,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:30:48,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:30:48,827 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:30:48,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:30:48,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:30:48,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:30:48,828 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:30:48,828 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:30:48,828 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:30:48,829 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:30:48,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:30:48,829 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:30:48,829 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:30:48,829 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:30:48,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:30:48,829 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_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 5f094e7ea34d2025ab25ab51a4a0b06d8f845826c76dbd06e91f3d4a761fa19b [2024-11-27 20:30:49,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:30:49,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:30:49,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:30:49,179 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:30:49,179 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:30:49,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound5.c [2024-11-27 20:30:52,287 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/data/4ad220805/06f26c5d781e4039b5dca5991e7601c2/FLAG2819f09c5 [2024-11-27 20:30:52,550 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:30:52,551 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound5.c [2024-11-27 20:30:52,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/data/4ad220805/06f26c5d781e4039b5dca5991e7601c2/FLAG2819f09c5 [2024-11-27 20:30:52,853 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/data/4ad220805/06f26c5d781e4039b5dca5991e7601c2 [2024-11-27 20:30:52,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:30:52,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:30:52,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:30:52,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:30:52,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:30:52,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:30:52" (1/1) ... [2024-11-27 20:30:52,866 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c4d8bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:52, skipping insertion in model container [2024-11-27 20:30:52,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:30:52" (1/1) ... [2024-11-27 20:30:52,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:30:53,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:30:53,129 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:30:53,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:30:53,173 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:30:53,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53 WrapperNode [2024-11-27 20:30:53,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:30:53,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:30:53,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:30:53,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:30:53,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,229 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2024-11-27 20:30:53,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:30:53,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:30:53,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:30:53,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:30:53,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,253 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,278 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-27 20:30:53,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,279 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,285 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,297 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:30:53,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:30:53,305 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:30:53,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:30:53,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (1/1) ... [2024-11-27 20:30:53,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:30:53,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:53,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:53,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:30:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:30:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:30:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:30:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:30:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:30:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:30:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:30:53,454 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:30:53,456 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:30:53,873 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-27 20:30:53,873 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:30:53,890 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:30:53,891 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:30:53,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:53 BoogieIcfgContainer [2024-11-27 20:30:53,893 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:30:53,896 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:30:53,896 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:30:53,903 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:30:53,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:30:52" (1/3) ... [2024-11-27 20:30:53,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149b928d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:30:53, skipping insertion in model container [2024-11-27 20:30:53,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:53" (2/3) ... [2024-11-27 20:30:53,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149b928d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:30:53, skipping insertion in model container [2024-11-27 20:30:53,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:53" (3/3) ... [2024-11-27 20:30:53,907 INFO L128 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound5.c [2024-11-27 20:30:53,928 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:30:53,930 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard2_unwindbound5.c that has 2 procedures, 82 locations, 1 initial locations, 2 loop locations, and 28 error locations. [2024-11-27 20:30:54,017 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:30:54,032 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;@652e84e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:30:54,032 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-27 20:30:54,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 45 states have (on average 1.8) internal successors, (81), 73 states have internal predecessors, (81), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 20:30:54,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-27 20:30:54,043 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:54,044 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-27 20:30:54,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:54,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:54,049 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2024-11-27 20:30:54,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:54,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991998387] [2024-11-27 20:30:54,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:54,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:54,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:54,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991998387] [2024-11-27 20:30:54,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991998387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:54,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:54,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:30:54,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048042267] [2024-11-27 20:30:54,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:54,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:30:54,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:54,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:30:54,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:30:54,340 INFO L87 Difference]: Start difference. First operand has 82 states, 45 states have (on average 1.8) internal successors, (81), 73 states have internal predecessors, (81), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-27 20:30:54,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:54,450 INFO L93 Difference]: Finished difference Result 165 states and 202 transitions. [2024-11-27 20:30:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:30:54,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-27 20:30:54,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:54,460 INFO L225 Difference]: With dead ends: 165 [2024-11-27 20:30:54,460 INFO L226 Difference]: Without dead ends: 78 [2024-11-27 20:30:54,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:30:54,469 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 4 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:54,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 253 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:30:54,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-27 20:30:54,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-27 20:30:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 44 states have (on average 1.7272727272727273) internal successors, (76), 71 states have internal predecessors, (76), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 20:30:54,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2024-11-27 20:30:54,522 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 4 [2024-11-27 20:30:54,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:54,522 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2024-11-27 20:30:54,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-27 20:30:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2024-11-27 20:30:54,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-27 20:30:54,524 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:54,525 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:54,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:30:54,525 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:54,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:54,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1496348935, now seen corresponding path program 1 times [2024-11-27 20:30:54,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:54,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161279606] [2024-11-27 20:30:54,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:54,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:30:54,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1272653357] [2024-11-27 20:30:54,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:54,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:54,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:54,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:54,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:30:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:54,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:30:54,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:54,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:30:54,736 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:54,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:54,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161279606] [2024-11-27 20:30:54,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:30:54,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272653357] [2024-11-27 20:30:54,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272653357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:54,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:54,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:30:54,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765143618] [2024-11-27 20:30:54,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:54,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:30:54,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:54,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:30:54,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:54,743 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:30:54,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:54,888 INFO L93 Difference]: Finished difference Result 167 states and 191 transitions. [2024-11-27 20:30:54,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:30:54,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-27 20:30:54,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:54,891 INFO L225 Difference]: With dead ends: 167 [2024-11-27 20:30:54,891 INFO L226 Difference]: Without dead ends: 113 [2024-11-27 20:30:54,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:54,893 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 29 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:54,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 118 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:54,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-27 20:30:54,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 101. [2024-11-27 20:30:54,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 62 states have (on average 1.6774193548387097) internal successors, (104), 89 states have internal predecessors, (104), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:30:54,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2024-11-27 20:30:54,906 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 17 [2024-11-27 20:30:54,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:54,908 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2024-11-27 20:30:54,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:30:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2024-11-27 20:30:54,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 20:30:54,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:54,909 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:54,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:55,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:55,110 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:55,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:55,111 INFO L85 PathProgramCache]: Analyzing trace with hash 328891425, now seen corresponding path program 1 times [2024-11-27 20:30:55,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:55,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842667474] [2024-11-27 20:30:55,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:55,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:55,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:55,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842667474] [2024-11-27 20:30:55,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842667474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:55,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:55,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:30:55,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516252525] [2024-11-27 20:30:55,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:55,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:30:55,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:55,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:30:55,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:55,250 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:55,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:55,344 INFO L93 Difference]: Finished difference Result 113 states and 131 transitions. [2024-11-27 20:30:55,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:30:55,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-27 20:30:55,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:55,346 INFO L225 Difference]: With dead ends: 113 [2024-11-27 20:30:55,346 INFO L226 Difference]: Without dead ends: 111 [2024-11-27 20:30:55,346 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 [2024-11-27 20:30:55,347 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 23 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:55,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 131 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:55,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-27 20:30:55,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 101. [2024-11-27 20:30:55,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 62 states have (on average 1.6451612903225807) internal successors, (102), 89 states have internal predecessors, (102), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:30:55,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 122 transitions. [2024-11-27 20:30:55,360 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 122 transitions. Word has length 25 [2024-11-27 20:30:55,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:55,361 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 122 transitions. [2024-11-27 20:30:55,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 122 transitions. [2024-11-27 20:30:55,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-27 20:30:55,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:55,362 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:55,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:30:55,363 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:55,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1605698107, now seen corresponding path program 1 times [2024-11-27 20:30:55,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:55,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873914318] [2024-11-27 20:30:55,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:55,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:55,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:55,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873914318] [2024-11-27 20:30:55,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873914318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:55,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:55,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:30:55,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086581100] [2024-11-27 20:30:55,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:55,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:30:55,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:55,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:30:55,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:30:55,574 INFO L87 Difference]: Start difference. First operand 101 states and 122 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:55,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:55,737 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2024-11-27 20:30:55,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:30:55,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-11-27 20:30:55,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:55,743 INFO L225 Difference]: With dead ends: 124 [2024-11-27 20:30:55,743 INFO L226 Difference]: Without dead ends: 123 [2024-11-27 20:30:55,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:30:55,744 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 46 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:55,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 380 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:55,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-27 20:30:55,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 105. [2024-11-27 20:30:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 65 states have (on average 1.6) internal successors, (104), 92 states have internal predecessors, (104), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:30:55,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 124 transitions. [2024-11-27 20:30:55,767 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 124 transitions. Word has length 26 [2024-11-27 20:30:55,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:55,768 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 124 transitions. [2024-11-27 20:30:55,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:55,768 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 124 transitions. [2024-11-27 20:30:55,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-27 20:30:55,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:55,769 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:55,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:30:55,773 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:55,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:55,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1762966159, now seen corresponding path program 1 times [2024-11-27 20:30:55,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:55,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716603577] [2024-11-27 20:30:55,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:55,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:55,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:55,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716603577] [2024-11-27 20:30:55,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716603577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:55,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:55,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:30:55,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624587461] [2024-11-27 20:30:55,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:55,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:30:55,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:55,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:30:55,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:30:55,961 INFO L87 Difference]: Start difference. First operand 105 states and 124 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:56,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:56,086 INFO L93 Difference]: Finished difference Result 123 states and 139 transitions. [2024-11-27 20:30:56,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:30:56,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-11-27 20:30:56,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:56,089 INFO L225 Difference]: With dead ends: 123 [2024-11-27 20:30:56,089 INFO L226 Difference]: Without dead ends: 114 [2024-11-27 20:30:56,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:30:56,090 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 21 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:56,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 419 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:56,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-27 20:30:56,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 109. [2024-11-27 20:30:56,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 68 states have (on average 1.5441176470588236) internal successors, (105), 95 states have internal predecessors, (105), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:30:56,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2024-11-27 20:30:56,102 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 27 [2024-11-27 20:30:56,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:56,102 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2024-11-27 20:30:56,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:56,103 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2024-11-27 20:30:56,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-27 20:30:56,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:56,104 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:56,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:30:56,105 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:56,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:56,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1993361642, now seen corresponding path program 1 times [2024-11-27 20:30:56,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:56,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114146803] [2024-11-27 20:30:56,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:56,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:56,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:30:56,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128192429] [2024-11-27 20:30:56,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:56,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:56,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:56,156 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:56,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:30:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:56,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:30:56,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:56,312 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:56,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:56,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114146803] [2024-11-27 20:30:56,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:30:56,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128192429] [2024-11-27 20:30:56,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128192429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:56,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:56,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:30:56,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722211248] [2024-11-27 20:30:56,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:56,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:30:56,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:56,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:30:56,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:56,314 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:56,420 INFO L93 Difference]: Finished difference Result 149 states and 175 transitions. [2024-11-27 20:30:56,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:30:56,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-27 20:30:56,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:56,421 INFO L225 Difference]: With dead ends: 149 [2024-11-27 20:30:56,422 INFO L226 Difference]: Without dead ends: 145 [2024-11-27 20:30:56,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:56,425 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 45 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:56,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 105 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:56,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-27 20:30:56,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 129. [2024-11-27 20:30:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 86 states have (on average 1.558139534883721) internal successors, (134), 113 states have internal predecessors, (134), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:30:56,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 158 transitions. [2024-11-27 20:30:56,449 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 158 transitions. Word has length 29 [2024-11-27 20:30:56,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:56,450 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 158 transitions. [2024-11-27 20:30:56,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:56,450 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 158 transitions. [2024-11-27 20:30:56,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-27 20:30:56,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:56,451 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:56,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:30:56,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:56,652 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:56,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:56,652 INFO L85 PathProgramCache]: Analyzing trace with hash -244664895, now seen corresponding path program 1 times [2024-11-27 20:30:56,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:56,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742994748] [2024-11-27 20:30:56,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:56,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:56,799 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:56,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:56,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742994748] [2024-11-27 20:30:56,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742994748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:56,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392384970] [2024-11-27 20:30:56,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:56,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:56,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:56,802 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:56,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:30:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:56,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:30:56,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:57,019 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:57,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392384970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:57,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:30:57,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-27 20:30:57,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396633597] [2024-11-27 20:30:57,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:57,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:30:57,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:57,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:30:57,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:30:57,022 INFO L87 Difference]: Start difference. First operand 129 states and 158 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:57,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:57,073 INFO L93 Difference]: Finished difference Result 138 states and 166 transitions. [2024-11-27 20:30:57,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:30:57,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2024-11-27 20:30:57,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:57,077 INFO L225 Difference]: With dead ends: 138 [2024-11-27 20:30:57,077 INFO L226 Difference]: Without dead ends: 137 [2024-11-27 20:30:57,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:30:57,079 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 19 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:57,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 198 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:30:57,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-27 20:30:57,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 132. [2024-11-27 20:30:57,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 89 states have (on average 1.5280898876404494) internal successors, (136), 115 states have internal predecessors, (136), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:30:57,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 160 transitions. [2024-11-27 20:30:57,108 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 160 transitions. Word has length 30 [2024-11-27 20:30:57,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:57,108 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 160 transitions. [2024-11-27 20:30:57,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:57,108 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 160 transitions. [2024-11-27 20:30:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-27 20:30:57,109 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:57,109 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:57,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:30:57,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:57,310 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:57,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:57,310 INFO L85 PathProgramCache]: Analyzing trace with hash -65121192, now seen corresponding path program 1 times [2024-11-27 20:30:57,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:57,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536123529] [2024-11-27 20:30:57,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:57,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:30:57,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1953629701] [2024-11-27 20:30:57,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:57,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:57,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:57,349 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:57,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:30:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:57,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:30:57,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:57,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:57,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:57,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536123529] [2024-11-27 20:30:57,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:30:57,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953629701] [2024-11-27 20:30:57,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953629701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:57,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:57,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:30:57,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680996463] [2024-11-27 20:30:57,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:57,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:30:57,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:57,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:30:57,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:57,572 INFO L87 Difference]: Start difference. First operand 132 states and 160 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:57,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:57,663 INFO L93 Difference]: Finished difference Result 146 states and 167 transitions. [2024-11-27 20:30:57,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:30:57,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-11-27 20:30:57,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:57,666 INFO L225 Difference]: With dead ends: 146 [2024-11-27 20:30:57,666 INFO L226 Difference]: Without dead ends: 144 [2024-11-27 20:30:57,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:57,667 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 38 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:57,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 96 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:57,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-27 20:30:57,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 133. [2024-11-27 20:30:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 90 states have (on average 1.5) internal successors, (135), 116 states have internal predecessors, (135), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:30:57,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 159 transitions. [2024-11-27 20:30:57,685 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 159 transitions. Word has length 31 [2024-11-27 20:30:57,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:57,685 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 159 transitions. [2024-11-27 20:30:57,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:57,685 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 159 transitions. [2024-11-27 20:30:57,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-27 20:30:57,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:57,686 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:57,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:57,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:57,891 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:57,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:57,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1005322887, now seen corresponding path program 1 times [2024-11-27 20:30:57,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:57,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810727931] [2024-11-27 20:30:57,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:57,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:58,072 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:58,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:58,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810727931] [2024-11-27 20:30:58,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810727931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:58,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116656563] [2024-11-27 20:30:58,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:58,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:58,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:58,076 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:58,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:30:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:58,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:30:58,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:58,255 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:30:58,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116656563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:58,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:30:58,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-27 20:30:58,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324216256] [2024-11-27 20:30:58,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:58,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:30:58,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:58,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:30:58,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:30:58,258 INFO L87 Difference]: Start difference. First operand 133 states and 159 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:58,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:58,367 INFO L93 Difference]: Finished difference Result 138 states and 164 transitions. [2024-11-27 20:30:58,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:30:58,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-11-27 20:30:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:58,371 INFO L225 Difference]: With dead ends: 138 [2024-11-27 20:30:58,371 INFO L226 Difference]: Without dead ends: 137 [2024-11-27 20:30:58,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:30:58,372 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 16 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:58,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 269 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:58,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-27 20:30:58,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 132. [2024-11-27 20:30:58,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 90 states have (on average 1.488888888888889) internal successors, (134), 115 states have internal predecessors, (134), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:30:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2024-11-27 20:30:58,390 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 31 [2024-11-27 20:30:58,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:58,391 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2024-11-27 20:30:58,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:58,391 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2024-11-27 20:30:58,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-27 20:30:58,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:58,392 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:58,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:30:58,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:58,596 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:58,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:58,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2018756862, now seen corresponding path program 1 times [2024-11-27 20:30:58,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:58,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339682338] [2024-11-27 20:30:58,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:58,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:58,710 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:58,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:58,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339682338] [2024-11-27 20:30:58,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339682338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:58,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:58,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:30:58,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100643820] [2024-11-27 20:30:58,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:58,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:30:58,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:58,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:30:58,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:30:58,712 INFO L87 Difference]: Start difference. First operand 132 states and 158 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:59,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:59,148 INFO L93 Difference]: Finished difference Result 152 states and 184 transitions. [2024-11-27 20:30:59,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:30:59,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2024-11-27 20:30:59,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:59,150 INFO L225 Difference]: With dead ends: 152 [2024-11-27 20:30:59,150 INFO L226 Difference]: Without dead ends: 151 [2024-11-27 20:30:59,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:30:59,151 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 90 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:59,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 159 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:30:59,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-27 20:30:59,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 140. [2024-11-27 20:30:59,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 98 states have (on average 1.489795918367347) internal successors, (146), 123 states have internal predecessors, (146), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 20:30:59,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 170 transitions. [2024-11-27 20:30:59,166 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 170 transitions. Word has length 32 [2024-11-27 20:30:59,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:59,167 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 170 transitions. [2024-11-27 20:30:59,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:30:59,167 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 170 transitions. [2024-11-27 20:30:59,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-27 20:30:59,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:59,168 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:59,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:30:59,168 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:30:59,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:59,169 INFO L85 PathProgramCache]: Analyzing trace with hash 767217160, now seen corresponding path program 1 times [2024-11-27 20:30:59,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:59,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74871358] [2024-11-27 20:30:59,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:59,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:59,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:59,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74871358] [2024-11-27 20:30:59,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74871358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:59,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394229882] [2024-11-27 20:30:59,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:59,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:59,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:59,312 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:59,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:30:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:59,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:30:59,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:59,456 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:59,562 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:30:59,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394229882] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:30:59,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:30:59,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-11-27 20:30:59,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102498621] [2024-11-27 20:30:59,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:30:59,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:30:59,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:59,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:30:59,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:30:59,564 INFO L87 Difference]: Start difference. First operand 140 states and 170 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 20:30:59,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:30:59,773 INFO L93 Difference]: Finished difference Result 281 states and 342 transitions. [2024-11-27 20:30:59,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:30:59,774 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 34 [2024-11-27 20:30:59,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:30:59,775 INFO L225 Difference]: With dead ends: 281 [2024-11-27 20:30:59,775 INFO L226 Difference]: Without dead ends: 202 [2024-11-27 20:30:59,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:30:59,776 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 65 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:30:59,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 398 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:30:59,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2024-11-27 20:30:59,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 180. [2024-11-27 20:30:59,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 130 states have (on average 1.476923076923077) internal successors, (192), 155 states have internal predecessors, (192), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-27 20:30:59,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 228 transitions. [2024-11-27 20:30:59,832 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 228 transitions. Word has length 34 [2024-11-27 20:30:59,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:30:59,832 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 228 transitions. [2024-11-27 20:30:59,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-27 20:30:59,833 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 228 transitions. [2024-11-27 20:30:59,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 20:30:59,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:30:59,833 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:59,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:00,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:00,034 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:00,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:00,035 INFO L85 PathProgramCache]: Analyzing trace with hash -874625494, now seen corresponding path program 1 times [2024-11-27 20:31:00,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:00,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090311143] [2024-11-27 20:31:00,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:00,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:31:00,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853069575] [2024-11-27 20:31:00,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:00,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:00,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:00,064 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:00,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:31:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:00,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:31:00,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:31:00,268 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:31:00,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:00,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090311143] [2024-11-27 20:31:00,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:31:00,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853069575] [2024-11-27 20:31:00,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853069575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:00,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:00,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:31:00,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661238241] [2024-11-27 20:31:00,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:00,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:31:00,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:00,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:31:00,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:31:00,271 INFO L87 Difference]: Start difference. First operand 180 states and 228 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:31:00,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:00,399 INFO L93 Difference]: Finished difference Result 216 states and 267 transitions. [2024-11-27 20:31:00,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:31:00,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-11-27 20:31:00,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:00,402 INFO L225 Difference]: With dead ends: 216 [2024-11-27 20:31:00,402 INFO L226 Difference]: Without dead ends: 207 [2024-11-27 20:31:00,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:31:00,403 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 79 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:00,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 125 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:00,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-27 20:31:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 189. [2024-11-27 20:31:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 141 states have (on average 1.3971631205673758) internal successors, (197), 162 states have internal predecessors, (197), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:31:00,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 237 transitions. [2024-11-27 20:31:00,425 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 237 transitions. Word has length 43 [2024-11-27 20:31:00,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:00,426 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 237 transitions. [2024-11-27 20:31:00,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:31:00,426 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 237 transitions. [2024-11-27 20:31:00,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 20:31:00,427 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:00,427 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:00,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:31:00,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 20:31:00,631 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:00,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:00,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1343586486, now seen corresponding path program 1 times [2024-11-27 20:31:00,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:00,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329091715] [2024-11-27 20:31:00,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:00,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:31:00,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1700015856] [2024-11-27 20:31:00,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:00,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:00,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:00,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:00,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:31:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:00,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:31:00,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:31:00,844 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:01,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:01,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329091715] [2024-11-27 20:31:01,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:31:01,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700015856] [2024-11-27 20:31:01,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700015856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:01,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:01,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-11-27 20:31:01,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726111034] [2024-11-27 20:31:01,218 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:01,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:31:01,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:01,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:31:01,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:01,219 INFO L87 Difference]: Start difference. First operand 189 states and 237 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:31:01,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:01,414 INFO L93 Difference]: Finished difference Result 286 states and 361 transitions. [2024-11-27 20:31:01,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:31:01,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2024-11-27 20:31:01,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:01,418 INFO L225 Difference]: With dead ends: 286 [2024-11-27 20:31:01,418 INFO L226 Difference]: Without dead ends: 282 [2024-11-27 20:31:01,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:01,419 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 66 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:01,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 166 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:01,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-27 20:31:01,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 250. [2024-11-27 20:31:01,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 196 states have (on average 1.433673469387755) internal successors, (281), 217 states have internal predecessors, (281), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 20:31:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 333 transitions. [2024-11-27 20:31:01,449 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 333 transitions. Word has length 44 [2024-11-27 20:31:01,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:01,449 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 333 transitions. [2024-11-27 20:31:01,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:31:01,450 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 333 transitions. [2024-11-27 20:31:01,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-27 20:31:01,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:01,455 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:01,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:01,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 20:31:01,656 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:01,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:01,657 INFO L85 PathProgramCache]: Analyzing trace with hash 177539779, now seen corresponding path program 1 times [2024-11-27 20:31:01,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:01,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019977383] [2024-11-27 20:31:01,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:01,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:01,832 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:31:01,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:01,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019977383] [2024-11-27 20:31:01,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019977383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:01,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:01,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:31:01,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180463387] [2024-11-27 20:31:01,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:01,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:31:01,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:01,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:31:01,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:31:01,835 INFO L87 Difference]: Start difference. First operand 250 states and 333 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:31:01,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:01,952 INFO L93 Difference]: Finished difference Result 255 states and 337 transitions. [2024-11-27 20:31:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:31:01,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-11-27 20:31:01,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:01,954 INFO L225 Difference]: With dead ends: 255 [2024-11-27 20:31:01,954 INFO L226 Difference]: Without dead ends: 233 [2024-11-27 20:31:01,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:01,956 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 25 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:01,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 123 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:01,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-27 20:31:01,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-11-27 20:31:01,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 182 states have (on average 1.4615384615384615) internal successors, (266), 203 states have internal predecessors, (266), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-27 20:31:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 314 transitions. [2024-11-27 20:31:01,982 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 314 transitions. Word has length 49 [2024-11-27 20:31:01,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:01,983 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 314 transitions. [2024-11-27 20:31:01,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:31:01,983 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 314 transitions. [2024-11-27 20:31:01,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 20:31:01,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:01,984 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:01,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:31:01,985 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:01,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:01,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1685686716, now seen corresponding path program 1 times [2024-11-27 20:31:01,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:01,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379617622] [2024-11-27 20:31:01,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:01,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:02,095 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:31:02,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:02,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379617622] [2024-11-27 20:31:02,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379617622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:02,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471035853] [2024-11-27 20:31:02,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:02,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:02,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:02,099 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:02,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:31:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:02,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:31:02,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:31:02,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:31:02,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471035853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:02,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:02,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 20:31:02,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899530183] [2024-11-27 20:31:02,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:02,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:31:02,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:02,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:31:02,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:31:02,241 INFO L87 Difference]: Start difference. First operand 233 states and 314 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 20:31:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:02,379 INFO L93 Difference]: Finished difference Result 336 states and 463 transitions. [2024-11-27 20:31:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:31:02,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-11-27 20:31:02,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:02,383 INFO L225 Difference]: With dead ends: 336 [2024-11-27 20:31:02,383 INFO L226 Difference]: Without dead ends: 334 [2024-11-27 20:31:02,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:31:02,386 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 59 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:02,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 152 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:02,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-27 20:31:02,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 306. [2024-11-27 20:31:02,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 248 states have (on average 1.4838709677419355) internal successors, (368), 268 states have internal predecessors, (368), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 20:31:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 432 transitions. [2024-11-27 20:31:02,440 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 432 transitions. Word has length 51 [2024-11-27 20:31:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:02,441 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 432 transitions. [2024-11-27 20:31:02,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 20:31:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 432 transitions. [2024-11-27 20:31:02,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-27 20:31:02,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:02,444 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:02,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:02,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 20:31:02,645 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:02,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:02,645 INFO L85 PathProgramCache]: Analyzing trace with hash -716682120, now seen corresponding path program 1 times [2024-11-27 20:31:02,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:02,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623547509] [2024-11-27 20:31:02,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:02,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:02,816 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:31:02,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:02,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623547509] [2024-11-27 20:31:02,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623547509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:02,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318997438] [2024-11-27 20:31:02,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:02,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:02,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:02,819 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:02,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:31:02,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:02,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:31:02,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:03,043 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:31:03,043 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:31:03,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318997438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:03,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:03,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-27 20:31:03,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877642603] [2024-11-27 20:31:03,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:03,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:31:03,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:03,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:31:03,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:31:03,046 INFO L87 Difference]: Start difference. First operand 306 states and 432 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 20:31:03,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:03,138 INFO L93 Difference]: Finished difference Result 306 states and 432 transitions. [2024-11-27 20:31:03,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:31:03,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-11-27 20:31:03,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:03,141 INFO L225 Difference]: With dead ends: 306 [2024-11-27 20:31:03,141 INFO L226 Difference]: Without dead ends: 305 [2024-11-27 20:31:03,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:31:03,142 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 111 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:03,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 187 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:31:03,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-27 20:31:03,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-27 20:31:03,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 248 states have (on average 1.435483870967742) internal successors, (356), 267 states have internal predecessors, (356), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 20:31:03,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 420 transitions. [2024-11-27 20:31:03,168 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 420 transitions. Word has length 52 [2024-11-27 20:31:03,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:03,168 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 420 transitions. [2024-11-27 20:31:03,168 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), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 20:31:03,169 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 420 transitions. [2024-11-27 20:31:03,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-27 20:31:03,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:03,169 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:03,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:03,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:31:03,373 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:03,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:03,374 INFO L85 PathProgramCache]: Analyzing trace with hash -716680582, now seen corresponding path program 1 times [2024-11-27 20:31:03,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:03,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091166916] [2024-11-27 20:31:03,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:03,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:31:03,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091166916] [2024-11-27 20:31:03,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091166916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8755647] [2024-11-27 20:31:03,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:03,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:03,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:03,456 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:03,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:31:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:03,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:31:03,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:03,571 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:31:03,571 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:31:03,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8755647] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:03,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:31:03,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 20:31:03,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750583224] [2024-11-27 20:31:03,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:03,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:31:03,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:03,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:31:03,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:31:03,679 INFO L87 Difference]: Start difference. First operand 305 states and 420 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-27 20:31:03,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:03,899 INFO L93 Difference]: Finished difference Result 472 states and 642 transitions. [2024-11-27 20:31:03,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:31:03,900 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 52 [2024-11-27 20:31:03,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:03,903 INFO L225 Difference]: With dead ends: 472 [2024-11-27 20:31:03,903 INFO L226 Difference]: Without dead ends: 470 [2024-11-27 20:31:03,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:31:03,904 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 193 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:03,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 266 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:31:03,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-27 20:31:03,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 411. [2024-11-27 20:31:03,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 341 states have (on average 1.4486803519061584) internal successors, (494), 360 states have internal predecessors, (494), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 20:31:03,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 584 transitions. [2024-11-27 20:31:03,950 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 584 transitions. Word has length 52 [2024-11-27 20:31:03,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:03,951 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 584 transitions. [2024-11-27 20:31:03,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-27 20:31:03,951 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 584 transitions. [2024-11-27 20:31:03,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-27 20:31:03,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:03,952 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:03,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:31:04,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 20:31:04,153 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:04,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:04,154 INFO L85 PathProgramCache]: Analyzing trace with hash -742309164, now seen corresponding path program 1 times [2024-11-27 20:31:04,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:04,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927599083] [2024-11-27 20:31:04,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:04,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:31:04,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:04,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927599083] [2024-11-27 20:31:04,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927599083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:04,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519052599] [2024-11-27 20:31:04,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:04,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:04,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:04,309 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:04,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:31:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:04,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:31:04,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:04,506 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:31:04,506 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:04,669 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:31:04,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519052599] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:04,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:31:04,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-27 20:31:04,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300325187] [2024-11-27 20:31:04,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:04,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 20:31:04,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:04,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 20:31:04,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:31:04,672 INFO L87 Difference]: Start difference. First operand 411 states and 584 transitions. Second operand has 19 states, 18 states have (on average 4.111111111111111) internal successors, (74), 19 states have internal predecessors, (74), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-27 20:31:05,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:05,096 INFO L93 Difference]: Finished difference Result 475 states and 638 transitions. [2024-11-27 20:31:05,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 20:31:05,096 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.111111111111111) internal successors, (74), 19 states have internal predecessors, (74), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 53 [2024-11-27 20:31:05,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:05,099 INFO L225 Difference]: With dead ends: 475 [2024-11-27 20:31:05,099 INFO L226 Difference]: Without dead ends: 469 [2024-11-27 20:31:05,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:31:05,101 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 341 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:05,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 608 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:31:05,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-27 20:31:05,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 440. [2024-11-27 20:31:05,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 368 states have (on average 1.4048913043478262) internal successors, (517), 387 states have internal predecessors, (517), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 20:31:05,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 607 transitions. [2024-11-27 20:31:05,138 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 607 transitions. Word has length 53 [2024-11-27 20:31:05,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:05,139 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 607 transitions. [2024-11-27 20:31:05,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.111111111111111) internal successors, (74), 19 states have internal predecessors, (74), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-27 20:31:05,139 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 607 transitions. [2024-11-27 20:31:05,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-27 20:31:05,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:05,140 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:31:05,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:05,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 20:31:05,345 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:05,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:05,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1217958983, now seen corresponding path program 2 times [2024-11-27 20:31:05,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:05,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613195165] [2024-11-27 20:31:05,346 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:31:05,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:05,370 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:31:05,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:31:05,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513162558] [2024-11-27 20:31:05,374 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:31:05,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:05,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:05,377 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:05,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:31:05,448 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:31:05,448 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:31:05,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:31:05,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:05,652 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:31:05,652 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:05,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:05,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613195165] [2024-11-27 20:31:05,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:31:05,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513162558] [2024-11-27 20:31:05,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513162558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:05,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:05,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:31:05,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073455757] [2024-11-27 20:31:05,938 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:05,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:31:05,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:05,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:31:05,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:31:05,939 INFO L87 Difference]: Start difference. First operand 440 states and 607 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 20:31:06,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:06,178 INFO L93 Difference]: Finished difference Result 581 states and 792 transitions. [2024-11-27 20:31:06,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:31:06,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 70 [2024-11-27 20:31:06,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:06,182 INFO L225 Difference]: With dead ends: 581 [2024-11-27 20:31:06,182 INFO L226 Difference]: Without dead ends: 577 [2024-11-27 20:31:06,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:31:06,184 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 106 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:06,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 183 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:31:06,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-27 20:31:06,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 490. [2024-11-27 20:31:06,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 412 states have (on average 1.3907766990291262) internal successors, (573), 431 states have internal predecessors, (573), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 20:31:06,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 675 transitions. [2024-11-27 20:31:06,262 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 675 transitions. Word has length 70 [2024-11-27 20:31:06,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:06,263 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 675 transitions. [2024-11-27 20:31:06,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 20:31:06,263 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 675 transitions. [2024-11-27 20:31:06,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-27 20:31:06,264 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:06,264 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:06,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:06,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:06,465 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:06,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:06,465 INFO L85 PathProgramCache]: Analyzing trace with hash 533823658, now seen corresponding path program 1 times [2024-11-27 20:31:06,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:06,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308927487] [2024-11-27 20:31:06,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:06,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:06,534 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-27 20:31:06,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:06,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308927487] [2024-11-27 20:31:06,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308927487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:06,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:06,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:31:06,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143185716] [2024-11-27 20:31:06,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:06,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:31:06,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:06,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:31:06,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:31:06,538 INFO L87 Difference]: Start difference. First operand 490 states and 675 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:06,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:06,658 INFO L93 Difference]: Finished difference Result 490 states and 675 transitions. [2024-11-27 20:31:06,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:31:06,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 77 [2024-11-27 20:31:06,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:06,661 INFO L225 Difference]: With dead ends: 490 [2024-11-27 20:31:06,661 INFO L226 Difference]: Without dead ends: 489 [2024-11-27 20:31:06,662 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 [2024-11-27 20:31:06,663 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:06,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 114 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:06,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-27 20:31:06,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2024-11-27 20:31:06,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 412 states have (on average 1.3713592233009708) internal successors, (565), 430 states have internal predecessors, (565), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 20:31:06,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 667 transitions. [2024-11-27 20:31:06,707 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 667 transitions. Word has length 77 [2024-11-27 20:31:06,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:06,708 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 667 transitions. [2024-11-27 20:31:06,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:06,708 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 667 transitions. [2024-11-27 20:31:06,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-27 20:31:06,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:06,709 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:06,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 20:31:06,709 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:06,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:06,710 INFO L85 PathProgramCache]: Analyzing trace with hash -631335670, now seen corresponding path program 1 times [2024-11-27 20:31:06,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:06,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196052143] [2024-11-27 20:31:06,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:06,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:06,968 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:31:06,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:06,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196052143] [2024-11-27 20:31:06,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196052143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:06,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808019126] [2024-11-27 20:31:06,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:06,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:06,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:06,971 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:06,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:31:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:07,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:31:07,040 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:07,318 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:31:07,319 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:31:07,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808019126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:07,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:07,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 20:31:07,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921598851] [2024-11-27 20:31:07,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:07,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:31:07,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:07,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:31:07,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:31:07,321 INFO L87 Difference]: Start difference. First operand 489 states and 667 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 20:31:07,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:07,472 INFO L93 Difference]: Finished difference Result 514 states and 689 transitions. [2024-11-27 20:31:07,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:31:07,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-11-27 20:31:07,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:07,475 INFO L225 Difference]: With dead ends: 514 [2024-11-27 20:31:07,476 INFO L226 Difference]: Without dead ends: 513 [2024-11-27 20:31:07,476 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:31:07,477 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 40 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:07,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 126 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:07,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-27 20:31:07,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 489. [2024-11-27 20:31:07,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 412 states have (on average 1.3616504854368932) internal successors, (561), 430 states have internal predecessors, (561), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 20:31:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 663 transitions. [2024-11-27 20:31:07,526 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 663 transitions. Word has length 78 [2024-11-27 20:31:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:07,526 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 663 transitions. [2024-11-27 20:31:07,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 20:31:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 663 transitions. [2024-11-27 20:31:07,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-27 20:31:07,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:07,528 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:07,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:07,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:07,728 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:07,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:07,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1903430828, now seen corresponding path program 1 times [2024-11-27 20:31:07,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:07,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716754966] [2024-11-27 20:31:07,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:07,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:31:07,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:07,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716754966] [2024-11-27 20:31:07,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716754966] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:07,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451254612] [2024-11-27 20:31:07,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:07,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:07,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:07,951 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:07,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:31:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:08,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:31:08,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-27 20:31:08,257 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:31:08,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451254612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:08,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:08,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-27 20:31:08,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433746821] [2024-11-27 20:31:08,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:08,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:31:08,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:08,259 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:31:08,259 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:31:08,260 INFO L87 Difference]: Start difference. First operand 489 states and 663 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:08,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:08,514 INFO L93 Difference]: Finished difference Result 522 states and 700 transitions. [2024-11-27 20:31:08,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:31:08,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2024-11-27 20:31:08,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:08,518 INFO L225 Difference]: With dead ends: 522 [2024-11-27 20:31:08,518 INFO L226 Difference]: Without dead ends: 521 [2024-11-27 20:31:08,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:31:08,520 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 88 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:08,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 113 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:31:08,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-27 20:31:08,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 501. [2024-11-27 20:31:08,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 424 states have (on average 1.3514150943396226) internal successors, (573), 442 states have internal predecessors, (573), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 20:31:08,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 675 transitions. [2024-11-27 20:31:08,581 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 675 transitions. Word has length 79 [2024-11-27 20:31:08,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:08,582 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 675 transitions. [2024-11-27 20:31:08,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:08,583 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 675 transitions. [2024-11-27 20:31:08,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-27 20:31:08,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:08,584 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:08,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 20:31:08,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 20:31:08,784 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:08,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:08,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1123186356, now seen corresponding path program 1 times [2024-11-27 20:31:08,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:08,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700305273] [2024-11-27 20:31:08,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:08,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:09,044 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:31:09,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:09,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700305273] [2024-11-27 20:31:09,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700305273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:09,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896734784] [2024-11-27 20:31:09,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:09,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:09,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:09,047 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:09,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:31:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:09,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:31:09,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-27 20:31:09,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:31:09,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896734784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:09,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:09,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-27 20:31:09,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128933343] [2024-11-27 20:31:09,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:09,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:31:09,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:09,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:31:09,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:31:09,349 INFO L87 Difference]: Start difference. First operand 501 states and 675 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:09,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:09,546 INFO L93 Difference]: Finished difference Result 517 states and 688 transitions. [2024-11-27 20:31:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:31:09,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 80 [2024-11-27 20:31:09,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:09,550 INFO L225 Difference]: With dead ends: 517 [2024-11-27 20:31:09,551 INFO L226 Difference]: Without dead ends: 515 [2024-11-27 20:31:09,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:31:09,552 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 43 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:09,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 110 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:09,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2024-11-27 20:31:09,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 505. [2024-11-27 20:31:09,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 428 states have (on average 1.3294392523364487) internal successors, (569), 446 states have internal predecessors, (569), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 20:31:09,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 671 transitions. [2024-11-27 20:31:09,613 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 671 transitions. Word has length 80 [2024-11-27 20:31:09,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:09,613 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 671 transitions. [2024-11-27 20:31:09,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:09,613 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 671 transitions. [2024-11-27 20:31:09,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 20:31:09,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:09,614 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:09,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 20:31:09,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-27 20:31:09,815 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:09,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:09,816 INFO L85 PathProgramCache]: Analyzing trace with hash 763367358, now seen corresponding path program 1 times [2024-11-27 20:31:09,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:09,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359625237] [2024-11-27 20:31:09,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:09,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-27 20:31:10,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:10,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359625237] [2024-11-27 20:31:10,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359625237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:10,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670840837] [2024-11-27 20:31:10,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:10,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:10,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:10,026 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:10,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:31:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:10,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:31:10,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-27 20:31:10,242 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-27 20:31:10,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670840837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:10,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:31:10,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 16 [2024-11-27 20:31:10,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60575894] [2024-11-27 20:31:10,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:10,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:31:10,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:10,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:31:10,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:31:10,427 INFO L87 Difference]: Start difference. First operand 505 states and 671 transitions. Second operand has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-27 20:31:10,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:10,761 INFO L93 Difference]: Finished difference Result 531 states and 693 transitions. [2024-11-27 20:31:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:31:10,761 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 84 [2024-11-27 20:31:10,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:10,764 INFO L225 Difference]: With dead ends: 531 [2024-11-27 20:31:10,766 INFO L226 Difference]: Without dead ends: 520 [2024-11-27 20:31:10,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 158 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:31:10,767 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 71 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:10,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 406 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:10,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-27 20:31:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 513. [2024-11-27 20:31:10,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 434 states have (on average 1.3110599078341014) internal successors, (569), 452 states have internal predecessors, (569), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 20:31:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 671 transitions. [2024-11-27 20:31:10,819 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 671 transitions. Word has length 84 [2024-11-27 20:31:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:10,820 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 671 transitions. [2024-11-27 20:31:10,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.6875) internal successors, (75), 16 states have internal predecessors, (75), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-27 20:31:10,820 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 671 transitions. [2024-11-27 20:31:10,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 20:31:10,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:10,824 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:10,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:11,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 20:31:11,025 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:11,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:11,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1328952029, now seen corresponding path program 1 times [2024-11-27 20:31:11,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:11,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617079680] [2024-11-27 20:31:11,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:11,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:11,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:31:11,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492453836] [2024-11-27 20:31:11,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:11,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:11,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:11,055 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:11,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:31:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:11,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:31:11,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-27 20:31:11,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:13,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:13,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617079680] [2024-11-27 20:31:13,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:31:13,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492453836] [2024-11-27 20:31:13,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492453836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:13,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:13,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 20:31:13,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121378138] [2024-11-27 20:31:13,707 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:13,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:31:13,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:13,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:31:13,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:31:13,708 INFO L87 Difference]: Start difference. First operand 513 states and 671 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:13,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:13,941 INFO L93 Difference]: Finished difference Result 639 states and 854 transitions. [2024-11-27 20:31:13,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:31:13,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 85 [2024-11-27 20:31:13,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:13,945 INFO L225 Difference]: With dead ends: 639 [2024-11-27 20:31:13,945 INFO L226 Difference]: Without dead ends: 638 [2024-11-27 20:31:13,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:31:13,946 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 128 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:13,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 112 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:31:13,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-27 20:31:13,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 594. [2024-11-27 20:31:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 509 states have (on average 1.337917485265226) internal successors, (681), 527 states have internal predecessors, (681), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-27 20:31:14,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 795 transitions. [2024-11-27 20:31:14,008 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 795 transitions. Word has length 85 [2024-11-27 20:31:14,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:14,009 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 795 transitions. [2024-11-27 20:31:14,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:14,010 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 795 transitions. [2024-11-27 20:31:14,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-27 20:31:14,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:14,011 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:14,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-27 20:31:14,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 20:31:14,212 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:14,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:14,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1752160147, now seen corresponding path program 1 times [2024-11-27 20:31:14,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:14,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151004475] [2024-11-27 20:31:14,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:14,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:31:14,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523558393] [2024-11-27 20:31:14,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:14,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:14,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:14,243 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:14,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 20:31:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:14,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:31:14,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:14,638 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-27 20:31:14,638 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:15,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:15,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151004475] [2024-11-27 20:31:15,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:31:15,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523558393] [2024-11-27 20:31:15,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523558393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:15,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:15,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:31:15,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227442830] [2024-11-27 20:31:15,439 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:15,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:31:15,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:15,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:31:15,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:31:15,441 INFO L87 Difference]: Start difference. First operand 594 states and 795 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:15,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:15,615 INFO L93 Difference]: Finished difference Result 604 states and 800 transitions. [2024-11-27 20:31:15,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:31:15,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 86 [2024-11-27 20:31:15,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:15,620 INFO L225 Difference]: With dead ends: 604 [2024-11-27 20:31:15,620 INFO L226 Difference]: Without dead ends: 601 [2024-11-27 20:31:15,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:31:15,621 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 71 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:15,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 94 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:15,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-27 20:31:15,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 592. [2024-11-27 20:31:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 509 states have (on average 1.2907662082514735) internal successors, (657), 525 states have internal predecessors, (657), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-27 20:31:15,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 771 transitions. [2024-11-27 20:31:15,680 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 771 transitions. Word has length 86 [2024-11-27 20:31:15,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:15,681 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 771 transitions. [2024-11-27 20:31:15,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:15,681 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 771 transitions. [2024-11-27 20:31:15,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-27 20:31:15,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:15,682 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:15,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:15,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 20:31:15,886 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:15,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:15,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1517610203, now seen corresponding path program 1 times [2024-11-27 20:31:15,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:15,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285894240] [2024-11-27 20:31:15,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:15,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:16,130 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-27 20:31:16,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:16,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285894240] [2024-11-27 20:31:16,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285894240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:16,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:16,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:31:16,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535141609] [2024-11-27 20:31:16,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:16,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:31:16,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:16,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:31:16,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:31:16,133 INFO L87 Difference]: Start difference. First operand 592 states and 771 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:16,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:16,550 INFO L93 Difference]: Finished difference Result 601 states and 779 transitions. [2024-11-27 20:31:16,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:31:16,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 87 [2024-11-27 20:31:16,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:16,555 INFO L225 Difference]: With dead ends: 601 [2024-11-27 20:31:16,555 INFO L226 Difference]: Without dead ends: 600 [2024-11-27 20:31:16,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:31:16,556 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 71 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:16,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 174 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:31:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-27 20:31:16,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 591. [2024-11-27 20:31:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 509 states have (on average 1.2593320235756384) internal successors, (641), 524 states have internal predecessors, (641), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-27 20:31:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 755 transitions. [2024-11-27 20:31:16,633 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 755 transitions. Word has length 87 [2024-11-27 20:31:16,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:16,635 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 755 transitions. [2024-11-27 20:31:16,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:16,635 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 755 transitions. [2024-11-27 20:31:16,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 20:31:16,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:16,638 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:16,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 20:31:16,639 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:16,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:16,639 INFO L85 PathProgramCache]: Analyzing trace with hash 198724053, now seen corresponding path program 1 times [2024-11-27 20:31:16,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:16,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159421046] [2024-11-27 20:31:16,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:16,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:16,892 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:31:16,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:16,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159421046] [2024-11-27 20:31:16,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159421046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:16,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043703753] [2024-11-27 20:31:16,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:16,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:16,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:16,897 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:16,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:31:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:16,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:31:16,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:17,638 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:31:17,638 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:22,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043703753] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:22,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:31:22,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 20:31:22,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910717964] [2024-11-27 20:31:22,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:22,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:31:22,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:22,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:31:22,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=314, Unknown=1, NotChecked=0, Total=380 [2024-11-27 20:31:22,632 INFO L87 Difference]: Start difference. First operand 591 states and 755 transitions. Second operand has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-27 20:31:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:24,625 INFO L93 Difference]: Finished difference Result 918 states and 1207 transitions. [2024-11-27 20:31:24,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-27 20:31:24,626 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 88 [2024-11-27 20:31:24,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:24,631 INFO L225 Difference]: With dead ends: 918 [2024-11-27 20:31:24,632 INFO L226 Difference]: Without dead ends: 909 [2024-11-27 20:31:24,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=353, Invalid=1286, Unknown=1, NotChecked=0, Total=1640 [2024-11-27 20:31:24,633 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 580 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:24,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 389 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 20:31:24,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-27 20:31:24,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 704. [2024-11-27 20:31:24,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 612 states have (on average 1.2696078431372548) internal successors, (777), 627 states have internal predecessors, (777), 67 states have call successors, (67), 9 states have call predecessors, (67), 9 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-27 20:31:24,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 911 transitions. [2024-11-27 20:31:24,714 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 911 transitions. Word has length 88 [2024-11-27 20:31:24,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:24,717 INFO L471 AbstractCegarLoop]: Abstraction has 704 states and 911 transitions. [2024-11-27 20:31:24,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.533333333333333) internal successors, (98), 16 states have internal predecessors, (98), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-27 20:31:24,718 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 911 transitions. [2024-11-27 20:31:24,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-27 20:31:24,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:24,719 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:24,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-27 20:31:24,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:24,921 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:24,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:24,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1396550732, now seen corresponding path program 1 times [2024-11-27 20:31:24,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:24,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495948878] [2024-11-27 20:31:24,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:24,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:31:24,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1727220048] [2024-11-27 20:31:24,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:24,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:24,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:24,963 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:24,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:31:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:25,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:31:25,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-27 20:31:25,659 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:26,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:26,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495948878] [2024-11-27 20:31:26,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:31:26,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727220048] [2024-11-27 20:31:26,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727220048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:26,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:26,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 20:31:26,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471480646] [2024-11-27 20:31:26,415 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:26,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:31:26,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:26,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:31:26,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:31:26,418 INFO L87 Difference]: Start difference. First operand 704 states and 911 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 20:31:27,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:27,099 INFO L93 Difference]: Finished difference Result 728 states and 926 transitions. [2024-11-27 20:31:27,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:31:27,100 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 102 [2024-11-27 20:31:27,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:27,105 INFO L225 Difference]: With dead ends: 728 [2024-11-27 20:31:27,105 INFO L226 Difference]: Without dead ends: 553 [2024-11-27 20:31:27,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:31:27,107 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 20 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:27,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 339 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:31:27,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-27 20:31:27,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 551. [2024-11-27 20:31:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 471 states have (on average 1.2590233545647558) internal successors, (593), 486 states have internal predecessors, (593), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-27 20:31:27,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 703 transitions. [2024-11-27 20:31:27,165 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 703 transitions. Word has length 102 [2024-11-27 20:31:27,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:27,165 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 703 transitions. [2024-11-27 20:31:27,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 20:31:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 703 transitions. [2024-11-27 20:31:27,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 20:31:27,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:27,168 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:27,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:27,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 20:31:27,373 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:27,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:27,373 INFO L85 PathProgramCache]: Analyzing trace with hash -2055452938, now seen corresponding path program 1 times [2024-11-27 20:31:27,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:27,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016413088] [2024-11-27 20:31:27,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:27,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 20:31:27,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:27,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016413088] [2024-11-27 20:31:27,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016413088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:27,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:31:27,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:31:27,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396808003] [2024-11-27 20:31:27,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:27,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:31:27,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:27,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:31:27,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:31:27,514 INFO L87 Difference]: Start difference. First operand 551 states and 703 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:31:27,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:27,792 INFO L93 Difference]: Finished difference Result 555 states and 704 transitions. [2024-11-27 20:31:27,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:31:27,793 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 104 [2024-11-27 20:31:27,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:27,795 INFO L225 Difference]: With dead ends: 555 [2024-11-27 20:31:27,795 INFO L226 Difference]: Without dead ends: 512 [2024-11-27 20:31:27,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:31:27,797 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 32 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:27,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 229 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:31:27,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-27 20:31:27,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 507. [2024-11-27 20:31:27,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 433 states have (on average 1.2771362586605082) internal successors, (553), 447 states have internal predecessors, (553), 51 states have call successors, (51), 8 states have call predecessors, (51), 8 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 20:31:27,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 655 transitions. [2024-11-27 20:31:27,851 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 655 transitions. Word has length 104 [2024-11-27 20:31:27,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:27,852 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 655 transitions. [2024-11-27 20:31:27,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:31:27,852 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 655 transitions. [2024-11-27 20:31:27,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-27 20:31:27,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:27,854 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1] [2024-11-27 20:31:27,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-27 20:31:27,854 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:27,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:27,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1565033674, now seen corresponding path program 1 times [2024-11-27 20:31:27,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:27,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022504810] [2024-11-27 20:31:27,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:27,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:31:27,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:27,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022504810] [2024-11-27 20:31:27,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022504810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:27,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212879425] [2024-11-27 20:31:27,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:27,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:27,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:27,972 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:27,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 20:31:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:28,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:31:28,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:31:28,161 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:31:28,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212879425] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:28,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:31:28,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-27 20:31:28,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963501351] [2024-11-27 20:31:28,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:28,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:31:28,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:28,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:31:28,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:31:28,384 INFO L87 Difference]: Start difference. First operand 507 states and 655 transitions. Second operand has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-27 20:31:28,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:28,862 INFO L93 Difference]: Finished difference Result 1057 states and 1357 transitions. [2024-11-27 20:31:28,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:31:28,863 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 106 [2024-11-27 20:31:28,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:28,868 INFO L225 Difference]: With dead ends: 1057 [2024-11-27 20:31:28,870 INFO L226 Difference]: Without dead ends: 1055 [2024-11-27 20:31:28,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:31:28,873 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 344 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:28,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 471 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:31:28,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-11-27 20:31:28,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 693. [2024-11-27 20:31:28,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 595 states have (on average 1.2873949579831934) internal successors, (766), 609 states have internal predecessors, (766), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 20:31:28,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 916 transitions. [2024-11-27 20:31:28,954 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 916 transitions. Word has length 106 [2024-11-27 20:31:28,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:28,955 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 916 transitions. [2024-11-27 20:31:28,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-27 20:31:28,959 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 916 transitions. [2024-11-27 20:31:28,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-27 20:31:28,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:28,960 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:28,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-27 20:31:29,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:29,161 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:29,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:29,162 INFO L85 PathProgramCache]: Analyzing trace with hash 932747090, now seen corresponding path program 2 times [2024-11-27 20:31:29,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:29,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881804528] [2024-11-27 20:31:29,162 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:31:29,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:29,201 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:31:29,201 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:31:29,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991176989] [2024-11-27 20:31:29,202 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:31:29,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:29,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:29,205 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:29,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 20:31:29,284 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:31:29,284 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:31:29,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 20:31:29,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:30,206 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:31:30,207 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:39,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:39,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881804528] [2024-11-27 20:31:39,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:31:39,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991176989] [2024-11-27 20:31:39,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991176989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:39,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:39,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 20:31:39,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505072228] [2024-11-27 20:31:39,429 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:39,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:31:39,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:39,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:31:39,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=218, Unknown=2, NotChecked=0, Total=272 [2024-11-27 20:31:39,430 INFO L87 Difference]: Start difference. First operand 693 states and 916 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-27 20:31:40,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:40,267 INFO L93 Difference]: Finished difference Result 721 states and 951 transitions. [2024-11-27 20:31:40,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:31:40,268 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 114 [2024-11-27 20:31:40,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:40,271 INFO L225 Difference]: With dead ends: 721 [2024-11-27 20:31:40,272 INFO L226 Difference]: Without dead ends: 720 [2024-11-27 20:31:40,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=62, Invalid=242, Unknown=2, NotChecked=0, Total=306 [2024-11-27 20:31:40,273 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 34 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:40,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 456 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:31:40,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-27 20:31:40,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 693. [2024-11-27 20:31:40,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 595 states have (on average 1.2857142857142858) internal successors, (765), 609 states have internal predecessors, (765), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 20:31:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 915 transitions. [2024-11-27 20:31:40,363 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 915 transitions. Word has length 114 [2024-11-27 20:31:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:40,364 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 915 transitions. [2024-11-27 20:31:40,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-27 20:31:40,364 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 915 transitions. [2024-11-27 20:31:40,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:31:40,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:40,368 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:40,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:40,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-27 20:31:40,573 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:40,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:40,573 INFO L85 PathProgramCache]: Analyzing trace with hash -22218040, now seen corresponding path program 1 times [2024-11-27 20:31:40,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:40,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756067245] [2024-11-27 20:31:40,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:40,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:40,839 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:31:40,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:40,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756067245] [2024-11-27 20:31:40,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756067245] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:40,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993520641] [2024-11-27 20:31:40,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:40,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:40,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:40,844 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:40,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 20:31:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:40,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:31:40,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:41,139 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-27 20:31:41,139 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:31:41,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993520641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:41,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:31:41,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 15 [2024-11-27 20:31:41,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10526215] [2024-11-27 20:31:41,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:41,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:31:41,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:41,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:31:41,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:31:41,416 INFO L87 Difference]: Start difference. First operand 693 states and 915 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 4 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-27 20:31:41,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:41,681 INFO L93 Difference]: Finished difference Result 847 states and 1110 transitions. [2024-11-27 20:31:41,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:31:41,686 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 4 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 118 [2024-11-27 20:31:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:41,690 INFO L225 Difference]: With dead ends: 847 [2024-11-27 20:31:41,690 INFO L226 Difference]: Without dead ends: 693 [2024-11-27 20:31:41,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 224 SyntacticMatches, 10 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:31:41,692 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 30 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:41,692 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 467 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:41,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-27 20:31:41,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2024-11-27 20:31:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 595 states have (on average 1.2840336134453783) internal successors, (764), 609 states have internal predecessors, (764), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 20:31:41,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 914 transitions. [2024-11-27 20:31:41,774 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 914 transitions. Word has length 118 [2024-11-27 20:31:41,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:41,774 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 914 transitions. [2024-11-27 20:31:41,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 4 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-27 20:31:41,774 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 914 transitions. [2024-11-27 20:31:41,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-27 20:31:41,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:41,778 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:41,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-27 20:31:41,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:41,979 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:41,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:41,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1074344237, now seen corresponding path program 1 times [2024-11-27 20:31:41,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:41,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158376063] [2024-11-27 20:31:41,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:41,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:42,139 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 10 proven. 37 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:42,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:42,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158376063] [2024-11-27 20:31:42,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158376063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:42,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621598505] [2024-11-27 20:31:42,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:42,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:42,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:42,143 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:42,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 20:31:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:42,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:31:42,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:42,575 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2024-11-27 20:31:42,576 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:31:42,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621598505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:31:42,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:31:42,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-27 20:31:42,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992698543] [2024-11-27 20:31:42,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:31:42,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:31:42,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:42,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:31:42,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:42,578 INFO L87 Difference]: Start difference. First operand 693 states and 914 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:42,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:42,723 INFO L93 Difference]: Finished difference Result 699 states and 916 transitions. [2024-11-27 20:31:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:31:42,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 127 [2024-11-27 20:31:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:42,727 INFO L225 Difference]: With dead ends: 699 [2024-11-27 20:31:42,727 INFO L226 Difference]: Without dead ends: 694 [2024-11-27 20:31:42,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:31:42,728 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 10 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:42,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 82 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:31:42,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-11-27 20:31:42,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 691. [2024-11-27 20:31:42,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 593 states have (on average 1.2563237774030354) internal successors, (745), 607 states have internal predecessors, (745), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 20:31:42,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 895 transitions. [2024-11-27 20:31:42,823 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 895 transitions. Word has length 127 [2024-11-27 20:31:42,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:42,826 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 895 transitions. [2024-11-27 20:31:42,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:31:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 895 transitions. [2024-11-27 20:31:42,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 20:31:42,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:42,828 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:42,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-27 20:31:43,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:43,030 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:43,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:43,031 INFO L85 PathProgramCache]: Analyzing trace with hash 664453745, now seen corresponding path program 2 times [2024-11-27 20:31:43,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:43,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958922188] [2024-11-27 20:31:43,031 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:31:43,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:43,050 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:31:43,051 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:31:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:43,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:43,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958922188] [2024-11-27 20:31:43,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958922188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:43,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078277527] [2024-11-27 20:31:43,288 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:31:43,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:43,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:43,292 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:43,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 20:31:43,372 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:31:43,372 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:31:43,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:31:43,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:43,558 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:43,558 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:43,813 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:43,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078277527] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:43,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:31:43,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2024-11-27 20:31:43,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141194389] [2024-11-27 20:31:43,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:43,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:31:43,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:43,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:31:43,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:31:43,815 INFO L87 Difference]: Start difference. First operand 691 states and 895 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-27 20:31:44,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:44,061 INFO L93 Difference]: Finished difference Result 714 states and 913 transitions. [2024-11-27 20:31:44,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:31:44,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 128 [2024-11-27 20:31:44,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:44,067 INFO L225 Difference]: With dead ends: 714 [2024-11-27 20:31:44,067 INFO L226 Difference]: Without dead ends: 707 [2024-11-27 20:31:44,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 251 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:31:44,069 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 49 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:44,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 339 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:31:44,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-11-27 20:31:44,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 691. [2024-11-27 20:31:44,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 593 states have (on average 1.2495784148397977) internal successors, (741), 607 states have internal predecessors, (741), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-27 20:31:44,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 891 transitions. [2024-11-27 20:31:44,139 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 891 transitions. Word has length 128 [2024-11-27 20:31:44,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:44,139 INFO L471 AbstractCegarLoop]: Abstraction has 691 states and 891 transitions. [2024-11-27 20:31:44,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-27 20:31:44,140 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 891 transitions. [2024-11-27 20:31:44,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:31:44,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:44,142 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2024-11-27 20:31:44,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:44,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:44,343 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:44,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:44,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1729782705, now seen corresponding path program 2 times [2024-11-27 20:31:44,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:44,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60010741] [2024-11-27 20:31:44,344 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:31:44,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:44,366 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:31:44,366 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:31:44,517 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 20:31:44,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:44,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60010741] [2024-11-27 20:31:44,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60010741] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:44,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175133294] [2024-11-27 20:31:44,518 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:31:44,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:44,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:44,521 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:44,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 20:31:44,600 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:31:44,600 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:31:44,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:31:44,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:44,743 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 20:31:44,743 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-27 20:31:44,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175133294] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:44,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:31:44,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-11-27 20:31:44,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333610765] [2024-11-27 20:31:44,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:44,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:31:44,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:44,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:31:44,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:31:44,973 INFO L87 Difference]: Start difference. First operand 691 states and 891 transitions. Second operand has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 13 states have internal predecessors, (122), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-27 20:31:45,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:45,574 INFO L93 Difference]: Finished difference Result 1533 states and 2011 transitions. [2024-11-27 20:31:45,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:31:45,575 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 13 states have internal predecessors, (122), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 130 [2024-11-27 20:31:45,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:45,581 INFO L225 Difference]: With dead ends: 1533 [2024-11-27 20:31:45,581 INFO L226 Difference]: Without dead ends: 1531 [2024-11-27 20:31:45,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:31:45,583 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 635 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:45,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 485 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:31:45,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2024-11-27 20:31:45,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 717. [2024-11-27 20:31:45,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 613 states have (on average 1.2398042414355628) internal successors, (760), 627 states have internal predecessors, (760), 81 states have call successors, (81), 8 states have call predecessors, (81), 8 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-27 20:31:45,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 922 transitions. [2024-11-27 20:31:45,673 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 922 transitions. Word has length 130 [2024-11-27 20:31:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:45,674 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 922 transitions. [2024-11-27 20:31:45,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.166666666666666) internal successors, (122), 13 states have internal predecessors, (122), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-11-27 20:31:45,674 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 922 transitions. [2024-11-27 20:31:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:31:45,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:45,677 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:45,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-27 20:31:45,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:45,882 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:45,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:45,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1726289507, now seen corresponding path program 1 times [2024-11-27 20:31:45,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:45,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946462109] [2024-11-27 20:31:45,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:45,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:46,212 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:46,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:46,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946462109] [2024-11-27 20:31:46,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946462109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:46,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740324302] [2024-11-27 20:31:46,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:46,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:46,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:46,215 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:46,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-27 20:31:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:46,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:31:46,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:46,832 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:47,558 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 34 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:47,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740324302] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:47,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:31:47,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 19 [2024-11-27 20:31:47,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471451177] [2024-11-27 20:31:47,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:47,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 20:31:47,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:47,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 20:31:47,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:31:47,563 INFO L87 Difference]: Start difference. First operand 717 states and 922 transitions. Second operand has 20 states, 19 states have (on average 10.31578947368421) internal successors, (196), 20 states have internal predecessors, (196), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-27 20:31:48,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:48,585 INFO L93 Difference]: Finished difference Result 1016 states and 1307 transitions. [2024-11-27 20:31:48,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 20:31:48,586 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 10.31578947368421) internal successors, (196), 20 states have internal predecessors, (196), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 130 [2024-11-27 20:31:48,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:48,590 INFO L225 Difference]: With dead ends: 1016 [2024-11-27 20:31:48,591 INFO L226 Difference]: Without dead ends: 906 [2024-11-27 20:31:48,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=346, Invalid=914, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:31:48,592 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 514 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:48,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 715 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:31:48,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-11-27 20:31:48,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 703. [2024-11-27 20:31:48,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 595 states have (on average 1.2638655462184873) internal successors, (752), 609 states have internal predecessors, (752), 85 states have call successors, (85), 8 states have call predecessors, (85), 8 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-27 20:31:48,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 922 transitions. [2024-11-27 20:31:48,689 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 922 transitions. Word has length 130 [2024-11-27 20:31:48,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:48,689 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 922 transitions. [2024-11-27 20:31:48,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 10.31578947368421) internal successors, (196), 20 states have internal predecessors, (196), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-27 20:31:48,689 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 922 transitions. [2024-11-27 20:31:48,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-27 20:31:48,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:48,691 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:48,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:48,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:48,895 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:48,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:48,896 INFO L85 PathProgramCache]: Analyzing trace with hash -397359431, now seen corresponding path program 1 times [2024-11-27 20:31:48,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:48,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450826272] [2024-11-27 20:31:48,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:48,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-27 20:31:49,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:49,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450826272] [2024-11-27 20:31:49,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450826272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:49,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012699899] [2024-11-27 20:31:49,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:49,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:49,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:49,239 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:49,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 20:31:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:49,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:31:49,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:49,749 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:49,749 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:54,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012699899] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:54,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:31:54,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-11-27 20:31:54,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707949710] [2024-11-27 20:31:54,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:54,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:31:54,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:54,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:31:54,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:31:54,228 INFO L87 Difference]: Start difference. First operand 703 states and 922 transitions. Second operand has 21 states, 20 states have (on average 10.1) internal successors, (202), 21 states have internal predecessors, (202), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-27 20:31:54,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:54,904 INFO L93 Difference]: Finished difference Result 948 states and 1273 transitions. [2024-11-27 20:31:54,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:31:54,905 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 10.1) internal successors, (202), 21 states have internal predecessors, (202), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 135 [2024-11-27 20:31:54,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:54,910 INFO L225 Difference]: With dead ends: 948 [2024-11-27 20:31:54,911 INFO L226 Difference]: Without dead ends: 947 [2024-11-27 20:31:54,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:31:54,913 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 416 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:54,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 426 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:31:54,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-27 20:31:55,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 702. [2024-11-27 20:31:55,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 595 states have (on average 1.2571428571428571) internal successors, (748), 608 states have internal predecessors, (748), 85 states have call successors, (85), 8 states have call predecessors, (85), 8 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-27 20:31:55,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 918 transitions. [2024-11-27 20:31:55,020 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 918 transitions. Word has length 135 [2024-11-27 20:31:55,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:55,021 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 918 transitions. [2024-11-27 20:31:55,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 10.1) internal successors, (202), 21 states have internal predecessors, (202), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-11-27 20:31:55,021 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 918 transitions. [2024-11-27 20:31:55,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-27 20:31:55,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:55,023 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:31:55,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-27 20:31:55,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-27 20:31:55,224 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:55,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:55,224 INFO L85 PathProgramCache]: Analyzing trace with hash -397103227, now seen corresponding path program 1 times [2024-11-27 20:31:55,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:55,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804108834] [2024-11-27 20:31:55,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:55,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:55,581 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:55,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:55,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804108834] [2024-11-27 20:31:55,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804108834] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:55,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432336290] [2024-11-27 20:31:55,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:55,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:55,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:55,584 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:55,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-27 20:31:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:55,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:31:55,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 6 proven. 320 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-27 20:31:56,050 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:31:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 6 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:56,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432336290] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:31:56,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:31:56,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 35 [2024-11-27 20:31:56,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251916837] [2024-11-27 20:31:56,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:31:56,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-27 20:31:56,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:31:56,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-27 20:31:56,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:31:56,488 INFO L87 Difference]: Start difference. First operand 702 states and 918 transitions. Second operand has 36 states, 35 states have (on average 6.4) internal successors, (224), 36 states have internal predecessors, (224), 14 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 14 states have call predecessors, (39), 14 states have call successors, (39) [2024-11-27 20:31:57,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:31:57,618 INFO L93 Difference]: Finished difference Result 2524 states and 3380 transitions. [2024-11-27 20:31:57,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-27 20:31:57,619 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.4) internal successors, (224), 36 states have internal predecessors, (224), 14 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 14 states have call predecessors, (39), 14 states have call successors, (39) Word has length 135 [2024-11-27 20:31:57,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:31:57,627 INFO L225 Difference]: With dead ends: 2524 [2024-11-27 20:31:57,627 INFO L226 Difference]: Without dead ends: 2523 [2024-11-27 20:31:57,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=859, Invalid=2801, Unknown=0, NotChecked=0, Total=3660 [2024-11-27 20:31:57,629 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 545 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:31:57,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 795 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:31:57,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2024-11-27 20:31:57,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2425. [2024-11-27 20:31:57,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2425 states, 2144 states have (on average 1.2784514925373134) internal successors, (2741), 2157 states have internal predecessors, (2741), 251 states have call successors, (251), 16 states have call predecessors, (251), 16 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2024-11-27 20:31:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2425 states to 2425 states and 3243 transitions. [2024-11-27 20:31:57,874 INFO L78 Accepts]: Start accepts. Automaton has 2425 states and 3243 transitions. Word has length 135 [2024-11-27 20:31:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:31:57,875 INFO L471 AbstractCegarLoop]: Abstraction has 2425 states and 3243 transitions. [2024-11-27 20:31:57,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.4) internal successors, (224), 36 states have internal predecessors, (224), 14 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 14 states have call predecessors, (39), 14 states have call successors, (39) [2024-11-27 20:31:57,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2425 states and 3243 transitions. [2024-11-27 20:31:57,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 20:31:57,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:31:57,878 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:31:57,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-27 20:31:58,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-27 20:31:58,078 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:31:58,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:31:58,079 INFO L85 PathProgramCache]: Analyzing trace with hash 566759647, now seen corresponding path program 1 times [2024-11-27 20:31:58,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:31:58,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605570935] [2024-11-27 20:31:58,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:58,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:31:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:58,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:31:58,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605570935] [2024-11-27 20:31:58,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605570935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:31:58,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805786991] [2024-11-27 20:31:58,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:31:58,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:31:58,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:31:58,439 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:31:58,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 20:31:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:31:58,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:31:58,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:31:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:31:58,946 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:32:01,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805786991] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:01,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:32:01,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-11-27 20:32:01,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403500337] [2024-11-27 20:32:01,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:01,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:32:01,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:01,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:32:01,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=298, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:32:01,509 INFO L87 Difference]: Start difference. First operand 2425 states and 3243 transitions. Second operand has 22 states, 21 states have (on average 10.19047619047619) internal successors, (214), 22 states have internal predecessors, (214), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-27 20:32:03,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:03,476 INFO L93 Difference]: Finished difference Result 3281 states and 4368 transitions. [2024-11-27 20:32:03,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:32:03,477 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.19047619047619) internal successors, (214), 22 states have internal predecessors, (214), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 136 [2024-11-27 20:32:03,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:03,488 INFO L225 Difference]: With dead ends: 3281 [2024-11-27 20:32:03,488 INFO L226 Difference]: Without dead ends: 3280 [2024-11-27 20:32:03,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=397, Invalid=659, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 20:32:03,490 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 450 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 896 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:03,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 896 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:32:03,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3280 states. [2024-11-27 20:32:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3280 to 2955. [2024-11-27 20:32:03,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2955 states, 2628 states have (on average 1.2743531202435312) internal successors, (3349), 2641 states have internal predecessors, (3349), 297 states have call successors, (297), 16 states have call predecessors, (297), 16 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-11-27 20:32:03,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2955 states to 2955 states and 3943 transitions. [2024-11-27 20:32:03,778 INFO L78 Accepts]: Start accepts. Automaton has 2955 states and 3943 transitions. Word has length 136 [2024-11-27 20:32:03,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:03,779 INFO L471 AbstractCegarLoop]: Abstraction has 2955 states and 3943 transitions. [2024-11-27 20:32:03,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.19047619047619) internal successors, (214), 22 states have internal predecessors, (214), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-27 20:32:03,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2955 states and 3943 transitions. [2024-11-27 20:32:03,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-27 20:32:03,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:03,780 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:03,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-27 20:32:03,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-27 20:32:03,984 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:32:03,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:03,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1945923821, now seen corresponding path program 1 times [2024-11-27 20:32:03,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:03,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057183814] [2024-11-27 20:32:03,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:03,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:04,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25233613] [2024-11-27 20:32:04,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:04,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:04,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:04,011 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:04,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-27 20:32:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:04,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:32:04,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:04,691 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:32:04,691 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:05,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:05,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057183814] [2024-11-27 20:32:05,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:05,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25233613] [2024-11-27 20:32:05,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25233613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:05,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:05,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 20:32:05,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936787175] [2024-11-27 20:32:05,528 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:05,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:32:05,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:05,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:32:05,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:32:05,529 INFO L87 Difference]: Start difference. First operand 2955 states and 3943 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 20:32:06,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:06,314 INFO L93 Difference]: Finished difference Result 2980 states and 3973 transitions. [2024-11-27 20:32:06,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:32:06,315 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 137 [2024-11-27 20:32:06,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:06,328 INFO L225 Difference]: With dead ends: 2980 [2024-11-27 20:32:06,328 INFO L226 Difference]: Without dead ends: 2979 [2024-11-27 20:32:06,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:32:06,330 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 37 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:06,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 567 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:32:06,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2024-11-27 20:32:06,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2964. [2024-11-27 20:32:06,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2637 states have (on average 1.273795980280622) internal successors, (3359), 2650 states have internal predecessors, (3359), 297 states have call successors, (297), 16 states have call predecessors, (297), 16 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-11-27 20:32:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3953 transitions. [2024-11-27 20:32:06,661 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3953 transitions. Word has length 137 [2024-11-27 20:32:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:06,662 INFO L471 AbstractCegarLoop]: Abstraction has 2964 states and 3953 transitions. [2024-11-27 20:32:06,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 20:32:06,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3953 transitions. [2024-11-27 20:32:06,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-27 20:32:06,663 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:06,663 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:06,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-27 20:32:06,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-27 20:32:06,867 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:32:06,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:06,868 INFO L85 PathProgramCache]: Analyzing trace with hash 635890836, now seen corresponding path program 1 times [2024-11-27 20:32:06,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:06,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968085800] [2024-11-27 20:32:06,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:06,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:06,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736581629] [2024-11-27 20:32:06,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:06,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:06,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:06,906 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:06,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 20:32:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:07,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:32:07,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:32:07,857 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:12,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:12,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968085800] [2024-11-27 20:32:12,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:12,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736581629] [2024-11-27 20:32:12,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736581629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:12,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:12,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 20:32:12,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713126056] [2024-11-27 20:32:12,793 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:12,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:32:12,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:12,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:32:12,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:32:12,794 INFO L87 Difference]: Start difference. First operand 2964 states and 3953 transitions. Second operand has 13 states, 12 states have (on average 6.25) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-27 20:32:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:13,558 INFO L93 Difference]: Finished difference Result 2970 states and 3959 transitions. [2024-11-27 20:32:13,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:32:13,559 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.25) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 137 [2024-11-27 20:32:13,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:13,571 INFO L225 Difference]: With dead ends: 2970 [2024-11-27 20:32:13,571 INFO L226 Difference]: Without dead ends: 2968 [2024-11-27 20:32:13,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:32:13,573 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 48 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:13,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 490 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:32:13,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2024-11-27 20:32:13,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2964. [2024-11-27 20:32:13,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2637 states have (on average 1.273416761471369) internal successors, (3358), 2650 states have internal predecessors, (3358), 297 states have call successors, (297), 16 states have call predecessors, (297), 16 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-11-27 20:32:13,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 3952 transitions. [2024-11-27 20:32:13,787 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 3952 transitions. Word has length 137 [2024-11-27 20:32:13,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:13,787 INFO L471 AbstractCegarLoop]: Abstraction has 2964 states and 3952 transitions. [2024-11-27 20:32:13,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.25) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-27 20:32:13,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 3952 transitions. [2024-11-27 20:32:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 20:32:13,788 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:13,788 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:13,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-27 20:32:13,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:13,988 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:32:13,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:13,989 INFO L85 PathProgramCache]: Analyzing trace with hash -194096177, now seen corresponding path program 1 times [2024-11-27 20:32:13,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:13,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145384892] [2024-11-27 20:32:13,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:13,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:14,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1708312310] [2024-11-27 20:32:14,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:14,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:14,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:14,012 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:14,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-27 20:32:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:14,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:32:14,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:32:14,670 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:15,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:15,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145384892] [2024-11-27 20:32:15,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:15,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708312310] [2024-11-27 20:32:15,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708312310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:15,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:15,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 20:32:15,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416903532] [2024-11-27 20:32:15,567 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:15,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:32:15,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:15,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:32:15,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:32:15,568 INFO L87 Difference]: Start difference. First operand 2964 states and 3952 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 20:32:16,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:16,259 INFO L93 Difference]: Finished difference Result 2981 states and 3972 transitions. [2024-11-27 20:32:16,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:32:16,260 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 138 [2024-11-27 20:32:16,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:16,269 INFO L225 Difference]: With dead ends: 2981 [2024-11-27 20:32:16,269 INFO L226 Difference]: Without dead ends: 2980 [2024-11-27 20:32:16,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:32:16,271 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 32 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:16,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 480 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:32:16,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2024-11-27 20:32:16,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 2966. [2024-11-27 20:32:16,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 2639 states have (on average 1.273209549071618) internal successors, (3360), 2652 states have internal predecessors, (3360), 297 states have call successors, (297), 16 states have call predecessors, (297), 16 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-11-27 20:32:16,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 3954 transitions. [2024-11-27 20:32:16,481 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 3954 transitions. Word has length 138 [2024-11-27 20:32:16,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:16,481 INFO L471 AbstractCegarLoop]: Abstraction has 2966 states and 3954 transitions. [2024-11-27 20:32:16,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 12 states have internal predecessors, (71), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 20:32:16,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 3954 transitions. [2024-11-27 20:32:16,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 20:32:16,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:16,483 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:16,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-27 20:32:16,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:16,687 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:32:16,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:16,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1762220434, now seen corresponding path program 1 times [2024-11-27 20:32:16,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:16,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107763813] [2024-11-27 20:32:16,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:16,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:16,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484552545] [2024-11-27 20:32:16,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:16,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:16,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:16,715 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:16,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-27 20:32:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:16,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 20:32:16,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:17,804 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:32:17,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:18,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:18,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107763813] [2024-11-27 20:32:18,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:18,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484552545] [2024-11-27 20:32:18,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484552545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:18,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:18,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-27 20:32:18,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991774004] [2024-11-27 20:32:18,780 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:18,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:32:18,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:18,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:32:18,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:32:18,782 INFO L87 Difference]: Start difference. First operand 2966 states and 3954 transitions. Second operand has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 15 states have internal predecessors, (76), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-27 20:32:19,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:19,574 INFO L93 Difference]: Finished difference Result 2974 states and 3960 transitions. [2024-11-27 20:32:19,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:32:19,575 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 15 states have internal predecessors, (76), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 138 [2024-11-27 20:32:19,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:19,580 INFO L225 Difference]: With dead ends: 2974 [2024-11-27 20:32:19,580 INFO L226 Difference]: Without dead ends: 2971 [2024-11-27 20:32:19,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:32:19,582 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 45 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:19,582 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 553 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:32:19,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2971 states. [2024-11-27 20:32:19,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2971 to 2965. [2024-11-27 20:32:19,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2638 states have (on average 1.2710386656558) internal successors, (3353), 2651 states have internal predecessors, (3353), 297 states have call successors, (297), 16 states have call predecessors, (297), 16 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-11-27 20:32:19,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 3947 transitions. [2024-11-27 20:32:19,836 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 3947 transitions. Word has length 138 [2024-11-27 20:32:19,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:19,837 INFO L471 AbstractCegarLoop]: Abstraction has 2965 states and 3947 transitions. [2024-11-27 20:32:19,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.428571428571429) internal successors, (76), 15 states have internal predecessors, (76), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-27 20:32:19,837 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 3947 transitions. [2024-11-27 20:32:19,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-27 20:32:19,838 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:19,838 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:19,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-27 20:32:20,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-27 20:32:20,038 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:32:20,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:20,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1846029681, now seen corresponding path program 3 times [2024-11-27 20:32:20,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:20,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603824161] [2024-11-27 20:32:20,039 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:32:20,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:20,075 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:32:20,076 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:32:20,640 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:32:20,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:20,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603824161] [2024-11-27 20:32:20,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603824161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:20,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123725270] [2024-11-27 20:32:20,641 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:32:20,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:20,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:20,644 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:20,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-27 20:32:20,714 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 20:32:20,714 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:32:20,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:32:20,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2024-11-27 20:32:21,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:53,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123725270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:53,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:32:53,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9] total 25 [2024-11-27 20:32:53,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866285924] [2024-11-27 20:32:53,107 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:53,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 20:32:53,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:53,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 20:32:53,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=809, Unknown=5, NotChecked=0, Total=930 [2024-11-27 20:32:53,108 INFO L87 Difference]: Start difference. First operand 2965 states and 3947 transitions. Second operand has 25 states, 25 states have (on average 4.72) internal successors, (118), 25 states have internal predecessors, (118), 6 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-27 20:32:59,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:59,692 INFO L93 Difference]: Finished difference Result 3021 states and 3987 transitions. [2024-11-27 20:32:59,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-11-27 20:32:59,692 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.72) internal successors, (118), 25 states have internal predecessors, (118), 6 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) Word has length 140 [2024-11-27 20:32:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:59,696 INFO L225 Difference]: With dead ends: 3021 [2024-11-27 20:32:59,696 INFO L226 Difference]: Without dead ends: 1224 [2024-11-27 20:32:59,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1909 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=967, Invalid=5834, Unknown=5, NotChecked=0, Total=6806 [2024-11-27 20:32:59,701 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 184 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:59,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 453 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 20:32:59,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-27 20:32:59,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1143. [2024-11-27 20:32:59,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1001 states have (on average 1.2347652347652347) internal successors, (1236), 1012 states have internal predecessors, (1236), 115 states have call successors, (115), 15 states have call predecessors, (115), 15 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-27 20:32:59,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1466 transitions. [2024-11-27 20:32:59,807 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1466 transitions. Word has length 140 [2024-11-27 20:32:59,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:59,807 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1466 transitions. [2024-11-27 20:32:59,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.72) internal successors, (118), 25 states have internal predecessors, (118), 6 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 7 states have call predecessors, (19), 6 states have call successors, (19) [2024-11-27 20:32:59,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1466 transitions. [2024-11-27 20:32:59,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-27 20:32:59,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:59,808 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:59,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-27 20:33:00,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-27 20:33:00,009 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:33:00,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:00,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1842828143, now seen corresponding path program 1 times [2024-11-27 20:33:00,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:00,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010137052] [2024-11-27 20:33:00,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:00,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:33:00,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563647825] [2024-11-27 20:33:00,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:00,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:00,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:00,036 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:00,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-27 20:33:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:00,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 20:33:00,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:33:01,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:07,505 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-27 20:33:07,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:07,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010137052] [2024-11-27 20:33:07,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:33:07,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563647825] [2024-11-27 20:33:07,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563647825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:33:07,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:33:07,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-27 20:33:07,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812367984] [2024-11-27 20:33:07,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:07,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 20:33:07,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:07,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 20:33:07,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=496, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:33:07,507 INFO L87 Difference]: Start difference. First operand 1143 states and 1466 transitions. Second operand has 26 states, 25 states have (on average 5.68) internal successors, (142), 26 states have internal predecessors, (142), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-27 20:33:10,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:21,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:26,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:33,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:39,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:47,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:47,618 INFO L93 Difference]: Finished difference Result 1208 states and 1538 transitions. [2024-11-27 20:33:47,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-27 20:33:47,619 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 5.68) internal successors, (142), 26 states have internal predecessors, (142), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 140 [2024-11-27 20:33:47,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:47,623 INFO L225 Difference]: With dead ends: 1208 [2024-11-27 20:33:47,623 INFO L226 Difference]: Without dead ends: 1175 [2024-11-27 20:33:47,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=552, Invalid=1704, Unknown=0, NotChecked=0, Total=2256 [2024-11-27 20:33:47,625 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 317 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 103 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:47,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 753 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1410 Invalid, 2 Unknown, 0 Unchecked, 22.1s Time] [2024-11-27 20:33:47,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2024-11-27 20:33:47,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1145. [2024-11-27 20:33:47,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 1003 states have (on average 1.234297108673978) internal successors, (1238), 1014 states have internal predecessors, (1238), 115 states have call successors, (115), 15 states have call predecessors, (115), 15 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-27 20:33:47,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1468 transitions. [2024-11-27 20:33:47,754 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1468 transitions. Word has length 140 [2024-11-27 20:33:47,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:47,754 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1468 transitions. [2024-11-27 20:33:47,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 5.68) internal successors, (142), 26 states have internal predecessors, (142), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-27 20:33:47,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1468 transitions. [2024-11-27 20:33:47,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-27 20:33:47,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:47,756 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:47,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-27 20:33:47,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-27 20:33:47,960 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:33:47,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:47,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1276718224, now seen corresponding path program 1 times [2024-11-27 20:33:47,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:47,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361011395] [2024-11-27 20:33:47,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:47,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:48,601 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:48,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:48,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361011395] [2024-11-27 20:33:48,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361011395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:48,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685449266] [2024-11-27 20:33:48,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:48,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:48,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:48,605 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:48,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-27 20:33:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:48,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:33:48,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:49,508 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:50,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685449266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:50,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:33:50,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 15 [2024-11-27 20:33:50,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529937377] [2024-11-27 20:33:50,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:50,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:33:50,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:50,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:33:50,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:33:50,141 INFO L87 Difference]: Start difference. First operand 1145 states and 1468 transitions. Second operand has 16 states, 15 states have (on average 7.0) internal successors, (105), 16 states have internal predecessors, (105), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-27 20:33:51,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:51,960 INFO L93 Difference]: Finished difference Result 1557 states and 2027 transitions. [2024-11-27 20:33:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:33:51,961 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.0) internal successors, (105), 16 states have internal predecessors, (105), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 140 [2024-11-27 20:33:51,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:51,964 INFO L225 Difference]: With dead ends: 1557 [2024-11-27 20:33:51,965 INFO L226 Difference]: Without dead ends: 1545 [2024-11-27 20:33:51,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2024-11-27 20:33:51,966 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 292 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:51,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 843 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:33:51,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2024-11-27 20:33:52,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1405. [2024-11-27 20:33:52,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1237 states have (on average 1.2441390460792239) internal successors, (1539), 1248 states have internal predecessors, (1539), 141 states have call successors, (141), 15 states have call predecessors, (141), 15 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-27 20:33:52,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1821 transitions. [2024-11-27 20:33:52,073 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1821 transitions. Word has length 140 [2024-11-27 20:33:52,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:52,073 INFO L471 AbstractCegarLoop]: Abstraction has 1405 states and 1821 transitions. [2024-11-27 20:33:52,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.0) internal successors, (105), 16 states have internal predecessors, (105), 6 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2024-11-27 20:33:52,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1821 transitions. [2024-11-27 20:33:52,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 20:33:52,075 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:52,075 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 20:33:52,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-27 20:33:52,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-27 20:33:52,276 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:33:52,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:52,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1989932688, now seen corresponding path program 2 times [2024-11-27 20:33:52,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:52,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148298496] [2024-11-27 20:33:52,277 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:52,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:52,301 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:52,302 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:53,058 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 55 proven. 11 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:53,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:53,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148298496] [2024-11-27 20:33:53,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148298496] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:53,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294979611] [2024-11-27 20:33:53,059 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:53,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:53,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:53,063 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:53,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-27 20:33:53,123 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:33:53,123 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:53,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:33:53,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:53,683 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-27 20:33:53,683 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:33:53,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294979611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:33:53,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:33:53,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 20 [2024-11-27 20:33:53,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970287078] [2024-11-27 20:33:53,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:33:53,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:33:53,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:53,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:33:53,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:33:53,684 INFO L87 Difference]: Start difference. First operand 1405 states and 1821 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:33:53,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:53,951 INFO L93 Difference]: Finished difference Result 1405 states and 1821 transitions. [2024-11-27 20:33:53,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:33:53,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 141 [2024-11-27 20:33:53,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:53,955 INFO L225 Difference]: With dead ends: 1405 [2024-11-27 20:33:53,956 INFO L226 Difference]: Without dead ends: 1404 [2024-11-27 20:33:53,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:33:53,957 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 76 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:53,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 86 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:33:53,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2024-11-27 20:33:54,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1404. [2024-11-27 20:33:54,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1237 states have (on average 1.2101859337105902) internal successors, (1497), 1247 states have internal predecessors, (1497), 141 states have call successors, (141), 15 states have call predecessors, (141), 15 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-27 20:33:54,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1779 transitions. [2024-11-27 20:33:54,179 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1779 transitions. Word has length 141 [2024-11-27 20:33:54,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:54,180 INFO L471 AbstractCegarLoop]: Abstraction has 1404 states and 1779 transitions. [2024-11-27 20:33:54,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:33:54,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1779 transitions. [2024-11-27 20:33:54,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-27 20:33:54,181 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:54,182 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:33:54,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-27 20:33:54,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-27 20:33:54,383 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:33:54,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1989932582, now seen corresponding path program 2 times [2024-11-27 20:33:54,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:54,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218191365] [2024-11-27 20:33:54,383 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:54,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:54,419 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:54,419 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:33:54,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892106269] [2024-11-27 20:33:54,420 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:54,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:54,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:54,426 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:54,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-27 20:33:54,522 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:54,522 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:54,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 20:33:54,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:55,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:06,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:06,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218191365] [2024-11-27 20:34:06,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:34:06,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892106269] [2024-11-27 20:34:06,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892106269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:06,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:06,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 20:34:06,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380417440] [2024-11-27 20:34:06,537 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:06,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:34:06,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:06,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:34:06,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=192, Unknown=1, NotChecked=0, Total=272 [2024-11-27 20:34:06,538 INFO L87 Difference]: Start difference. First operand 1404 states and 1779 transitions. Second operand has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-27 20:34:07,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:07,973 INFO L93 Difference]: Finished difference Result 1406 states and 1780 transitions. [2024-11-27 20:34:07,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:34:07,973 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 141 [2024-11-27 20:34:07,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:07,979 INFO L225 Difference]: With dead ends: 1406 [2024-11-27 20:34:07,979 INFO L226 Difference]: Without dead ends: 1403 [2024-11-27 20:34:07,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=87, Invalid=218, Unknown=1, NotChecked=0, Total=306 [2024-11-27 20:34:07,981 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 27 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:07,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 458 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:34:07,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2024-11-27 20:34:08,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1403. [2024-11-27 20:34:08,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1236 states have (on average 1.2087378640776698) internal successors, (1494), 1246 states have internal predecessors, (1494), 141 states have call successors, (141), 15 states have call predecessors, (141), 15 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-27 20:34:08,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 1776 transitions. [2024-11-27 20:34:08,184 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 1776 transitions. Word has length 141 [2024-11-27 20:34:08,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:08,185 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 1776 transitions. [2024-11-27 20:34:08,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-27 20:34:08,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 1776 transitions. [2024-11-27 20:34:08,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 20:34:08,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:08,186 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 20:34:08,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-27 20:34:08,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-27 20:34:08,387 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:34:08,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:08,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1348963944, now seen corresponding path program 4 times [2024-11-27 20:34:08,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:08,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641587891] [2024-11-27 20:34:08,387 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:34:08,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:08,407 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:34:08,407 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:09,169 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 62 proven. 10 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:34:09,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:09,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641587891] [2024-11-27 20:34:09,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641587891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:09,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020355616] [2024-11-27 20:34:09,170 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:34:09,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:09,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:09,173 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:09,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-27 20:34:09,305 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:34:09,305 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:09,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:34:09,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-27 20:34:09,858 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:34:10,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020355616] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:34:10,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:34:10,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 14] total 21 [2024-11-27 20:34:10,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790063211] [2024-11-27 20:34:10,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:10,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:34:10,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:10,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:34:10,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:34:10,447 INFO L87 Difference]: Start difference. First operand 1403 states and 1776 transitions. Second operand has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 21 states have internal predecessors, (111), 5 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 20:34:11,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:11,075 INFO L93 Difference]: Finished difference Result 1412 states and 1785 transitions. [2024-11-27 20:34:11,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:34:11,076 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 21 states have internal predecessors, (111), 5 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 144 [2024-11-27 20:34:11,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:11,077 INFO L225 Difference]: With dead ends: 1412 [2024-11-27 20:34:11,077 INFO L226 Difference]: Without dead ends: 257 [2024-11-27 20:34:11,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 275 SyntacticMatches, 11 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2024-11-27 20:34:11,079 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 57 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:11,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 862 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:34:11,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-27 20:34:11,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2024-11-27 20:34:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 206 states have (on average 1.0679611650485437) internal successors, (220), 211 states have internal predecessors, (220), 39 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-27 20:34:11,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 298 transitions. [2024-11-27 20:34:11,114 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 298 transitions. Word has length 144 [2024-11-27 20:34:11,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:11,114 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 298 transitions. [2024-11-27 20:34:11,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 21 states have internal predecessors, (111), 5 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 20:34:11,114 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 298 transitions. [2024-11-27 20:34:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-27 20:34:11,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:11,115 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:11,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-27 20:34:11,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-27 20:34:11,316 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:34:11,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:11,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1594949430, now seen corresponding path program 3 times [2024-11-27 20:34:11,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:11,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325640289] [2024-11-27 20:34:11,316 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:34:11,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:11,340 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 20:34:11,341 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:11,812 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 111 proven. 17 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 20:34:11,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:11,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325640289] [2024-11-27 20:34:11,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325640289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:11,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517156481] [2024-11-27 20:34:11,813 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:34:11,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:11,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:11,816 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:11,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-27 20:34:11,872 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 20:34:11,873 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:11,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:34:11,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:13,011 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 94 proven. 4 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2024-11-27 20:34:13,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:16,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517156481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:16,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:34:16,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9] total 24 [2024-11-27 20:34:16,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139920662] [2024-11-27 20:34:16,936 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:16,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 20:34:16,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:16,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 20:34:16,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=762, Unknown=0, NotChecked=0, Total=870 [2024-11-27 20:34:16,938 INFO L87 Difference]: Start difference. First operand 257 states and 298 transitions. Second operand has 24 states, 24 states have (on average 5.5) internal successors, (132), 24 states have internal predecessors, (132), 8 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 9 states have call predecessors, (25), 8 states have call successors, (25) [2024-11-27 20:34:23,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:23,071 INFO L93 Difference]: Finished difference Result 267 states and 308 transitions. [2024-11-27 20:34:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-27 20:34:23,072 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.5) internal successors, (132), 24 states have internal predecessors, (132), 8 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 9 states have call predecessors, (25), 8 states have call successors, (25) Word has length 163 [2024-11-27 20:34:23,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:23,073 INFO L225 Difference]: With dead ends: 267 [2024-11-27 20:34:23,073 INFO L226 Difference]: Without dead ends: 186 [2024-11-27 20:34:23,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=668, Invalid=4024, Unknown=0, NotChecked=0, Total=4692 [2024-11-27 20:34:23,074 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 68 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:23,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 403 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:34:23,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-27 20:34:23,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 176. [2024-11-27 20:34:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 136 states have (on average 1.0220588235294117) internal successors, (139), 137 states have internal predecessors, (139), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-27 20:34:23,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 205 transitions. [2024-11-27 20:34:23,122 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 205 transitions. Word has length 163 [2024-11-27 20:34:23,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:23,122 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 205 transitions. [2024-11-27 20:34:23,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.5) internal successors, (132), 24 states have internal predecessors, (132), 8 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 9 states have call predecessors, (25), 8 states have call successors, (25) [2024-11-27 20:34:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 205 transitions. [2024-11-27 20:34:23,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-27 20:34:23,124 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:23,124 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1] [2024-11-27 20:34:23,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-27 20:34:23,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:23,325 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-11-27 20:34:23,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:23,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1364431385, now seen corresponding path program 2 times [2024-11-27 20:34:23,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:23,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157659385] [2024-11-27 20:34:23,326 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:34:23,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:23,343 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:34:23,343 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 504 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-27 20:34:23,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:23,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157659385] [2024-11-27 20:34:23,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157659385] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:23,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169207030] [2024-11-27 20:34:23,757 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:34:23,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:23,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:23,760 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:23,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-27 20:34:23,893 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:34:23,893 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:23,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:34:23,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:24,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 1507 proven. 5 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2024-11-27 20:34:24,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 427 proven. 5 refuted. 0 times theorem prover too weak. 1476 trivial. 0 not checked. [2024-11-27 20:34:25,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169207030] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:34:25,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:34:25,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 14] total 23 [2024-11-27 20:34:25,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457877271] [2024-11-27 20:34:25,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:25,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 20:34:25,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:25,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 20:34:25,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:34:25,571 INFO L87 Difference]: Start difference. First operand 176 states and 205 transitions. Second operand has 23 states, 23 states have (on average 8.478260869565217) internal successors, (195), 23 states have internal predecessors, (195), 15 states have call successors, (63), 7 states have call predecessors, (63), 7 states have return successors, (63), 15 states have call predecessors, (63), 15 states have call successors, (63) [2024-11-27 20:34:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:26,521 INFO L93 Difference]: Finished difference Result 180 states and 208 transitions. [2024-11-27 20:34:26,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-27 20:34:26,522 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 8.478260869565217) internal successors, (195), 23 states have internal predecessors, (195), 15 states have call successors, (63), 7 states have call predecessors, (63), 7 states have return successors, (63), 15 states have call predecessors, (63), 15 states have call successors, (63) Word has length 236 [2024-11-27 20:34:26,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:26,523 INFO L225 Difference]: With dead ends: 180 [2024-11-27 20:34:26,523 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:34:26,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 448 SyntacticMatches, 11 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=455, Invalid=1525, Unknown=0, NotChecked=0, Total=1980 [2024-11-27 20:34:26,524 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 31 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:26,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 251 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:34:26,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:34:26,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:34:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-27 20:34:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:34:26,526 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2024-11-27 20:34:26,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:26,527 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:34:26,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 8.478260869565217) internal successors, (195), 23 states have internal predecessors, (195), 15 states have call successors, (63), 7 states have call predecessors, (63), 7 states have return successors, (63), 15 states have call predecessors, (63), 15 states have call successors, (63) [2024-11-27 20:34:26,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:34:26,527 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:34:26,531 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2024-11-27 20:34:26,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2024-11-27 20:34:26,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2024-11-27 20:34:26,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2024-11-27 20:34:26,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2024-11-27 20:34:26,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2024-11-27 20:34:26,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2024-11-27 20:34:26,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2024-11-27 20:34:26,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2024-11-27 20:34:26,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2024-11-27 20:34:26,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2024-11-27 20:34:26,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2024-11-27 20:34:26,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2024-11-27 20:34:26,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2024-11-27 20:34:26,534 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining) [2024-11-27 20:34:26,534 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2024-11-27 20:34:26,534 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2024-11-27 20:34:26,534 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2024-11-27 20:34:26,534 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2024-11-27 20:34:26,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2024-11-27 20:34:26,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2024-11-27 20:34:26,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2024-11-27 20:34:26,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2024-11-27 20:34:26,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2024-11-27 20:34:26,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2024-11-27 20:34:26,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2024-11-27 20:34:26,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2024-11-27 20:34:26,538 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2024-11-27 20:34:26,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-27 20:34:26,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:26,741 INFO L422 BasicCegarLoop]: Path program histogram: [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:26,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:34:38,594 WARN L286 SmtUtils]: Spent 11.67s on a formula simplification. DAG size of input: 332 DAG size of output: 231 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-27 20:34:44,879 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:34:44,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:34:44 BoogieIcfgContainer [2024-11-27 20:34:44,904 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:34:44,904 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:34:44,904 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:34:44,905 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:34:44,906 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:53" (3/4) ... [2024-11-27 20:34:44,908 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:34:44,918 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-27 20:34:44,928 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-27 20:34:44,928 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-27 20:34:44,928 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:34:44,929 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:34:44,929 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:34:45,026 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:34:45,026 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:34:45,026 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:34:45,027 INFO L158 Benchmark]: Toolchain (without parser) took 232169.49ms. Allocated memory was 142.6MB in the beginning and 604.0MB in the end (delta: 461.4MB). Free memory was 118.5MB in the beginning and 337.7MB in the end (delta: -219.2MB). Peak memory consumption was 239.7MB. Max. memory is 16.1GB. [2024-11-27 20:34:45,027 INFO L158 Benchmark]: CDTParser took 1.19ms. Allocated memory is still 142.6MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:34:45,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.11ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 107.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:34:45,027 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.60ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 105.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:34:45,027 INFO L158 Benchmark]: Boogie Preprocessor took 70.50ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 104.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:34:45,028 INFO L158 Benchmark]: RCFGBuilder took 588.46ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 88.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:34:45,028 INFO L158 Benchmark]: TraceAbstraction took 231007.92ms. Allocated memory was 142.6MB in the beginning and 604.0MB in the end (delta: 461.4MB). Free memory was 88.0MB in the beginning and 345.8MB in the end (delta: -257.8MB). Peak memory consumption was 343.0MB. Max. memory is 16.1GB. [2024-11-27 20:34:45,028 INFO L158 Benchmark]: Witness Printer took 121.56ms. Allocated memory is still 604.0MB. Free memory was 345.8MB in the beginning and 337.7MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:34:45,029 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19ms. Allocated memory is still 142.6MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.11ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 107.0MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.60ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 105.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.50ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 104.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 588.46ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 88.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 231007.92ms. Allocated memory was 142.6MB in the beginning and 604.0MB in the end (delta: 461.4MB). Free memory was 88.0MB in the beginning and 345.8MB in the end (delta: -257.8MB). Peak memory consumption was 343.0MB. Max. memory is 16.1GB. * Witness Printer took 121.56ms. Allocated memory is still 604.0MB. Free memory was 345.8MB in the beginning and 337.7MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 82 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 212.8s, OverallIterations: 52, TraceHistogramMax: 27, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 76.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 6935 SdHoareTripleChecker+Valid, 42.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6763 mSDsluCounter, 17873 SdHoareTripleChecker+Invalid, 39.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14218 mSDsCounter, 849 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17134 IncrementalHoareTripleChecker+Invalid, 17985 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 849 mSolverCounterUnsat, 3655 mSDtfsCounter, 17134 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6855 GetRequests, 5954 SyntacticMatches, 44 SemanticMatches, 857 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7544 ImplicationChecksByTransitivity, 97.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2966occurred in iteration=43, InterpolantAutomatonStates: 664, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.3s AutomataMinimizationTime, 52 MinimizatonAttempts, 3096 StatesRemovedByMinimization, 43 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 117.9s InterpolantComputationTime, 8977 NumberOfCodeBlocks, 8617 NumberOfCodeBlocksAsserted, 119 NumberOfCheckSat, 9192 ConstructedInterpolants, 0 QuantifiedInterpolants, 44810 SizeOfPredicates, 101 NumberOfNonLiveVariables, 8684 ConjunctsInSsa, 475 ConjunctsInUnsatCore, 94 InterpolantComputations, 22 PerfectInterpolantSequences, 23554/27349 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 28 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: ((((((((((((((((((0 <= ((long long) counter + 2147483647)) && (r <= 1)) && (2 == p)) && (q == 0)) && (B == 1)) && (2 == d)) && (counter <= 2)) && (0 <= (r + 2147483648))) || ((((((((d == 1) && (p == 1)) && (0 <= ((long long) counter + 2147483647))) && (counter <= 4)) && (q == 0)) && (r <= 0)) && (B == 1)) && (0 <= (r + 2147483648)))) || ((((((((p == 4) && (counter <= 6)) && (0 <= r)) && (r <= 3)) && (q == 4)) && (d == 4)) && (B == 1)) && (5 <= counter))) || (((((((counter == 3) && (p == 4)) && (2 <= r)) && (q == 0)) && (r <= 3)) && (d == 4)) && (B == 1))) || ((((((d == 1) && (p == 1)) && (counter == 5)) && (r == 0)) && (2 == q)) && (B == 1))) || (((((((d == 1) && (p == 1)) && (counter == 5)) && (q <= 4)) && (3 <= q)) && (r == 0)) && (B == 1))) || (((((((((4 <= p) && (counter <= 6)) && (r <= 2147483647)) && (2 <= r)) && (q == 0)) && ((((p >= 0) ? (p / 2) : ((p / 2) - 1)) < d) || (d == ((p >= 0) ? (p / 2) : ((p / 2) - 1))))) && (p <= 2147483647)) && (B == 1)) && (5 <= counter))) || ((((((((d == 1) && (1 <= q)) && (p == 1)) && (0 <= ((long long) counter + 2147483647))) && (counter <= 4)) && (r == 0)) && (B == 1)) && (q <= 2147483647))) || ((((((((p == 8) && (d == 8)) && (2 <= r)) && (q == 0)) && (counter <= 5)) && (4 <= counter)) && (B == 1)) && (r <= 7))) || ((((((((((counter <= 6) && ((p < d) || (d == p))) && (r <= 2147483647)) && (2 <= r)) && (2 <= p)) && (q == 0)) && (p <= 2147483647)) && (B == 1)) && (5 <= counter)) && (((long long) r + 1) <= d))) || (((((((counter == 4) && (r <= 1)) && (2 == p)) && (0 <= r)) && (2 == q)) && (B == 1)) && (2 == d))) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((((((((counter == 3) && (p == 8)) && (d == 8)) && (r <= 2147483647)) && (2 <= r)) && (q == 0)) && (B == 1)) || ((((((((d == 1) && (p == 1)) && (r <= 2147483647)) && (q == 0)) && (counter == 0)) && (A == r)) && (B == 1)) && (0 <= (r + 2147483648)))) || (((((((p == 4) && (r <= 2147483647)) && (2 <= r)) && (q == 0)) && (d == 4)) && (B == 1)) && (counter == 2))) || (((((((((((4 <= p) && (counter == 5)) && (r <= 2147483647)) && (2 <= r)) && (q == 0)) && ((((long long) 2 * d) < ((long long) r + 1)) || ((r + ((long long) d * p)) < (d + 2147483648)))) && (p <= 32)) && ((((p >= 0) ? (p / 2) : ((p / 2) - 1)) < d) || (d == ((p >= 0) ? (p / 2) : ((p / 2) - 1))))) && (d <= 67108863)) && (B == 1)) && (((d >= 0) ? (d % 2) : ((d % 2) + 2)) == 0))) || (((((((r <= 2147483647) && (2 == p)) && (q == 0)) && (counter == 1)) && (B == 1)) && (2 == d)) && (0 <= (r + 2147483648)))) || ((((((((((4 <= p) && (counter == 4)) && (r <= 2147483647)) && (2 <= r)) && (p <= 16)) && (q == 0)) && (d <= 16)) && ((((p >= 0) ? (p / 2) : ((p / 2) - 1)) < d) || (d == ((p >= 0) ? (p / 2) : ((p / 2) - 1))))) && (B == 1)) && (((d >= 0) ? (d % 2) : ((d % 2) + 2)) == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:34:45,240 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-27 20:34:45,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dcbc7a3-4d37-4c8e-aafb-06f8a608a911/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE