./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.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_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/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_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/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_994fbe74-139e-4cab-a6a9-cb0284ce8077/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 d3c61dee0c4c48de96844df391dc470a843cae078bb175116ed4a6b789669168 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:06:40,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:06:40,247 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:06:40,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:06:40,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:06:40,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:06:40,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:06:40,292 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:06:40,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:06:40,294 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:06:40,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:06:40,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:06:40,296 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:06:40,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:06:40,296 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:06:40,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:06:40,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:06:40,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:06:40,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:06:40,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:06:40,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:06:40,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:06:40,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:06:40,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:06:40,298 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:06:40,298 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:06:40,298 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:06:40,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:06:40,298 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:06:40,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:06:40,299 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:06:40,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:06:40,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:06:40,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:06:40,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:06:40,299 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:06:40,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:06:40,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:06:40,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:06:40,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:06:40,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:06:40,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:06:40,300 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:06:40,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:06:40,300 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:06:40,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:06:40,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:06:40,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:06:40,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:06:40,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:06:40,300 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_994fbe74-139e-4cab-a6a9-cb0284ce8077/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 -> d3c61dee0c4c48de96844df391dc470a843cae078bb175116ed4a6b789669168 [2024-11-27 20:06:40,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:06:40,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:06:40,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:06:40,606 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:06:40,607 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:06:40,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.c [2024-11-27 20:06:43,483 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/data/29ed5fe5f/23ce8813cbe641dbbb469912b8b9fb52/FLAG0a739f1c2 [2024-11-27 20:06:43,806 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:06:43,806 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.c [2024-11-27 20:06:43,822 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/data/29ed5fe5f/23ce8813cbe641dbbb469912b8b9fb52/FLAG0a739f1c2 [2024-11-27 20:06:43,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/data/29ed5fe5f/23ce8813cbe641dbbb469912b8b9fb52 [2024-11-27 20:06:43,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:06:43,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:06:43,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:06:43,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:06:43,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:06:43,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:06:43" (1/1) ... [2024-11-27 20:06:43,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@840cb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:43, skipping insertion in model container [2024-11-27 20:06:43,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:06:43" (1/1) ... [2024-11-27 20:06:43,911 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:06:44,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:06:44,131 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:06:44,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:06:44,188 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:06:44,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44 WrapperNode [2024-11-27 20:06:44,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:06:44,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:06:44,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:06:44,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:06:44,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,235 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 191 [2024-11-27 20:06:44,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:06:44,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:06:44,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:06:44,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:06:44,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,246 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,261 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:06:44,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,266 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,274 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:06:44,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:06:44,286 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:06:44,286 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:06:44,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (1/1) ... [2024-11-27 20:06:44,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:06:44,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:44,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:06:44,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:06:44,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:06:44,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:06:44,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:06:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:06:44,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:06:44,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:06:44,407 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:06:44,409 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:06:45,210 INFO L? ?]: Removed 239 outVars from TransFormulas that were not future-live. [2024-11-27 20:06:45,210 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:06:45,228 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:06:45,229 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:06:45,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:06:45 BoogieIcfgContainer [2024-11-27 20:06:45,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:06:45,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:06:45,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:06:45,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:06:45,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:06:43" (1/3) ... [2024-11-27 20:06:45,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa5d3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:06:45, skipping insertion in model container [2024-11-27 20:06:45,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:06:44" (2/3) ... [2024-11-27 20:06:45,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa5d3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:06:45, skipping insertion in model container [2024-11-27 20:06:45,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:06:45" (3/3) ... [2024-11-27 20:06:45,243 INFO L128 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound20.c [2024-11-27 20:06:45,260 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:06:45,264 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cohencu-ll_valuebound20.c that has 2 procedures, 302 locations, 1 initial locations, 1 loop locations, and 138 error locations. [2024-11-27 20:06:45,351 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:06:45,363 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;@24590eff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:06:45,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2024-11-27 20:06:45,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 151 states have (on average 1.9470198675496688) internal successors, (294), 289 states have internal predecessors, (294), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:06:45,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 20:06:45,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:45,374 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:06:45,375 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:45,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:45,381 INFO L85 PathProgramCache]: Analyzing trace with hash 28693835, now seen corresponding path program 1 times [2024-11-27 20:06:45,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:45,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276807816] [2024-11-27 20:06:45,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:45,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:45,526 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 20:06:45,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:45,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276807816] [2024-11-27 20:06:45,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276807816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:45,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:45,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:45,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440071892] [2024-11-27 20:06:45,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:45,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:06:45,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:45,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:06:45,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:06:45,559 INFO L87 Difference]: Start difference. First operand has 302 states, 151 states have (on average 1.9470198675496688) internal successors, (294), 289 states have internal predecessors, (294), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 20:06:45,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:45,620 INFO L93 Difference]: Finished difference Result 593 states and 638 transitions. [2024-11-27 20:06:45,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:06:45,622 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2024-11-27 20:06:45,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:45,631 INFO L225 Difference]: With dead ends: 593 [2024-11-27 20:06:45,631 INFO L226 Difference]: Without dead ends: 288 [2024-11-27 20:06:45,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:06:45,646 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:45,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:06:45,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-27 20:06:45,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-11-27 20:06:45,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 146 states have (on average 1.8972602739726028) internal successors, (277), 276 states have internal predecessors, (277), 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 20:06:45,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 297 transitions. [2024-11-27 20:06:45,718 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 297 transitions. Word has length 5 [2024-11-27 20:06:45,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:45,718 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 297 transitions. [2024-11-27 20:06:45,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 20:06:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 297 transitions. [2024-11-27 20:06:45,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 20:06:45,719 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:45,719 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:06:45,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:06:45,719 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:45,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:45,722 INFO L85 PathProgramCache]: Analyzing trace with hash 28695757, now seen corresponding path program 1 times [2024-11-27 20:06:45,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:45,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611372982] [2024-11-27 20:06:45,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:45,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:45,816 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 20:06:45,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:45,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611372982] [2024-11-27 20:06:45,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611372982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:45,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:45,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:45,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035244947] [2024-11-27 20:06:45,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:45,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:06:45,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:45,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:06:45,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:06:45,818 INFO L87 Difference]: Start difference. First operand 288 states and 297 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 20:06:45,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:45,992 INFO L93 Difference]: Finished difference Result 556 states and 575 transitions. [2024-11-27 20:06:45,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:45,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2024-11-27 20:06:45,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:45,997 INFO L225 Difference]: With dead ends: 556 [2024-11-27 20:06:46,000 INFO L226 Difference]: Without dead ends: 536 [2024-11-27 20:06:46,001 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 20:06:46,002 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 237 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:46,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 520 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:46,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-27 20:06:46,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 346. [2024-11-27 20:06:46,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 199 states have (on average 1.7989949748743719) internal successors, (358), 329 states have internal predecessors, (358), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:06:46,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 388 transitions. [2024-11-27 20:06:46,033 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 388 transitions. Word has length 5 [2024-11-27 20:06:46,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:46,033 INFO L471 AbstractCegarLoop]: Abstraction has 346 states and 388 transitions. [2024-11-27 20:06:46,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 20:06:46,034 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 388 transitions. [2024-11-27 20:06:46,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 20:06:46,035 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:46,035 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, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:46,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:06:46,035 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:46,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:46,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1949328612, now seen corresponding path program 1 times [2024-11-27 20:06:46,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:46,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700543663] [2024-11-27 20:06:46,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:46,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:06:46,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682623800] [2024-11-27 20:06:46,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:46,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:46,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:46,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:46,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:06:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:46,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:06:46,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:46,384 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 20:06:46,384 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:06:46,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:46,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700543663] [2024-11-27 20:06:46,387 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:06:46,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682623800] [2024-11-27 20:06:46,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682623800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:46,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:46,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:46,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456147090] [2024-11-27 20:06:46,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:46,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:06:46,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:46,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:06:46,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:06:46,389 INFO L87 Difference]: Start difference. First operand 346 states and 388 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 20:06:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:47,085 INFO L93 Difference]: Finished difference Result 506 states and 563 transitions. [2024-11-27 20:06:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:47,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 38 [2024-11-27 20:06:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:47,088 INFO L225 Difference]: With dead ends: 506 [2024-11-27 20:06:47,088 INFO L226 Difference]: Without dead ends: 451 [2024-11-27 20:06:47,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 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 20:06:47,090 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 134 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:47,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 267 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:06:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-27 20:06:47,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 431. [2024-11-27 20:06:47,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 279 states have (on average 1.6523297491039426) internal successors, (461), 409 states have internal predecessors, (461), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:06:47,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 501 transitions. [2024-11-27 20:06:47,111 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 501 transitions. Word has length 38 [2024-11-27 20:06:47,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:47,112 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 501 transitions. [2024-11-27 20:06:47,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 20:06:47,112 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 501 transitions. [2024-11-27 20:06:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 20:06:47,113 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:47,113 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:47,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:06:47,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:47,317 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:47,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:47,318 INFO L85 PathProgramCache]: Analyzing trace with hash 699057958, now seen corresponding path program 1 times [2024-11-27 20:06:47,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:47,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367035141] [2024-11-27 20:06:47,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:47,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:47,488 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 20:06:47,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:47,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367035141] [2024-11-27 20:06:47,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367035141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:47,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:47,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:47,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174946626] [2024-11-27 20:06:47,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:47,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:06:47,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:47,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:06:47,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:06:47,490 INFO L87 Difference]: Start difference. First operand 431 states and 501 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 20:06:47,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:47,874 INFO L93 Difference]: Finished difference Result 464 states and 508 transitions. [2024-11-27 20:06:47,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:47,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 40 [2024-11-27 20:06:47,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:47,877 INFO L225 Difference]: With dead ends: 464 [2024-11-27 20:06:47,877 INFO L226 Difference]: Without dead ends: 441 [2024-11-27 20:06:47,878 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 20:06:47,881 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 120 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:47,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 425 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:06:47,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-27 20:06:47,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 431. [2024-11-27 20:06:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 279 states have (on average 1.5698924731182795) internal successors, (438), 409 states have internal predecessors, (438), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:06:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 478 transitions. [2024-11-27 20:06:47,918 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 478 transitions. Word has length 40 [2024-11-27 20:06:47,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:47,921 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 478 transitions. [2024-11-27 20:06:47,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 20:06:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 478 transitions. [2024-11-27 20:06:47,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 20:06:47,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:47,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:47,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:06:47,923 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:47,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:47,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1779802472, now seen corresponding path program 1 times [2024-11-27 20:06:47,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:47,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245782292] [2024-11-27 20:06:47,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:47,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:48,111 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 20:06:48,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:48,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245782292] [2024-11-27 20:06:48,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245782292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:48,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:48,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:06:48,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313229739] [2024-11-27 20:06:48,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:48,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:06:48,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:48,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:06:48,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:48,115 INFO L87 Difference]: Start difference. First operand 431 states and 478 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 20:06:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:48,671 INFO L93 Difference]: Finished difference Result 443 states and 485 transitions. [2024-11-27 20:06:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:06:48,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 42 [2024-11-27 20:06:48,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:48,674 INFO L225 Difference]: With dead ends: 443 [2024-11-27 20:06:48,674 INFO L226 Difference]: Without dead ends: 441 [2024-11-27 20:06:48,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:48,676 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 252 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:48,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 367 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:06:48,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-27 20:06:48,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 431. [2024-11-27 20:06:48,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 279 states have (on average 1.5627240143369177) internal successors, (436), 409 states have internal predecessors, (436), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:06:48,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 476 transitions. [2024-11-27 20:06:48,693 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 476 transitions. Word has length 42 [2024-11-27 20:06:48,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:48,693 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 476 transitions. [2024-11-27 20:06:48,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 20:06:48,693 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 476 transitions. [2024-11-27 20:06:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 20:06:48,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:48,694 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:48,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:06:48,695 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:48,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:48,695 INFO L85 PathProgramCache]: Analyzing trace with hash -660698118, now seen corresponding path program 1 times [2024-11-27 20:06:48,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:48,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186530821] [2024-11-27 20:06:48,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:48,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:48,869 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 20:06:48,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:48,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186530821] [2024-11-27 20:06:48,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186530821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:48,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:48,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:06:48,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30392996] [2024-11-27 20:06:48,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:48,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:06:48,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:48,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:06:48,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:48,873 INFO L87 Difference]: Start difference. First operand 431 states and 476 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 20:06:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:50,633 INFO L93 Difference]: Finished difference Result 443 states and 483 transitions. [2024-11-27 20:06:50,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:06:50,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 43 [2024-11-27 20:06:50,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:50,637 INFO L225 Difference]: With dead ends: 443 [2024-11-27 20:06:50,637 INFO L226 Difference]: Without dead ends: 441 [2024-11-27 20:06:50,638 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:50,638 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 136 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:50,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 448 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:06:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-27 20:06:50,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 431. [2024-11-27 20:06:50,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 279 states have (on average 1.5555555555555556) internal successors, (434), 409 states have internal predecessors, (434), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:06:50,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 474 transitions. [2024-11-27 20:06:50,670 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 474 transitions. Word has length 43 [2024-11-27 20:06:50,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:50,670 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 474 transitions. [2024-11-27 20:06:50,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 20:06:50,671 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 474 transitions. [2024-11-27 20:06:50,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-27 20:06:50,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:50,672 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:50,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:06:50,672 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:50,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:50,672 INFO L85 PathProgramCache]: Analyzing trace with hash 977583596, now seen corresponding path program 1 times [2024-11-27 20:06:50,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:50,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946279634] [2024-11-27 20:06:50,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:50,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:06:50,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1852137875] [2024-11-27 20:06:50,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:50,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:50,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:50,702 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:50,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:06:50,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:50,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:06:50,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:51,045 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 20:06:51,045 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:06:51,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:51,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946279634] [2024-11-27 20:06:51,045 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:06:51,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852137875] [2024-11-27 20:06:51,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852137875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:51,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:51,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:51,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795582138] [2024-11-27 20:06:51,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:51,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:06:51,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:51,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:06:51,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:06:51,047 INFO L87 Difference]: Start difference. First operand 431 states and 474 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, (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 20:06:51,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:51,589 INFO L93 Difference]: Finished difference Result 448 states and 481 transitions. [2024-11-27 20:06:51,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:51,589 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, (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 46 [2024-11-27 20:06:51,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:51,591 INFO L225 Difference]: With dead ends: 448 [2024-11-27 20:06:51,592 INFO L226 Difference]: Without dead ends: 439 [2024-11-27 20:06:51,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 20:06:51,594 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 112 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:51,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 257 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:06:51,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-27 20:06:51,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 434. [2024-11-27 20:06:51,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.5283687943262412) internal successors, (431), 412 states have internal predecessors, (431), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:06:51,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 471 transitions. [2024-11-27 20:06:51,625 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 471 transitions. Word has length 46 [2024-11-27 20:06:51,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:51,625 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 471 transitions. [2024-11-27 20:06:51,626 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, (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 20:06:51,626 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 471 transitions. [2024-11-27 20:06:51,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-27 20:06:51,626 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:51,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:51,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:06:51,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:51,831 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:51,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:51,832 INFO L85 PathProgramCache]: Analyzing trace with hash 240320510, now seen corresponding path program 1 times [2024-11-27 20:06:51,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:51,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570085449] [2024-11-27 20:06:51,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:51,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:51,971 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 20:06:51,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:51,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570085449] [2024-11-27 20:06:51,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570085449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:51,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:51,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:06:51,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137455632] [2024-11-27 20:06:51,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:51,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:06:51,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:51,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:06:51,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:51,972 INFO L87 Difference]: Start difference. First operand 434 states and 471 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 20:06:52,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:52,679 INFO L93 Difference]: Finished difference Result 447 states and 472 transitions. [2024-11-27 20:06:52,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:06:52,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 47 [2024-11-27 20:06:52,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:52,682 INFO L225 Difference]: With dead ends: 447 [2024-11-27 20:06:52,682 INFO L226 Difference]: Without dead ends: 441 [2024-11-27 20:06:52,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:52,684 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 132 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:52,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 384 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:06:52,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-27 20:06:52,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 434. [2024-11-27 20:06:52,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.5070921985815602) internal successors, (425), 412 states have internal predecessors, (425), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:06:52,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 465 transitions. [2024-11-27 20:06:52,712 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 465 transitions. Word has length 47 [2024-11-27 20:06:52,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:52,713 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 465 transitions. [2024-11-27 20:06:52,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 20:06:52,713 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 465 transitions. [2024-11-27 20:06:52,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 20:06:52,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:52,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:52,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:06:52,716 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:52,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:52,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1393978366, now seen corresponding path program 1 times [2024-11-27 20:06:52,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:52,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146138749] [2024-11-27 20:06:52,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:52,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:52,946 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 20:06:52,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:52,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146138749] [2024-11-27 20:06:52,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146138749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:52,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:52,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:06:52,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572681673] [2024-11-27 20:06:52,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:52,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:06:52,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:52,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:06:52,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:52,948 INFO L87 Difference]: Start difference. First operand 434 states and 465 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 20:06:53,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:53,509 INFO L93 Difference]: Finished difference Result 445 states and 466 transitions. [2024-11-27 20:06:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:53,510 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 51 [2024-11-27 20:06:53,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:53,512 INFO L225 Difference]: With dead ends: 445 [2024-11-27 20:06:53,512 INFO L226 Difference]: Without dead ends: 372 [2024-11-27 20:06:53,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:06:53,513 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 226 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:53,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 269 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:06:53,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-27 20:06:53,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 368. [2024-11-27 20:06:53,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 219 states have (on average 1.6255707762557077) internal successors, (356), 349 states have internal predecessors, (356), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:06:53,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 390 transitions. [2024-11-27 20:06:53,531 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 390 transitions. Word has length 51 [2024-11-27 20:06:53,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:53,531 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 390 transitions. [2024-11-27 20:06:53,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 20:06:53,531 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 390 transitions. [2024-11-27 20:06:53,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-27 20:06:53,533 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:53,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:53,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:06:53,533 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:53,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:53,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1803359996, now seen corresponding path program 1 times [2024-11-27 20:06:53,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:53,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893338458] [2024-11-27 20:06:53,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:53,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:53,682 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 20:06:53,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:53,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893338458] [2024-11-27 20:06:53,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893338458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:53,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:53,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:53,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347085711] [2024-11-27 20:06:53,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:53,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:06:53,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:53,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:06:53,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:06:53,685 INFO L87 Difference]: Start difference. First operand 368 states and 390 transitions. Second operand has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 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 20:06:54,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:54,021 INFO L93 Difference]: Finished difference Result 368 states and 390 transitions. [2024-11-27 20:06:54,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:54,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 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 83 [2024-11-27 20:06:54,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:54,023 INFO L225 Difference]: With dead ends: 368 [2024-11-27 20:06:54,024 INFO L226 Difference]: Without dead ends: 361 [2024-11-27 20:06:54,024 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 20:06:54,026 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 138 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:54,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 155 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:06:54,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-27 20:06:54,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-11-27 20:06:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.5936073059360731) internal successors, (349), 342 states have internal predecessors, (349), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:06:54,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 383 transitions. [2024-11-27 20:06:54,048 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 383 transitions. Word has length 83 [2024-11-27 20:06:54,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:54,048 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 383 transitions. [2024-11-27 20:06:54,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 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 20:06:54,049 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 383 transitions. [2024-11-27 20:06:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 20:06:54,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:54,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:54,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:06:54,052 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:54,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:54,052 INFO L85 PathProgramCache]: Analyzing trace with hash -69584863, now seen corresponding path program 1 times [2024-11-27 20:06:54,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:54,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639229023] [2024-11-27 20:06:54,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:54,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:54,160 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 20:06:54,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:54,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639229023] [2024-11-27 20:06:54,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639229023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:54,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:54,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:54,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15640212] [2024-11-27 20:06:54,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:54,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:06:54,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:54,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:06:54,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:06:54,162 INFO L87 Difference]: Start difference. First operand 361 states and 383 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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 20:06:54,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:54,442 INFO L93 Difference]: Finished difference Result 368 states and 386 transitions. [2024-11-27 20:06:54,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:54,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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 84 [2024-11-27 20:06:54,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:54,444 INFO L225 Difference]: With dead ends: 368 [2024-11-27 20:06:54,445 INFO L226 Difference]: Without dead ends: 367 [2024-11-27 20:06:54,445 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 20:06:54,446 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 24 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:54,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 392 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:06:54,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-27 20:06:54,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 363. [2024-11-27 20:06:54,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 221 states have (on average 1.588235294117647) internal successors, (351), 344 states have internal predecessors, (351), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:06:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 385 transitions. [2024-11-27 20:06:54,463 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 385 transitions. Word has length 84 [2024-11-27 20:06:54,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:54,464 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 385 transitions. [2024-11-27 20:06:54,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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 20:06:54,464 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 385 transitions. [2024-11-27 20:06:54,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-27 20:06:54,465 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:54,465 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:54,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:06:54,466 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:54,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:54,466 INFO L85 PathProgramCache]: Analyzing trace with hash 2057907944, now seen corresponding path program 1 times [2024-11-27 20:06:54,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:54,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607630928] [2024-11-27 20:06:54,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:54,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:06:54,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:54,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607630928] [2024-11-27 20:06:54,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607630928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:54,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:54,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:06:54,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159813377] [2024-11-27 20:06:54,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:54,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:06:54,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:54,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:06:54,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:06:54,597 INFO L87 Difference]: Start difference. First operand 363 states and 385 transitions. Second operand has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:06:54,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:54,705 INFO L93 Difference]: Finished difference Result 363 states and 385 transitions. [2024-11-27 20:06:54,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:06:54,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 86 [2024-11-27 20:06:54,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:54,708 INFO L225 Difference]: With dead ends: 363 [2024-11-27 20:06:54,708 INFO L226 Difference]: Without dead ends: 361 [2024-11-27 20:06:54,709 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 20:06:54,709 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 192 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:54,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 262 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:54,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-27 20:06:54,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-11-27 20:06:54,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 221 states have (on average 1.5701357466063348) internal successors, (347), 342 states have internal predecessors, (347), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:06:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 381 transitions. [2024-11-27 20:06:54,729 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 381 transitions. Word has length 86 [2024-11-27 20:06:54,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:54,729 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 381 transitions. [2024-11-27 20:06:54,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:06:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 381 transitions. [2024-11-27 20:06:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 20:06:54,731 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:54,731 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:54,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:06:54,731 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:54,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2137836592, now seen corresponding path program 1 times [2024-11-27 20:06:54,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:54,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389191979] [2024-11-27 20:06:54,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:54,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:06:54,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:54,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389191979] [2024-11-27 20:06:54,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389191979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:54,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136123851] [2024-11-27 20:06:54,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:54,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:54,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:54,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:54,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:06:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:54,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:06:54,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:55,053 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:06:55,053 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:06:55,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136123851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:55,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:55,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 20:06:55,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487316106] [2024-11-27 20:06:55,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:55,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:06:55,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:55,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:06:55,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:55,057 INFO L87 Difference]: Start difference. First operand 361 states and 381 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 20:06:55,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:55,207 INFO L93 Difference]: Finished difference Result 365 states and 381 transitions. [2024-11-27 20:06:55,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:06:55,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 20:06:55,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:55,209 INFO L225 Difference]: With dead ends: 365 [2024-11-27 20:06:55,211 INFO L226 Difference]: Without dead ends: 357 [2024-11-27 20:06:55,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 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 20:06:55,211 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 258 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:55,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 394 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:55,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-27 20:06:55,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 353. [2024-11-27 20:06:55,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 221 states have (on average 1.5339366515837105) internal successors, (339), 334 states have internal predecessors, (339), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:06:55,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 373 transitions. [2024-11-27 20:06:55,227 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 373 transitions. Word has length 85 [2024-11-27 20:06:55,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:55,227 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 373 transitions. [2024-11-27 20:06:55,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 20:06:55,228 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 373 transitions. [2024-11-27 20:06:55,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-27 20:06:55,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:55,229 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:55,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:06:55,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:55,430 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:55,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:55,430 INFO L85 PathProgramCache]: Analyzing trace with hash -629362995, now seen corresponding path program 1 times [2024-11-27 20:06:55,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:55,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073530744] [2024-11-27 20:06:55,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:55,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:06:55,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073530744] [2024-11-27 20:06:55,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073530744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:55,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:55,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:06:55,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866062587] [2024-11-27 20:06:55,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:55,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:55,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:55,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:55,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:55,541 INFO L87 Difference]: Start difference. First operand 353 states and 373 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 20:06:55,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:55,772 INFO L93 Difference]: Finished difference Result 357 states and 373 transitions. [2024-11-27 20:06:55,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:06:55,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 87 [2024-11-27 20:06:55,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:55,774 INFO L225 Difference]: With dead ends: 357 [2024-11-27 20:06:55,774 INFO L226 Difference]: Without dead ends: 353 [2024-11-27 20:06:55,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:55,775 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 48 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:55,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 700 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:06:55,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-27 20:06:55,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 351. [2024-11-27 20:06:55,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 219 states have (on average 1.5296803652968036) internal successors, (335), 332 states have internal predecessors, (335), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:06:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 369 transitions. [2024-11-27 20:06:55,789 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 369 transitions. Word has length 87 [2024-11-27 20:06:55,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:55,789 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 369 transitions. [2024-11-27 20:06:55,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 20:06:55,790 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 369 transitions. [2024-11-27 20:06:55,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-27 20:06:55,790 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:55,790 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:55,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:06:55,791 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:55,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:55,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1848424963, now seen corresponding path program 1 times [2024-11-27 20:06:55,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:55,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450698676] [2024-11-27 20:06:55,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:55,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:55,881 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:06:55,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:55,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450698676] [2024-11-27 20:06:55,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450698676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:55,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866861368] [2024-11-27 20:06:55,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:55,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:55,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:55,884 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:55,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:06:55,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:55,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:06:55,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:56,056 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:06:56,056 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:56,208 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:06:56,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866861368] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:56,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:06:56,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 20:06:56,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222792727] [2024-11-27 20:06:56,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:56,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:06:56,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:56,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:06:56,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:06:56,211 INFO L87 Difference]: Start difference. First operand 351 states and 369 transitions. Second operand has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 7 states have internal predecessors, (172), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:06:56,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:56,446 INFO L93 Difference]: Finished difference Result 610 states and 648 transitions. [2024-11-27 20:06:56,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:06:56,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 7 states have internal predecessors, (172), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 86 [2024-11-27 20:06:56,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:56,449 INFO L225 Difference]: With dead ends: 610 [2024-11-27 20:06:56,449 INFO L226 Difference]: Without dead ends: 602 [2024-11-27 20:06:56,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 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 20:06:56,450 INFO L435 NwaCegarLoop]: 242 mSDtfsCounter, 467 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:56,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 743 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:06:56,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-27 20:06:56,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 409. [2024-11-27 20:06:56,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 278 states have (on average 1.5215827338129497) internal successors, (423), 385 states have internal predecessors, (423), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:06:56,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 467 transitions. [2024-11-27 20:06:56,468 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 467 transitions. Word has length 86 [2024-11-27 20:06:56,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:56,469 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 467 transitions. [2024-11-27 20:06:56,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.666666666666668) internal successors, (172), 7 states have internal predecessors, (172), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:06:56,469 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 467 transitions. [2024-11-27 20:06:56,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:06:56,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:56,470 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:56,481 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:06:56,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 20:06:56,670 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:56,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:56,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2010999569, now seen corresponding path program 1 times [2024-11-27 20:06:56,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:56,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158452875] [2024-11-27 20:06:56,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:56,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:06:56,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148702617] [2024-11-27 20:06:56,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:56,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:56,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:56,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:56,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:06:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:56,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:06:56,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:06:56,910 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:06:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:06:57,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:57,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158452875] [2024-11-27 20:06:57,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:06:57,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148702617] [2024-11-27 20:06:57,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148702617] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:06:57,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:06:57,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-27 20:06:57,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752381807] [2024-11-27 20:06:57,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:06:57,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:06:57,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:57,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:06:57,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:06:57,141 INFO L87 Difference]: Start difference. First operand 409 states and 467 transitions. Second operand has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 20:06:57,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:57,403 INFO L93 Difference]: Finished difference Result 612 states and 644 transitions. [2024-11-27 20:06:57,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:06:57,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 97 [2024-11-27 20:06:57,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:57,406 INFO L225 Difference]: With dead ends: 612 [2024-11-27 20:06:57,406 INFO L226 Difference]: Without dead ends: 607 [2024-11-27 20:06:57,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:06:57,407 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 1094 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:57,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 784 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:06:57,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-27 20:06:57,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 414. [2024-11-27 20:06:57,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 286 states have (on average 1.479020979020979) internal successors, (423), 389 states have internal predecessors, (423), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:06:57,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 469 transitions. [2024-11-27 20:06:57,428 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 469 transitions. Word has length 97 [2024-11-27 20:06:57,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:57,428 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 469 transitions. [2024-11-27 20:06:57,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.8) internal successors, (134), 6 states have internal predecessors, (134), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 20:06:57,428 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 469 transitions. [2024-11-27 20:06:57,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 20:06:57,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:57,430 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:57,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:06:57,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:57,630 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:57,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:57,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1305469991, now seen corresponding path program 1 times [2024-11-27 20:06:57,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:57,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360820253] [2024-11-27 20:06:57,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:57,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:57,853 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 20:06:57,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:57,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360820253] [2024-11-27 20:06:57,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360820253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:57,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:57,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:06:57,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557062927] [2024-11-27 20:06:57,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:57,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:57,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:57,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:57,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:57,856 INFO L87 Difference]: Start difference. First operand 414 states and 469 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 20:06:58,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:58,085 INFO L93 Difference]: Finished difference Result 420 states and 472 transitions. [2024-11-27 20:06:58,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:06:58,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 103 [2024-11-27 20:06:58,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:58,087 INFO L225 Difference]: With dead ends: 420 [2024-11-27 20:06:58,087 INFO L226 Difference]: Without dead ends: 394 [2024-11-27 20:06:58,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:58,088 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 456 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:58,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 400 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:06:58,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-27 20:06:58,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2024-11-27 20:06:58,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 268 states have (on average 1.5037313432835822) internal successors, (403), 371 states have internal predecessors, (403), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:06:58,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 445 transitions. [2024-11-27 20:06:58,108 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 445 transitions. Word has length 103 [2024-11-27 20:06:58,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:58,108 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 445 transitions. [2024-11-27 20:06:58,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 20:06:58,109 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 445 transitions. [2024-11-27 20:06:58,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:06:58,110 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:58,110 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:58,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:06:58,110 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:58,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:58,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1352412641, now seen corresponding path program 1 times [2024-11-27 20:06:58,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:58,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972746133] [2024-11-27 20:06:58,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:58,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:06:58,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514836941] [2024-11-27 20:06:58,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:58,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:58,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:58,142 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:58,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:06:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:58,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:06:58,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:06:58,585 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:06:58,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:58,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972746133] [2024-11-27 20:06:58,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:06:58,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514836941] [2024-11-27 20:06:58,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514836941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:58,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:06:58,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:06:58,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141156633] [2024-11-27 20:06:58,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:58,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:06:58,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:58,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:06:58,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:06:58,588 INFO L87 Difference]: Start difference. First operand 394 states and 445 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 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 20:06:59,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:59,477 INFO L93 Difference]: Finished difference Result 394 states and 445 transitions. [2024-11-27 20:06:59,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:06:59,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 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 118 [2024-11-27 20:06:59,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:59,480 INFO L225 Difference]: With dead ends: 394 [2024-11-27 20:06:59,480 INFO L226 Difference]: Without dead ends: 384 [2024-11-27 20:06:59,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 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 20:06:59,481 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 135 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:59,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 282 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:06:59,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-27 20:06:59,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2024-11-27 20:06:59,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 268 states have (on average 1.4514925373134329) internal successors, (389), 361 states have internal predecessors, (389), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:06:59,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 431 transitions. [2024-11-27 20:06:59,498 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 431 transitions. Word has length 118 [2024-11-27 20:06:59,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:59,498 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 431 transitions. [2024-11-27 20:06:59,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 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 20:06:59,499 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 431 transitions. [2024-11-27 20:06:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-27 20:06:59,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:06:59,500 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:59,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:06:59,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 20:06:59,701 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:06:59,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:06:59,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1024880999, now seen corresponding path program 1 times [2024-11-27 20:06:59,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:06:59,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226594582] [2024-11-27 20:06:59,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:59,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:06:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:06:59,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844107324] [2024-11-27 20:06:59,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:59,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:59,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:59,729 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:59,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:06:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:59,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:06:59,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:07:00,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:00,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:00,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226594582] [2024-11-27 20:07:00,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:00,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844107324] [2024-11-27 20:07:00,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844107324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:00,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:00,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:07:00,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852229753] [2024-11-27 20:07:00,961 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:00,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:07:00,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:00,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:07:00,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:07:00,963 INFO L87 Difference]: Start difference. First operand 384 states and 431 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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 20:07:01,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:01,839 INFO L93 Difference]: Finished difference Result 510 states and 590 transitions. [2024-11-27 20:07:01,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:07:01,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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 119 [2024-11-27 20:07:01,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:01,842 INFO L225 Difference]: With dead ends: 510 [2024-11-27 20:07:01,842 INFO L226 Difference]: Without dead ends: 487 [2024-11-27 20:07:01,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:07:01,843 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 131 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:01,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 404 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:07:01,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-27 20:07:01,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 469. [2024-11-27 20:07:01,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 348 states have (on average 1.4597701149425288) internal successors, (508), 441 states have internal predecessors, (508), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 20:07:01,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 560 transitions. [2024-11-27 20:07:01,864 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 560 transitions. Word has length 119 [2024-11-27 20:07:01,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:01,865 INFO L471 AbstractCegarLoop]: Abstraction has 469 states and 560 transitions. [2024-11-27 20:07:01,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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 20:07:01,865 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 560 transitions. [2024-11-27 20:07:01,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 20:07:01,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:01,866 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:01,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:02,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:02,067 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:02,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:02,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1706539805, now seen corresponding path program 1 times [2024-11-27 20:07:02,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:02,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494263487] [2024-11-27 20:07:02,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:02,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:07:02,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:02,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494263487] [2024-11-27 20:07:02,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494263487] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:02,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122956979] [2024-11-27 20:07:02,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:02,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:02,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:02,240 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:02,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:07:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:02,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:07:02,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:07:02,566 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:02,757 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:07:02,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122956979] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:02,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:02,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-11-27 20:07:02,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139269908] [2024-11-27 20:07:02,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:02,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:07:02,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:02,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:07:02,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:07:02,760 INFO L87 Difference]: Start difference. First operand 469 states and 560 transitions. Second operand has 8 states, 7 states have (on average 30.571428571428573) internal successors, (214), 8 states have internal predecessors, (214), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:07:03,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:03,489 INFO L93 Difference]: Finished difference Result 494 states and 567 transitions. [2024-11-27 20:07:03,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:07:03,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.571428571428573) internal successors, (214), 8 states have internal predecessors, (214), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 120 [2024-11-27 20:07:03,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:03,491 INFO L225 Difference]: With dead ends: 494 [2024-11-27 20:07:03,491 INFO L226 Difference]: Without dead ends: 489 [2024-11-27 20:07:03,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:07:03,492 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 470 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:03,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 558 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:07:03,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-27 20:07:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 465. [2024-11-27 20:07:03,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 348 states have (on average 1.4339080459770115) internal successors, (499), 437 states have internal predecessors, (499), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 20:07:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 551 transitions. [2024-11-27 20:07:03,514 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 551 transitions. Word has length 120 [2024-11-27 20:07:03,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:03,514 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 551 transitions. [2024-11-27 20:07:03,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.571428571428573) internal successors, (214), 8 states have internal predecessors, (214), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:07:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 551 transitions. [2024-11-27 20:07:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:07:03,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:03,516 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:03,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:07:03,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:03,716 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:03,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:03,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1363126309, now seen corresponding path program 1 times [2024-11-27 20:07:03,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:03,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987970797] [2024-11-27 20:07:03,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:03,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:03,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:03,857 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:07:03,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:03,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987970797] [2024-11-27 20:07:03,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987970797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:03,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205745539] [2024-11-27 20:07:03,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:03,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:03,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:03,860 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:03,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:07:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:03,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:07:03,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:07:04,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:04,351 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:07:04,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205745539] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:04,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:04,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-11-27 20:07:04,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050822763] [2024-11-27 20:07:04,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:04,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:07:04,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:04,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:07:04,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:07:04,356 INFO L87 Difference]: Start difference. First operand 465 states and 551 transitions. Second operand has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 8 states have internal predecessors, (216), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:07:05,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:05,030 INFO L93 Difference]: Finished difference Result 490 states and 558 transitions. [2024-11-27 20:07:05,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:07:05,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 8 states have internal predecessors, (216), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 121 [2024-11-27 20:07:05,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:05,034 INFO L225 Difference]: With dead ends: 490 [2024-11-27 20:07:05,034 INFO L226 Difference]: Without dead ends: 485 [2024-11-27 20:07:05,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:07:05,035 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 334 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:05,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 543 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:07:05,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-27 20:07:05,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 461. [2024-11-27 20:07:05,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 348 states have (on average 1.4080459770114941) internal successors, (490), 433 states have internal predecessors, (490), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 20:07:05,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 542 transitions. [2024-11-27 20:07:05,055 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 542 transitions. Word has length 121 [2024-11-27 20:07:05,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:05,056 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 542 transitions. [2024-11-27 20:07:05,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.857142857142858) internal successors, (216), 8 states have internal predecessors, (216), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:07:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 542 transitions. [2024-11-27 20:07:05,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-27 20:07:05,057 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:05,057 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:05,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:05,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-27 20:07:05,258 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:05,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:05,259 INFO L85 PathProgramCache]: Analyzing trace with hash 692757477, now seen corresponding path program 1 times [2024-11-27 20:07:05,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:05,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005766415] [2024-11-27 20:07:05,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:05,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:07:05,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875945240] [2024-11-27 20:07:05,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:05,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:05,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:05,291 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:05,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:07:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:05,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:07:05,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:05,886 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:07:05,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:06,233 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:07:06,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:06,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005766415] [2024-11-27 20:07:06,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:06,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875945240] [2024-11-27 20:07:06,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875945240] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:06,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:07:06,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 20:07:06,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119013998] [2024-11-27 20:07:06,234 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:06,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:07:06,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:06,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:07:06,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:07:06,236 INFO L87 Difference]: Start difference. First operand 461 states and 542 transitions. Second operand has 10 states, 9 states have (on average 18.22222222222222) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:07:09,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:09,027 INFO L93 Difference]: Finished difference Result 509 states and 549 transitions. [2024-11-27 20:07:09,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:07:09,028 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.22222222222222) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 122 [2024-11-27 20:07:09,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:09,032 INFO L225 Difference]: With dead ends: 509 [2024-11-27 20:07:09,032 INFO L226 Difference]: Without dead ends: 414 [2024-11-27 20:07:09,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:07:09,034 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 320 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:09,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 474 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 20:07:09,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-27 20:07:09,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 408. [2024-11-27 20:07:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 300 states have (on average 1.3433333333333333) internal successors, (403), 383 states have internal predecessors, (403), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:07:09,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 449 transitions. [2024-11-27 20:07:09,053 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 449 transitions. Word has length 122 [2024-11-27 20:07:09,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:09,054 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 449 transitions. [2024-11-27 20:07:09,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.22222222222222) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:07:09,054 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 449 transitions. [2024-11-27 20:07:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-27 20:07:09,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:09,056 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:09,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:09,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 20:07:09,260 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:09,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:09,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1553976926, now seen corresponding path program 1 times [2024-11-27 20:07:09,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:09,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128810550] [2024-11-27 20:07:09,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:09,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:09,353 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-27 20:07:09,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:09,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128810550] [2024-11-27 20:07:09,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128810550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:09,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:07:09,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:07:09,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601308632] [2024-11-27 20:07:09,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:09,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:07:09,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:09,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:07:09,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:07:09,354 INFO L87 Difference]: Start difference. First operand 408 states and 449 transitions. Second operand has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 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 20:07:09,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:09,658 INFO L93 Difference]: Finished difference Result 408 states and 449 transitions. [2024-11-27 20:07:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:07:09,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 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 164 [2024-11-27 20:07:09,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:09,660 INFO L225 Difference]: With dead ends: 408 [2024-11-27 20:07:09,660 INFO L226 Difference]: Without dead ends: 405 [2024-11-27 20:07:09,661 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 20:07:09,661 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 126 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:09,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 155 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:07:09,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-27 20:07:09,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2024-11-27 20:07:09,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 300 states have (on average 1.33) internal successors, (399), 380 states have internal predecessors, (399), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:07:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 445 transitions. [2024-11-27 20:07:09,679 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 445 transitions. Word has length 164 [2024-11-27 20:07:09,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:09,679 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 445 transitions. [2024-11-27 20:07:09,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 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 20:07:09,679 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 445 transitions. [2024-11-27 20:07:09,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-27 20:07:09,681 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:09,681 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:07:09,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 20:07:09,681 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:09,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:09,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1273172848, now seen corresponding path program 1 times [2024-11-27 20:07:09,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:09,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355270962] [2024-11-27 20:07:09,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:09,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:09,806 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:07:09,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:09,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355270962] [2024-11-27 20:07:09,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355270962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:09,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276503305] [2024-11-27 20:07:09,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:09,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:09,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:09,809 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:09,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:07:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:09,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:07:09,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:07:10,050 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:10,264 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:07:10,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276503305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:10,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:10,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-27 20:07:10,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871087602] [2024-11-27 20:07:10,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:10,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:07:10,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:10,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:07:10,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:07:10,267 INFO L87 Difference]: Start difference. First operand 405 states and 445 transitions. Second operand has 9 states, 8 states have (on average 34.25) internal successors, (274), 9 states have internal predecessors, (274), 7 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2024-11-27 20:07:10,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:10,700 INFO L93 Difference]: Finished difference Result 428 states and 454 transitions. [2024-11-27 20:07:10,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:07:10,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 34.25) internal successors, (274), 9 states have internal predecessors, (274), 7 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) Word has length 167 [2024-11-27 20:07:10,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:10,703 INFO L225 Difference]: With dead ends: 428 [2024-11-27 20:07:10,703 INFO L226 Difference]: Without dead ends: 426 [2024-11-27 20:07:10,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:07:10,704 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 596 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:10,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 770 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:07:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-27 20:07:10,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 403. [2024-11-27 20:07:10,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 300 states have (on average 1.3166666666666667) internal successors, (395), 378 states have internal predecessors, (395), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:07:10,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 441 transitions. [2024-11-27 20:07:10,723 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 441 transitions. Word has length 167 [2024-11-27 20:07:10,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:10,724 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 441 transitions. [2024-11-27 20:07:10,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 34.25) internal successors, (274), 9 states have internal predecessors, (274), 7 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2024-11-27 20:07:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 441 transitions. [2024-11-27 20:07:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-27 20:07:10,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:10,726 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:07:10,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:07:10,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 20:07:10,926 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:10,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:10,927 INFO L85 PathProgramCache]: Analyzing trace with hash 813652807, now seen corresponding path program 1 times [2024-11-27 20:07:10,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:10,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232686716] [2024-11-27 20:07:10,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:10,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:07:10,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1134878981] [2024-11-27 20:07:10,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:10,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:10,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:10,957 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:10,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:07:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:11,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:07:11,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:11,568 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:07:11,568 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:12,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:12,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232686716] [2024-11-27 20:07:12,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:12,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134878981] [2024-11-27 20:07:12,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134878981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:12,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:12,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:07:12,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779555830] [2024-11-27 20:07:12,461 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:12,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:07:12,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:12,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:07:12,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:07:12,462 INFO L87 Difference]: Start difference. First operand 403 states and 441 transitions. Second operand has 5 states, 4 states have (on average 29.0) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:07:13,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:13,065 INFO L93 Difference]: Finished difference Result 404 states and 441 transitions. [2024-11-27 20:07:13,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:07:13,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.0) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 168 [2024-11-27 20:07:13,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:13,067 INFO L225 Difference]: With dead ends: 404 [2024-11-27 20:07:13,067 INFO L226 Difference]: Without dead ends: 403 [2024-11-27 20:07:13,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:07:13,068 INFO L435 NwaCegarLoop]: 207 mSDtfsCounter, 34 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:13,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 433 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:07:13,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-27 20:07:13,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-27 20:07:13,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 300 states have (on average 1.3133333333333332) internal successors, (394), 378 states have internal predecessors, (394), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:07:13,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 440 transitions. [2024-11-27 20:07:13,087 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 440 transitions. Word has length 168 [2024-11-27 20:07:13,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:13,087 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 440 transitions. [2024-11-27 20:07:13,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.0) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:07:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 440 transitions. [2024-11-27 20:07:13,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-27 20:07:13,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:13,089 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:07:13,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:07:13,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 20:07:13,290 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:13,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:13,291 INFO L85 PathProgramCache]: Analyzing trace with hash -546566574, now seen corresponding path program 1 times [2024-11-27 20:07:13,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:13,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607562781] [2024-11-27 20:07:13,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:13,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:07:13,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786033396] [2024-11-27 20:07:13,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:13,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:13,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:13,329 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:13,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:07:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:13,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:07:13,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:13,995 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:07:13,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:14,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:14,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607562781] [2024-11-27 20:07:14,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:14,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786033396] [2024-11-27 20:07:14,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786033396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:14,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:14,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 20:07:14,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394014970] [2024-11-27 20:07:14,219 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:14,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:07:14,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:14,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:07:14,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:07:14,221 INFO L87 Difference]: Start difference. First operand 403 states and 440 transitions. Second operand has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:07:14,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:14,930 INFO L93 Difference]: Finished difference Result 414 states and 440 transitions. [2024-11-27 20:07:14,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:07:14,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 169 [2024-11-27 20:07:14,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:14,932 INFO L225 Difference]: With dead ends: 414 [2024-11-27 20:07:14,932 INFO L226 Difference]: Without dead ends: 413 [2024-11-27 20:07:14,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:07:14,933 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 69 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:14,933 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 518 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:07:14,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-27 20:07:14,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 403. [2024-11-27 20:07:14,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 300 states have (on average 1.31) internal successors, (393), 378 states have internal predecessors, (393), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:07:14,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 439 transitions. [2024-11-27 20:07:14,953 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 439 transitions. Word has length 169 [2024-11-27 20:07:14,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:14,953 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 439 transitions. [2024-11-27 20:07:14,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:07:14,954 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 439 transitions. [2024-11-27 20:07:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-27 20:07:14,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:14,955 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:07:14,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 20:07:15,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 20:07:15,159 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:15,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:15,160 INFO L85 PathProgramCache]: Analyzing trace with hash -543601141, now seen corresponding path program 1 times [2024-11-27 20:07:15,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:15,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353633799] [2024-11-27 20:07:15,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:15,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:07:15,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1927155515] [2024-11-27 20:07:15,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:15,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:15,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:15,197 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:15,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:07:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:15,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:07:15,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:17,117 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:07:17,118 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:18,097 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:07:18,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:18,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353633799] [2024-11-27 20:07:18,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:18,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927155515] [2024-11-27 20:07:18,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927155515] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:18,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:07:18,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2024-11-27 20:07:18,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374798727] [2024-11-27 20:07:18,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:18,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:07:18,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:18,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:07:18,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:07:18,099 INFO L87 Difference]: Start difference. First operand 403 states and 439 transitions. Second operand has 11 states, 10 states have (on average 23.6) internal successors, (236), 11 states have internal predecessors, (236), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 20:07:20,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:20,807 INFO L93 Difference]: Finished difference Result 411 states and 439 transitions. [2024-11-27 20:07:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:07:20,808 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 23.6) internal successors, (236), 11 states have internal predecessors, (236), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 172 [2024-11-27 20:07:20,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:20,810 INFO L225 Difference]: With dead ends: 411 [2024-11-27 20:07:20,810 INFO L226 Difference]: Without dead ends: 403 [2024-11-27 20:07:20,810 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:07:20,810 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 474 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:20,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 308 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 20:07:20,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-27 20:07:20,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-27 20:07:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 300 states have (on average 1.2833333333333334) internal successors, (385), 378 states have internal predecessors, (385), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:07:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 431 transitions. [2024-11-27 20:07:20,832 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 431 transitions. Word has length 172 [2024-11-27 20:07:20,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:20,833 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 431 transitions. [2024-11-27 20:07:20,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 23.6) internal successors, (236), 11 states have internal predecessors, (236), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 20:07:20,833 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 431 transitions. [2024-11-27 20:07:20,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-27 20:07:20,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:20,834 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:20,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:21,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-27 20:07:21,035 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:21,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:21,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1798400636, now seen corresponding path program 1 times [2024-11-27 20:07:21,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:21,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854746260] [2024-11-27 20:07:21,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:21,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:07:21,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757034536] [2024-11-27 20:07:21,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:21,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:21,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:21,070 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:21,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:07:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:21,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:07:21,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:07:22,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:07:22,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:22,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854746260] [2024-11-27 20:07:22,621 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:22,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757034536] [2024-11-27 20:07:22,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757034536] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:22,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:07:22,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-27 20:07:22,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392853227] [2024-11-27 20:07:22,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:22,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:07:22,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:22,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:07:22,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:07:22,623 INFO L87 Difference]: Start difference. First operand 403 states and 431 transitions. Second operand has 14 states, 13 states have (on average 20.153846153846153) internal successors, (262), 14 states have internal predecessors, (262), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-27 20:07:24,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:24,343 INFO L93 Difference]: Finished difference Result 477 states and 540 transitions. [2024-11-27 20:07:24,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:07:24,344 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 20.153846153846153) internal successors, (262), 14 states have internal predecessors, (262), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 191 [2024-11-27 20:07:24,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:24,346 INFO L225 Difference]: With dead ends: 477 [2024-11-27 20:07:24,346 INFO L226 Difference]: Without dead ends: 437 [2024-11-27 20:07:24,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:07:24,347 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 163 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:24,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 260 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 20:07:24,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-27 20:07:24,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 435. [2024-11-27 20:07:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 328 states have (on average 1.350609756097561) internal successors, (443), 406 states have internal predecessors, (443), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 20:07:24,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 497 transitions. [2024-11-27 20:07:24,375 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 497 transitions. Word has length 191 [2024-11-27 20:07:24,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:24,375 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 497 transitions. [2024-11-27 20:07:24,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 20.153846153846153) internal successors, (262), 14 states have internal predecessors, (262), 6 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2024-11-27 20:07:24,376 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 497 transitions. [2024-11-27 20:07:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-27 20:07:24,377 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:24,377 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 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, 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 20:07:24,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:24,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 20:07:24,581 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:24,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:24,582 INFO L85 PathProgramCache]: Analyzing trace with hash 153847584, now seen corresponding path program 1 times [2024-11-27 20:07:24,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:24,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656586252] [2024-11-27 20:07:24,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:24,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:07:24,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1789728798] [2024-11-27 20:07:24,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:24,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:24,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:24,621 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:24,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:07:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:24,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:07:24,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:24,931 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 20:07:24,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:25,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:25,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656586252] [2024-11-27 20:07:25,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:25,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789728798] [2024-11-27 20:07:25,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789728798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:25,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:25,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:07:25,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081083322] [2024-11-27 20:07:25,039 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:25,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:07:25,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:25,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:07:25,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:07:25,042 INFO L87 Difference]: Start difference. First operand 435 states and 497 transitions. Second operand has 5 states, 4 states have (on average 33.75) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 20:07:25,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:25,251 INFO L93 Difference]: Finished difference Result 573 states and 602 transitions. [2024-11-27 20:07:25,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:07:25,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 33.75) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 192 [2024-11-27 20:07:25,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:25,254 INFO L225 Difference]: With dead ends: 573 [2024-11-27 20:07:25,254 INFO L226 Difference]: Without dead ends: 572 [2024-11-27 20:07:25,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 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 20:07:25,255 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 188 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:25,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 673 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:07:25,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-27 20:07:25,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 435. [2024-11-27 20:07:25,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 328 states have (on average 1.3475609756097562) internal successors, (442), 406 states have internal predecessors, (442), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 20:07:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 496 transitions. [2024-11-27 20:07:25,285 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 496 transitions. Word has length 192 [2024-11-27 20:07:25,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:25,285 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 496 transitions. [2024-11-27 20:07:25,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 33.75) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 20:07:25,285 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 496 transitions. [2024-11-27 20:07:25,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 20:07:25,287 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:25,287 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:07:25,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 20:07:25,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 20:07:25,488 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:25,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:25,488 INFO L85 PathProgramCache]: Analyzing trace with hash -2112051396, now seen corresponding path program 2 times [2024-11-27 20:07:25,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:25,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432920859] [2024-11-27 20:07:25,489 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:25,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:25,526 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:25,526 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:07:25,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1613998514] [2024-11-27 20:07:25,528 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:25,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:25,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:25,532 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:25,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:07:25,676 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:25,676 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:25,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:07:25,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:26,411 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:26,411 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:26,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432920859] [2024-11-27 20:07:26,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:26,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613998514] [2024-11-27 20:07:26,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613998514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:26,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:26,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 20:07:26,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355524793] [2024-11-27 20:07:26,810 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:26,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:07:26,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:26,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:07:26,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:07:26,812 INFO L87 Difference]: Start difference. First operand 435 states and 496 transitions. Second operand has 9 states, 8 states have (on average 17.125) internal successors, (137), 9 states have internal predecessors, (137), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 20:07:28,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:28,031 INFO L93 Difference]: Finished difference Result 528 states and 608 transitions. [2024-11-27 20:07:28,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:07:28,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.125) internal successors, (137), 9 states have internal predecessors, (137), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 199 [2024-11-27 20:07:28,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:28,033 INFO L225 Difference]: With dead ends: 528 [2024-11-27 20:07:28,033 INFO L226 Difference]: Without dead ends: 507 [2024-11-27 20:07:28,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:07:28,034 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 121 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:28,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 493 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 20:07:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-27 20:07:28,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 495. [2024-11-27 20:07:28,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 385 states have (on average 1.335064935064935) internal successors, (514), 463 states have internal predecessors, (514), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-27 20:07:28,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 574 transitions. [2024-11-27 20:07:28,065 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 574 transitions. Word has length 199 [2024-11-27 20:07:28,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:28,065 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 574 transitions. [2024-11-27 20:07:28,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.125) internal successors, (137), 9 states have internal predecessors, (137), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 20:07:28,066 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 574 transitions. [2024-11-27 20:07:28,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-27 20:07:28,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:28,067 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:07:28,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:28,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:28,271 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:28,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:28,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1049083744, now seen corresponding path program 2 times [2024-11-27 20:07:28,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:28,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894361550] [2024-11-27 20:07:28,272 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:28,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:28,296 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:28,296 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:28,558 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:28,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:28,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894361550] [2024-11-27 20:07:28,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894361550] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:28,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729164581] [2024-11-27 20:07:28,559 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:28,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:28,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:28,561 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:28,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:07:28,660 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:28,660 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:28,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:07:28,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:29,276 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:29,581 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:29,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729164581] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:29,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:29,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-27 20:07:29,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848922831] [2024-11-27 20:07:29,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:29,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:07:29,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:29,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:07:29,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:07:29,584 INFO L87 Difference]: Start difference. First operand 495 states and 574 transitions. Second operand has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 13 states have internal predecessors, (377), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:07:30,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:30,991 INFO L93 Difference]: Finished difference Result 495 states and 574 transitions. [2024-11-27 20:07:30,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:07:30,994 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 13 states have internal predecessors, (377), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 200 [2024-11-27 20:07:30,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:30,996 INFO L225 Difference]: With dead ends: 495 [2024-11-27 20:07:30,996 INFO L226 Difference]: Without dead ends: 491 [2024-11-27 20:07:30,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:07:30,997 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 609 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:30,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 556 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:07:30,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-27 20:07:31,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2024-11-27 20:07:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 385 states have (on average 1.3142857142857143) internal successors, (506), 459 states have internal predecessors, (506), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-27 20:07:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 566 transitions. [2024-11-27 20:07:31,028 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 566 transitions. Word has length 200 [2024-11-27 20:07:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:31,029 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 566 transitions. [2024-11-27 20:07:31,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 13 states have internal predecessors, (377), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:07:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 566 transitions. [2024-11-27 20:07:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-27 20:07:31,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:31,030 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:07:31,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-27 20:07:31,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:31,231 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:31,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:31,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1838142398, now seen corresponding path program 2 times [2024-11-27 20:07:31,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:31,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328524884] [2024-11-27 20:07:31,232 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:31,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:31,255 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:31,255 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:31,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:31,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328524884] [2024-11-27 20:07:31,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328524884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:31,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755431815] [2024-11-27 20:07:31,490 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:31,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:31,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:31,492 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:31,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 20:07:31,582 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:31,582 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:31,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:07:31,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:32,129 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:32,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:32,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755431815] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:32,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:07:32,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-27 20:07:32,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917095430] [2024-11-27 20:07:32,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:32,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:07:32,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:32,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:07:32,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:07:32,476 INFO L87 Difference]: Start difference. First operand 491 states and 566 transitions. Second operand has 13 states, 12 states have (on average 31.583333333333332) internal successors, (379), 13 states have internal predecessors, (379), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:07:33,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:33,393 INFO L93 Difference]: Finished difference Result 548 states and 613 transitions. [2024-11-27 20:07:33,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:07:33,394 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 31.583333333333332) internal successors, (379), 13 states have internal predecessors, (379), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 201 [2024-11-27 20:07:33,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:33,396 INFO L225 Difference]: With dead ends: 548 [2024-11-27 20:07:33,396 INFO L226 Difference]: Without dead ends: 546 [2024-11-27 20:07:33,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=169, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:07:33,397 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 520 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:33,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 578 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:07:33,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-27 20:07:33,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 518. [2024-11-27 20:07:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 409 states have (on average 1.2982885085574571) internal successors, (531), 483 states have internal predecessors, (531), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-27 20:07:33,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 597 transitions. [2024-11-27 20:07:33,457 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 597 transitions. Word has length 201 [2024-11-27 20:07:33,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:33,459 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 597 transitions. [2024-11-27 20:07:33,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 31.583333333333332) internal successors, (379), 13 states have internal predecessors, (379), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:07:33,459 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 597 transitions. [2024-11-27 20:07:33,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-27 20:07:33,462 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:33,463 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:07:33,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:33,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:33,663 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:33,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:33,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1223288896, now seen corresponding path program 1 times [2024-11-27 20:07:33,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:33,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135045126] [2024-11-27 20:07:33,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:33,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:33,940 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:33,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:33,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135045126] [2024-11-27 20:07:33,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135045126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:33,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269887542] [2024-11-27 20:07:33,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:33,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:33,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:33,943 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:33,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:07:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:34,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:07:34,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:34,665 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:34,665 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:34,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269887542] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:34,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:07:34,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 20:07:34,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783962633] [2024-11-27 20:07:34,764 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:34,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:07:34,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:34,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:07:34,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:07:34,765 INFO L87 Difference]: Start difference. First operand 518 states and 597 transitions. Second operand has 11 states, 10 states have (on average 25.3) internal successors, (253), 11 states have internal predecessors, (253), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-27 20:07:37,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:37,211 INFO L93 Difference]: Finished difference Result 518 states and 597 transitions. [2024-11-27 20:07:37,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:07:37,211 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 25.3) internal successors, (253), 11 states have internal predecessors, (253), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 203 [2024-11-27 20:07:37,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:37,212 INFO L225 Difference]: With dead ends: 518 [2024-11-27 20:07:37,212 INFO L226 Difference]: Without dead ends: 506 [2024-11-27 20:07:37,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:07:37,213 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 596 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:37,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [596 Valid, 597 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 20:07:37,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-27 20:07:37,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-27 20:07:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 409 states have (on average 1.2616136919315404) internal successors, (516), 471 states have internal predecessors, (516), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-27 20:07:37,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 582 transitions. [2024-11-27 20:07:37,244 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 582 transitions. Word has length 203 [2024-11-27 20:07:37,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:37,245 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 582 transitions. [2024-11-27 20:07:37,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 25.3) internal successors, (253), 11 states have internal predecessors, (253), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-27 20:07:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 582 transitions. [2024-11-27 20:07:37,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-27 20:07:37,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:37,246 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 20:07:37,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-27 20:07:37,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:37,447 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:37,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:37,447 INFO L85 PathProgramCache]: Analyzing trace with hash 202093542, now seen corresponding path program 1 times [2024-11-27 20:07:37,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:37,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915753213] [2024-11-27 20:07:37,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:37,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:07:37,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627969836] [2024-11-27 20:07:37,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:37,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:37,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:37,488 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:37,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:07:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:37,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:07:37,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:38,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:38,916 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:07:38,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:38,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915753213] [2024-11-27 20:07:38,917 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:38,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627969836] [2024-11-27 20:07:38,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627969836] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:38,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:07:38,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 20:07:38,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026405846] [2024-11-27 20:07:38,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:38,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:07:38,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:38,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:07:38,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:07:38,921 INFO L87 Difference]: Start difference. First operand 506 states and 582 transitions. Second operand has 16 states, 15 states have (on average 18.8) internal successors, (282), 16 states have internal predecessors, (282), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:07:42,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:42,906 INFO L93 Difference]: Finished difference Result 809 states and 986 transitions. [2024-11-27 20:07:42,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:07:42,907 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.8) internal successors, (282), 16 states have internal predecessors, (282), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 206 [2024-11-27 20:07:42,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:42,911 INFO L225 Difference]: With dead ends: 809 [2024-11-27 20:07:42,911 INFO L226 Difference]: Without dead ends: 724 [2024-11-27 20:07:42,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:07:42,912 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 1103 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 2711 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 2711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:42,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1117 Valid, 998 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 2711 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-27 20:07:42,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-27 20:07:42,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 523. [2024-11-27 20:07:42,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 425 states have (on average 1.2352941176470589) internal successors, (525), 486 states have internal predecessors, (525), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:07:42,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 595 transitions. [2024-11-27 20:07:42,954 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 595 transitions. Word has length 206 [2024-11-27 20:07:42,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:42,954 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 595 transitions. [2024-11-27 20:07:42,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.8) internal successors, (282), 16 states have internal predecessors, (282), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:07:42,954 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 595 transitions. [2024-11-27 20:07:42,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-27 20:07:42,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:42,957 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:42,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:43,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:43,157 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:43,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:43,158 INFO L85 PathProgramCache]: Analyzing trace with hash 809765124, now seen corresponding path program 2 times [2024-11-27 20:07:43,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:43,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008508129] [2024-11-27 20:07:43,158 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:43,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:43,190 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:43,190 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:07:43,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [110438054] [2024-11-27 20:07:43,191 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:43,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:43,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:43,195 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:43,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 20:07:43,294 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:43,294 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:43,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:07:43,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:07:44,302 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:45,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:45,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008508129] [2024-11-27 20:07:45,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:45,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110438054] [2024-11-27 20:07:45,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110438054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:45,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:45,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 20:07:45,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166965903] [2024-11-27 20:07:45,128 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:45,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:07:45,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:45,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:07:45,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:07:45,129 INFO L87 Difference]: Start difference. First operand 523 states and 595 transitions. Second operand has 10 states, 9 states have (on average 19.0) internal successors, (171), 10 states have internal predecessors, (171), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:07:46,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:46,374 INFO L93 Difference]: Finished difference Result 524 states and 595 transitions. [2024-11-27 20:07:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:07:46,374 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 19.0) internal successors, (171), 10 states have internal predecessors, (171), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 248 [2024-11-27 20:07:46,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:46,376 INFO L225 Difference]: With dead ends: 524 [2024-11-27 20:07:46,377 INFO L226 Difference]: Without dead ends: 523 [2024-11-27 20:07:46,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:07:46,377 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 109 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 1777 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 1788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:46,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 511 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1777 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:07:46,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-27 20:07:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2024-11-27 20:07:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 425 states have (on average 1.2329411764705882) internal successors, (524), 486 states have internal predecessors, (524), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:07:46,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 594 transitions. [2024-11-27 20:07:46,412 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 594 transitions. Word has length 248 [2024-11-27 20:07:46,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:46,412 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 594 transitions. [2024-11-27 20:07:46,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 19.0) internal successors, (171), 10 states have internal predecessors, (171), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:07:46,413 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 594 transitions. [2024-11-27 20:07:46,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-27 20:07:46,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:46,414 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:46,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-27 20:07:46,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:46,618 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:46,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:46,618 INFO L85 PathProgramCache]: Analyzing trace with hash -667084747, now seen corresponding path program 2 times [2024-11-27 20:07:46,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:46,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757158671] [2024-11-27 20:07:46,619 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:46,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:46,653 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:46,653 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:07:46,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677867523] [2024-11-27 20:07:46,656 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:46,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:46,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:46,659 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:46,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 20:07:46,761 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:46,761 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:46,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:07:46,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:47,767 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:07:47,767 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:48,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:48,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757158671] [2024-11-27 20:07:48,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:48,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677867523] [2024-11-27 20:07:48,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677867523] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:48,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:48,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 20:07:48,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402739370] [2024-11-27 20:07:48,572 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:48,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:07:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:48,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:07:48,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:07:48,573 INFO L87 Difference]: Start difference. First operand 523 states and 594 transitions. Second operand has 10 states, 9 states have (on average 19.11111111111111) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:07:49,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:49,862 INFO L93 Difference]: Finished difference Result 524 states and 594 transitions. [2024-11-27 20:07:49,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:07:49,862 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 19.11111111111111) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 249 [2024-11-27 20:07:49,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:49,864 INFO L225 Difference]: With dead ends: 524 [2024-11-27 20:07:49,864 INFO L226 Difference]: Without dead ends: 523 [2024-11-27 20:07:49,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:07:49,865 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 58 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 2131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:07:49,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 586 Invalid, 2131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2128 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 20:07:49,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-27 20:07:49,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2024-11-27 20:07:49,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 425 states have (on average 1.2305882352941175) internal successors, (523), 486 states have internal predecessors, (523), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:07:49,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 593 transitions. [2024-11-27 20:07:49,901 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 593 transitions. Word has length 249 [2024-11-27 20:07:49,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:49,902 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 593 transitions. [2024-11-27 20:07:49,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 19.11111111111111) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:07:49,902 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 593 transitions. [2024-11-27 20:07:49,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-27 20:07:49,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:49,906 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:49,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-27 20:07:50,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-27 20:07:50,109 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:07:50,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:50,109 INFO L85 PathProgramCache]: Analyzing trace with hash -307833528, now seen corresponding path program 2 times [2024-11-27 20:07:50,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:50,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742850105] [2024-11-27 20:07:50,110 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:50,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:50,150 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:50,150 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:07:50,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1224678027] [2024-11-27 20:07:50,151 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:07:50,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:50,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:50,158 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:50,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 20:07:50,321 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:07:50,321 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:07:50,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 20:07:50,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:53,045 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:07:53,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:07:55,292 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:07:55,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:55,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742850105] [2024-11-27 20:07:55,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:07:55,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224678027] [2024-11-27 20:07:55,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224678027] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:07:55,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:07:55,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2024-11-27 20:07:55,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440604891] [2024-11-27 20:07:55,293 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:07:55,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 20:07:55,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:55,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 20:07:55,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:07:55,294 INFO L87 Difference]: Start difference. First operand 523 states and 593 transitions. Second operand has 19 states, 18 states have (on average 19.22222222222222) internal successors, (346), 19 states have internal predecessors, (346), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-27 20:08:04,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:08:08,762 WARN L539 Checker$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 20:08:11,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:08:15,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:08:19,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:08:22,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:22,937 INFO L93 Difference]: Finished difference Result 547 states and 610 transitions. [2024-11-27 20:08:22,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:08:22,937 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 19.22222222222222) internal successors, (346), 19 states have internal predecessors, (346), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 252 [2024-11-27 20:08:22,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:22,939 INFO L225 Difference]: With dead ends: 547 [2024-11-27 20:08:22,939 INFO L226 Difference]: Without dead ends: 539 [2024-11-27 20:08:22,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=234, Invalid=578, Unknown=0, NotChecked=0, Total=812 [2024-11-27 20:08:22,940 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 966 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 2562 mSolverCounterSat, 77 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 2642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2562 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:22,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 312 Invalid, 2642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2562 Invalid, 3 Unknown, 0 Unchecked, 26.6s Time] [2024-11-27 20:08:22,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-27 20:08:22,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 535. [2024-11-27 20:08:22,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 436 states have (on average 1.213302752293578) internal successors, (529), 497 states have internal predecessors, (529), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:08:22,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 601 transitions. [2024-11-27 20:08:22,968 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 601 transitions. Word has length 252 [2024-11-27 20:08:22,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:22,969 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 601 transitions. [2024-11-27 20:08:22,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 19.22222222222222) internal successors, (346), 19 states have internal predecessors, (346), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-27 20:08:22,969 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 601 transitions. [2024-11-27 20:08:22,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-27 20:08:22,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:22,970 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 20:08:22,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-27 20:08:23,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:23,171 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:08:23,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:23,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2048187355, now seen corresponding path program 1 times [2024-11-27 20:08:23,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:23,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689509869] [2024-11-27 20:08:23,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:23,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:08:23,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2006700133] [2024-11-27 20:08:23,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:23,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:23,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:23,206 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:23,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 20:08:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:23,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:08:23,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:23,595 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 219 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:08:23,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 219 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:08:24,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:24,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689509869] [2024-11-27 20:08:24,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:08:24,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006700133] [2024-11-27 20:08:24,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006700133] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:08:24,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:08:24,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 20:08:24,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133305598] [2024-11-27 20:08:24,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:24,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:08:24,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:24,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:08:24,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:08:24,110 INFO L87 Difference]: Start difference. First operand 535 states and 601 transitions. Second operand has 10 states, 9 states have (on average 40.22222222222222) internal successors, (362), 10 states have internal predecessors, (362), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2024-11-27 20:08:24,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:24,561 INFO L93 Difference]: Finished difference Result 675 states and 720 transitions. [2024-11-27 20:08:24,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:08:24,562 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 40.22222222222222) internal successors, (362), 10 states have internal predecessors, (362), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 261 [2024-11-27 20:08:24,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:24,565 INFO L225 Difference]: With dead ends: 675 [2024-11-27 20:08:24,565 INFO L226 Difference]: Without dead ends: 673 [2024-11-27 20:08:24,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:08:24,566 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 843 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:24,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 1571 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:08:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2024-11-27 20:08:24,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 534. [2024-11-27 20:08:24,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 436 states have (on average 1.2041284403669725) internal successors, (525), 496 states have internal predecessors, (525), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:08:24,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 597 transitions. [2024-11-27 20:08:24,631 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 597 transitions. Word has length 261 [2024-11-27 20:08:24,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:24,635 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 597 transitions. [2024-11-27 20:08:24,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 40.22222222222222) internal successors, (362), 10 states have internal predecessors, (362), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2024-11-27 20:08:24,636 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 597 transitions. [2024-11-27 20:08:24,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-27 20:08:24,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:24,637 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:24,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-27 20:08:24,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-27 20:08:24,841 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:08:24,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:24,842 INFO L85 PathProgramCache]: Analyzing trace with hash 880452247, now seen corresponding path program 1 times [2024-11-27 20:08:24,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:24,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045761063] [2024-11-27 20:08:24,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:24,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:25,194 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 20:08:25,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:25,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045761063] [2024-11-27 20:08:25,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045761063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:25,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254194704] [2024-11-27 20:08:25,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:25,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:25,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:25,197 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:25,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 20:08:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:25,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:08:25,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 20:08:26,216 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:26,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254194704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:26,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:08:26,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 20:08:26,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464127825] [2024-11-27 20:08:26,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:26,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:08:26,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:26,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:08:26,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:08:26,311 INFO L87 Difference]: Start difference. First operand 534 states and 597 transitions. Second operand has 16 states, 15 states have (on average 24.933333333333334) internal successors, (374), 16 states have internal predecessors, (374), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 20:08:28,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:28,663 INFO L93 Difference]: Finished difference Result 534 states and 597 transitions. [2024-11-27 20:08:28,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:08:28,664 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 24.933333333333334) internal successors, (374), 16 states have internal predecessors, (374), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 272 [2024-11-27 20:08:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:28,666 INFO L225 Difference]: With dead ends: 534 [2024-11-27 20:08:28,666 INFO L226 Difference]: Without dead ends: 530 [2024-11-27 20:08:28,667 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:08:28,667 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 409 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 2189 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 2224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:28,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 380 Invalid, 2224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2189 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 20:08:28,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-27 20:08:28,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-27 20:08:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 436 states have (on average 1.1926605504587156) internal successors, (520), 492 states have internal predecessors, (520), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:08:28,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 592 transitions. [2024-11-27 20:08:28,714 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 592 transitions. Word has length 272 [2024-11-27 20:08:28,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:28,714 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 592 transitions. [2024-11-27 20:08:28,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 24.933333333333334) internal successors, (374), 16 states have internal predecessors, (374), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 20:08:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 592 transitions. [2024-11-27 20:08:28,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-27 20:08:28,716 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:28,717 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:28,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-27 20:08:28,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:28,921 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:08:28,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:28,921 INFO L85 PathProgramCache]: Analyzing trace with hash 187836203, now seen corresponding path program 1 times [2024-11-27 20:08:28,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:28,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893300967] [2024-11-27 20:08:28,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:28,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:29,114 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 20:08:29,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:29,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893300967] [2024-11-27 20:08:29,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893300967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:29,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:29,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:08:29,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219949946] [2024-11-27 20:08:29,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:29,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:08:29,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:29,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:08:29,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:08:29,116 INFO L87 Difference]: Start difference. First operand 530 states and 592 transitions. Second operand has 6 states, 5 states have (on average 38.6) internal successors, (193), 6 states have internal predecessors, (193), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-27 20:08:29,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:29,755 INFO L93 Difference]: Finished difference Result 530 states and 592 transitions. [2024-11-27 20:08:29,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:08:29,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 38.6) internal successors, (193), 6 states have internal predecessors, (193), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 275 [2024-11-27 20:08:29,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:29,758 INFO L225 Difference]: With dead ends: 530 [2024-11-27 20:08:29,758 INFO L226 Difference]: Without dead ends: 528 [2024-11-27 20:08:29,758 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:08:29,759 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 325 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:29,759 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 308 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:08:29,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-27 20:08:29,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-27 20:08:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 436 states have (on average 1.18348623853211) internal successors, (516), 490 states have internal predecessors, (516), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:08:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 588 transitions. [2024-11-27 20:08:29,806 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 588 transitions. Word has length 275 [2024-11-27 20:08:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:29,807 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 588 transitions. [2024-11-27 20:08:29,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 38.6) internal successors, (193), 6 states have internal predecessors, (193), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-27 20:08:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 588 transitions. [2024-11-27 20:08:29,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-27 20:08:29,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:29,809 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:29,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-27 20:08:29,809 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:08:29,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:29,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1527955227, now seen corresponding path program 1 times [2024-11-27 20:08:29,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:29,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868438541] [2024-11-27 20:08:29,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:29,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:30,160 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 20:08:30,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:30,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868438541] [2024-11-27 20:08:30,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868438541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:30,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173888722] [2024-11-27 20:08:30,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:30,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:30,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:30,163 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:30,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 20:08:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:30,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:08:30,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:08:31,066 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 20:08:31,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:08:32,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173888722] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:08:32,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:08:32,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 20:08:32,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994402155] [2024-11-27 20:08:32,587 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:08:32,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:08:32,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:32,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:08:32,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:08:32,589 INFO L87 Difference]: Start difference. First operand 528 states and 588 transitions. Second operand has 16 states, 15 states have (on average 25.466666666666665) internal successors, (382), 16 states have internal predecessors, (382), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 20:08:35,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:35,330 INFO L93 Difference]: Finished difference Result 528 states and 588 transitions. [2024-11-27 20:08:35,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:08:35,330 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 25.466666666666665) internal successors, (382), 16 states have internal predecessors, (382), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 276 [2024-11-27 20:08:35,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:35,332 INFO L225 Difference]: With dead ends: 528 [2024-11-27 20:08:35,332 INFO L226 Difference]: Without dead ends: 492 [2024-11-27 20:08:35,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:08:35,334 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 900 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:35,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 389 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 20:08:35,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-27 20:08:35,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2024-11-27 20:08:35,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 404 states have (on average 1.188118811881188) internal successors, (480), 456 states have internal predecessors, (480), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-27 20:08:35,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 548 transitions. [2024-11-27 20:08:35,362 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 548 transitions. Word has length 276 [2024-11-27 20:08:35,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:35,362 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 548 transitions. [2024-11-27 20:08:35,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 25.466666666666665) internal successors, (382), 16 states have internal predecessors, (382), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2024-11-27 20:08:35,362 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 548 transitions. [2024-11-27 20:08:35,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-27 20:08:35,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:35,363 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 20:08:35,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-27 20:08:35,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:35,564 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:08:35,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:35,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1331592737, now seen corresponding path program 3 times [2024-11-27 20:08:35,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:35,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165701492] [2024-11-27 20:08:35,564 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:08:35,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:35,614 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 20:08:35,614 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:08:35,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79152854] [2024-11-27 20:08:35,616 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:08:35,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:08:35,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:35,618 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:08:35,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-27 20:08:35,713 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 20:08:35,713 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:08:35,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 20:08:35,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:31,760 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 128 proven. 94 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2024-11-27 20:09:31,760 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:32,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165701492] [2024-11-27 20:09:32,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:09:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79152854] [2024-11-27 20:09:32,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79152854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:32,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:09:32,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 20:09:32,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187538396] [2024-11-27 20:09:32,985 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:32,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:09:32,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:32,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:09:32,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:09:32,986 INFO L87 Difference]: Start difference. First operand 492 states and 548 transitions. Second operand has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 states have internal predecessors, (94), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-27 20:09:54,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:55,000 INFO L93 Difference]: Finished difference Result 494 states and 550 transitions. [2024-11-27 20:09:55,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:09:55,000 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 states have internal predecessors, (94), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 279 [2024-11-27 20:09:55,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:55,002 INFO L225 Difference]: With dead ends: 494 [2024-11-27 20:09:55,002 INFO L226 Difference]: Without dead ends: 481 [2024-11-27 20:09:55,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:09:55,003 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 839 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:55,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 159 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-27 20:09:55,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-27 20:09:55,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2024-11-27 20:09:55,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 404 states have (on average 1.136138613861386) internal successors, (459), 443 states have internal predecessors, (459), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-27 20:09:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 527 transitions. [2024-11-27 20:09:55,058 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 527 transitions. Word has length 279 [2024-11-27 20:09:55,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:55,058 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 527 transitions. [2024-11-27 20:09:55,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.833333333333333) internal successors, (94), 12 states have internal predecessors, (94), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-27 20:09:55,058 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 527 transitions. [2024-11-27 20:09:55,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2024-11-27 20:09:55,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:55,060 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 20:09:55,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-27 20:09:55,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:55,264 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:09:55,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:55,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1365116635, now seen corresponding path program 1 times [2024-11-27 20:09:55,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:55,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513222973] [2024-11-27 20:09:55,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:55,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:55,515 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 267 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:09:55,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:55,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513222973] [2024-11-27 20:09:55,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513222973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:55,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732845023] [2024-11-27 20:09:55,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:55,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:55,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:55,519 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:55,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 20:09:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:55,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:09:55,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:56,373 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 267 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:09:56,373 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:09:56,843 INFO L134 CoverageAnalysis]: Checked inductivity of 879 backedges. 0 proven. 267 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:09:56,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732845023] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:09:56,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:09:56,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-27 20:09:56,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195684093] [2024-11-27 20:09:56,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:09:56,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 20:09:56,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:56,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 20:09:56,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=224, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:09:56,845 INFO L87 Difference]: Start difference. First operand 479 states and 527 transitions. Second operand has 19 states, 18 states have (on average 30.77777777777778) internal successors, (554), 19 states have internal predecessors, (554), 11 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 11 states have call predecessors, (51), 11 states have call successors, (51) [2024-11-27 20:09:58,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:58,555 INFO L93 Difference]: Finished difference Result 870 states and 1028 transitions. [2024-11-27 20:09:58,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:09:58,556 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 30.77777777777778) internal successors, (554), 19 states have internal predecessors, (554), 11 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 11 states have call predecessors, (51), 11 states have call successors, (51) Word has length 285 [2024-11-27 20:09:58,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:58,559 INFO L225 Difference]: With dead ends: 870 [2024-11-27 20:09:58,559 INFO L226 Difference]: Without dead ends: 863 [2024-11-27 20:09:58,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 558 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=274, Invalid=482, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:09:58,560 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 1605 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 1532 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:58,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1612 Valid, 723 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1532 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 20:09:58,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-11-27 20:09:58,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 592. [2024-11-27 20:09:58,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 513 states have (on average 1.1208576998050683) internal successors, (575), 546 states have internal predecessors, (575), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 20:09:58,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 663 transitions. [2024-11-27 20:09:58,629 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 663 transitions. Word has length 285 [2024-11-27 20:09:58,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:58,630 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 663 transitions. [2024-11-27 20:09:58,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 30.77777777777778) internal successors, (554), 19 states have internal predecessors, (554), 11 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 11 states have call predecessors, (51), 11 states have call successors, (51) [2024-11-27 20:09:58,630 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 663 transitions. [2024-11-27 20:09:58,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-27 20:09:58,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:58,632 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 20:09:58,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-27 20:09:58,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-27 20:09:58,833 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:09:58,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:58,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2042647783, now seen corresponding path program 1 times [2024-11-27 20:09:58,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:58,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588680603] [2024-11-27 20:09:58,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:58,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:59,164 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:09:59,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:59,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588680603] [2024-11-27 20:09:59,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588680603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:09:59,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429039314] [2024-11-27 20:09:59,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:59,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:09:59,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:09:59,167 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:09:59,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-27 20:09:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:59,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:09:59,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:09:59,646 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:09:59,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:09:59,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429039314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:59,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:09:59,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-11-27 20:09:59,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135646022] [2024-11-27 20:09:59,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:59,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:09:59,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:59,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:09:59,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:09:59,648 INFO L87 Difference]: Start difference. First operand 592 states and 663 transitions. Second operand has 7 states, 6 states have (on average 33.833333333333336) internal successors, (203), 7 states have internal predecessors, (203), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 20:10:00,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:00,371 INFO L93 Difference]: Finished difference Result 592 states and 663 transitions. [2024-11-27 20:10:00,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:10:00,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 33.833333333333336) internal successors, (203), 7 states have internal predecessors, (203), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 290 [2024-11-27 20:10:00,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:00,373 INFO L225 Difference]: With dead ends: 592 [2024-11-27 20:10:00,373 INFO L226 Difference]: Without dead ends: 588 [2024-11-27 20:10:00,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:10:00,373 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 204 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:00,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 425 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:10:00,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-27 20:10:00,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2024-11-27 20:10:00,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 513 states have (on average 1.101364522417154) internal successors, (565), 542 states have internal predecessors, (565), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 20:10:00,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 653 transitions. [2024-11-27 20:10:00,412 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 653 transitions. Word has length 290 [2024-11-27 20:10:00,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:00,412 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 653 transitions. [2024-11-27 20:10:00,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 33.833333333333336) internal successors, (203), 7 states have internal predecessors, (203), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 20:10:00,413 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 653 transitions. [2024-11-27 20:10:00,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-27 20:10:00,414 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:00,414 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 20:10:00,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-27 20:10:00,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-27 20:10:00,614 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:10:00,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:00,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1102428053, now seen corresponding path program 1 times [2024-11-27 20:10:00,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:00,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141301781] [2024-11-27 20:10:00,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:00,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:10:01,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:01,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141301781] [2024-11-27 20:10:01,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141301781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:01,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415034462] [2024-11-27 20:10:01,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:01,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:01,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:01,122 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:01,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 20:10:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:01,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:10:01,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 180 proven. 105 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:10:02,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:08,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415034462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:08,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:10:08,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-11-27 20:10:08,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792721643] [2024-11-27 20:10:08,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:08,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 20:10:08,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:08,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 20:10:08,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=717, Unknown=1, NotChecked=0, Total=870 [2024-11-27 20:10:08,200 INFO L87 Difference]: Start difference. First operand 588 states and 653 transitions. Second operand has 25 states, 24 states have (on average 16.75) internal successors, (402), 25 states have internal predecessors, (402), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:10:11,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:11,291 INFO L93 Difference]: Finished difference Result 588 states and 653 transitions. [2024-11-27 20:10:11,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:10:11,292 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 16.75) internal successors, (402), 25 states have internal predecessors, (402), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 291 [2024-11-27 20:10:11,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:11,294 INFO L225 Difference]: With dead ends: 588 [2024-11-27 20:10:11,294 INFO L226 Difference]: Without dead ends: 551 [2024-11-27 20:10:11,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=313, Invalid=1092, Unknown=1, NotChecked=0, Total=1406 [2024-11-27 20:10:11,295 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 839 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1308 SdHoareTripleChecker+Invalid, 2275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:11,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1308 Invalid, 2275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 20:10:11,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-27 20:10:11,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 432. [2024-11-27 20:10:11,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 376 states have (on average 1.077127659574468) internal successors, (405), 398 states have internal predecessors, (405), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 20:10:11,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 469 transitions. [2024-11-27 20:10:11,345 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 469 transitions. Word has length 291 [2024-11-27 20:10:11,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:11,345 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 469 transitions. [2024-11-27 20:10:11,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 16.75) internal successors, (402), 25 states have internal predecessors, (402), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:10:11,346 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 469 transitions. [2024-11-27 20:10:11,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-11-27 20:10:11,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:11,347 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 20:10:11,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:11,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-27 20:10:11,548 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:10:11,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:11,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1217292052, now seen corresponding path program 1 times [2024-11-27 20:10:11,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:11,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523748867] [2024-11-27 20:10:11,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:11,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:11,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2024-11-27 20:10:11,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:11,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523748867] [2024-11-27 20:10:11,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523748867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:11,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:11,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:11,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049533205] [2024-11-27 20:10:11,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:11,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:10:11,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:11,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:10:11,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:10:11,676 INFO L87 Difference]: Start difference. First operand 432 states and 469 transitions. Second operand has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 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 20:10:11,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:11,882 INFO L93 Difference]: Finished difference Result 432 states and 469 transitions. [2024-11-27 20:10:11,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:10:11,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 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 320 [2024-11-27 20:10:11,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:11,884 INFO L225 Difference]: With dead ends: 432 [2024-11-27 20:10:11,884 INFO L226 Difference]: Without dead ends: 431 [2024-11-27 20:10:11,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 20:10:11,885 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 186 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:11,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 148 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:10:11,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-27 20:10:11,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2024-11-27 20:10:11,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 376 states have (on average 1.071808510638298) internal successors, (403), 397 states have internal predecessors, (403), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 20:10:11,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 467 transitions. [2024-11-27 20:10:11,916 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 467 transitions. Word has length 320 [2024-11-27 20:10:11,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:11,917 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 467 transitions. [2024-11-27 20:10:11,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.666666666666668) internal successors, (92), 4 states have internal predecessors, (92), 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 20:10:11,917 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 467 transitions. [2024-11-27 20:10:11,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-27 20:10:11,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:11,919 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:11,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-27 20:10:11,919 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:10:11,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:11,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1061473087, now seen corresponding path program 3 times [2024-11-27 20:10:11,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:11,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957076190] [2024-11-27 20:10:11,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:10:11,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:11,977 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 20:10:11,978 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:10:11,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [478533565] [2024-11-27 20:10:11,979 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:10:11,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:11,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:11,982 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:11,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-27 20:10:12,080 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:10:12,080 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:10:12,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 20:10:12,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:14,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:10:14,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:15,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:15,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957076190] [2024-11-27 20:10:15,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:15,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478533565] [2024-11-27 20:10:15,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478533565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:15,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:15,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 20:10:15,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547280737] [2024-11-27 20:10:15,103 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:15,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:10:15,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:15,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:10:15,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:10:15,105 INFO L87 Difference]: Start difference. First operand 431 states and 467 transitions. Second operand has 14 states, 13 states have (on average 17.384615384615383) internal successors, (226), 14 states have internal predecessors, (226), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-27 20:10:17,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:17,279 INFO L93 Difference]: Finished difference Result 431 states and 467 transitions. [2024-11-27 20:10:17,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:10:17,279 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 17.384615384615383) internal successors, (226), 14 states have internal predecessors, (226), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 328 [2024-11-27 20:10:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:17,281 INFO L225 Difference]: With dead ends: 431 [2024-11-27 20:10:17,281 INFO L226 Difference]: Without dead ends: 430 [2024-11-27 20:10:17,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:10:17,281 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 280 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 2616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:17,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 302 Invalid, 2616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2599 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 20:10:17,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-27 20:10:17,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2024-11-27 20:10:17,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 376 states have (on average 1.0664893617021276) internal successors, (401), 396 states have internal predecessors, (401), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-27 20:10:17,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 465 transitions. [2024-11-27 20:10:17,333 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 465 transitions. Word has length 328 [2024-11-27 20:10:17,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:17,333 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 465 transitions. [2024-11-27 20:10:17,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 17.384615384615383) internal successors, (226), 14 states have internal predecessors, (226), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-27 20:10:17,333 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 465 transitions. [2024-11-27 20:10:17,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-27 20:10:17,335 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:17,336 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:17,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:17,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-27 20:10:17,540 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:10:17,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:17,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1454072856, now seen corresponding path program 3 times [2024-11-27 20:10:17,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:17,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519857590] [2024-11-27 20:10:17,541 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:10:17,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:17,608 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 20:10:17,611 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:10:17,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144066343] [2024-11-27 20:10:17,613 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:10:17,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:17,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:17,620 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:17,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 20:10:17,722 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:10:17,722 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:10:17,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 20:10:17,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:18,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 90 proven. 360 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2024-11-27 20:10:18,840 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:19,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:19,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519857590] [2024-11-27 20:10:19,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:19,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144066343] [2024-11-27 20:10:19,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144066343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:19,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:19,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 20:10:19,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630637283] [2024-11-27 20:10:19,155 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:19,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:10:19,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:19,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:10:19,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:10:19,156 INFO L87 Difference]: Start difference. First operand 430 states and 465 transitions. Second operand has 16 states, 15 states have (on average 15.333333333333334) internal successors, (230), 16 states have internal predecessors, (230), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 20:10:21,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:21,500 INFO L93 Difference]: Finished difference Result 496 states and 531 transitions. [2024-11-27 20:10:21,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:10:21,500 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 15.333333333333334) internal successors, (230), 16 states have internal predecessors, (230), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 329 [2024-11-27 20:10:21,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:21,502 INFO L225 Difference]: With dead ends: 496 [2024-11-27 20:10:21,502 INFO L226 Difference]: Without dead ends: 448 [2024-11-27 20:10:21,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:10:21,503 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 178 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 3617 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 3642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:21,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 562 Invalid, 3642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3617 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 20:10:21,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-27 20:10:21,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 445. [2024-11-27 20:10:21,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 390 states have (on average 1.0615384615384615) internal successors, (414), 410 states have internal predecessors, (414), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-27 20:10:21,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 480 transitions. [2024-11-27 20:10:21,554 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 480 transitions. Word has length 329 [2024-11-27 20:10:21,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:21,554 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 480 transitions. [2024-11-27 20:10:21,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 15.333333333333334) internal successors, (230), 16 states have internal predecessors, (230), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 20:10:21,554 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 480 transitions. [2024-11-27 20:10:21,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-27 20:10:21,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:21,556 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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 20:10:21,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-27 20:10:21,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-27 20:10:21,757 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:10:21,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:21,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2027438007, now seen corresponding path program 1 times [2024-11-27 20:10:21,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:21,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158578446] [2024-11-27 20:10:21,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:21,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:10:22,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158578446] [2024-11-27 20:10:22,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158578446] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393118748] [2024-11-27 20:10:22,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:22,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:22,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:22,211 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:22,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-27 20:10:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:22,337 INFO L256 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:10:22,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:23,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 58 proven. 278 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:10:23,425 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:27,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393118748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:27,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:10:27,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-27 20:10:27,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839479514] [2024-11-27 20:10:27,635 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:27,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:10:27,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:27,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:10:27,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=276, Unknown=1, NotChecked=0, Total=342 [2024-11-27 20:10:27,636 INFO L87 Difference]: Start difference. First operand 445 states and 480 transitions. Second operand has 17 states, 16 states have (on average 25.0625) internal successors, (401), 17 states have internal predecessors, (401), 7 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-27 20:10:31,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:31,833 INFO L93 Difference]: Finished difference Result 445 states and 480 transitions. [2024-11-27 20:10:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:10:31,834 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 25.0625) internal successors, (401), 17 states have internal predecessors, (401), 7 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) Word has length 336 [2024-11-27 20:10:31,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:31,835 INFO L225 Difference]: With dead ends: 445 [2024-11-27 20:10:31,836 INFO L226 Difference]: Without dead ends: 444 [2024-11-27 20:10:31,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=151, Invalid=498, Unknown=1, NotChecked=0, Total=650 [2024-11-27 20:10:31,836 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 268 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:31,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 1251 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-27 20:10:31,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-11-27 20:10:31,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2024-11-27 20:10:31,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 390 states have (on average 1.0564102564102564) internal successors, (412), 409 states have internal predecessors, (412), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-27 20:10:31,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 478 transitions. [2024-11-27 20:10:31,885 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 478 transitions. Word has length 336 [2024-11-27 20:10:31,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:31,885 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 478 transitions. [2024-11-27 20:10:31,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 25.0625) internal successors, (401), 17 states have internal predecessors, (401), 7 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-27 20:10:31,886 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 478 transitions. [2024-11-27 20:10:31,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-27 20:10:31,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:31,888 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:31,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-27 20:10:32,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-27 20:10:32,089 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:10:32,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:32,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1561113290, now seen corresponding path program 2 times [2024-11-27 20:10:32,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:32,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500193853] [2024-11-27 20:10:32,090 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:10:32,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:32,159 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:10:32,159 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:10:32,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [629215990] [2024-11-27 20:10:32,164 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:10:32,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:32,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:32,167 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:32,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-27 20:10:32,391 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:10:32,391 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:10:32,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:10:32,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:34,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-27 20:10:34,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:35,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-27 20:10:35,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:35,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500193853] [2024-11-27 20:10:35,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:35,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629215990] [2024-11-27 20:10:35,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629215990] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:10:35,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:10:35,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-27 20:10:35,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182880299] [2024-11-27 20:10:35,205 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:35,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 20:10:35,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:35,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 20:10:35,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:10:35,207 INFO L87 Difference]: Start difference. First operand 444 states and 478 transitions. Second operand has 26 states, 25 states have (on average 19.28) internal successors, (482), 26 states have internal predecessors, (482), 10 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 10 states have call predecessors, (44), 10 states have call successors, (44) [2024-11-27 20:10:39,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:39,886 INFO L93 Difference]: Finished difference Result 737 states and 832 transitions. [2024-11-27 20:10:39,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-27 20:10:39,887 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 19.28) internal successors, (482), 26 states have internal predecessors, (482), 10 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 10 states have call predecessors, (44), 10 states have call successors, (44) Word has length 351 [2024-11-27 20:10:39,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:39,889 INFO L225 Difference]: With dead ends: 737 [2024-11-27 20:10:39,889 INFO L226 Difference]: Without dead ends: 709 [2024-11-27 20:10:39,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 725 GetRequests, 676 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=587, Invalid=1963, Unknown=0, NotChecked=0, Total=2550 [2024-11-27 20:10:39,890 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 921 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 4274 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 4373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 4274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:39,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 650 Invalid, 4373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 4274 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-27 20:10:39,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-11-27 20:10:39,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 586. [2024-11-27 20:10:39,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 520 states have (on average 1.0634615384615385) internal successors, (553), 539 states have internal predecessors, (553), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 20:10:39,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 643 transitions. [2024-11-27 20:10:39,957 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 643 transitions. Word has length 351 [2024-11-27 20:10:39,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:39,957 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 643 transitions. [2024-11-27 20:10:39,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 19.28) internal successors, (482), 26 states have internal predecessors, (482), 10 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 10 states have call predecessors, (44), 10 states have call successors, (44) [2024-11-27 20:10:39,958 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 643 transitions. [2024-11-27 20:10:39,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-27 20:10:39,960 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:39,960 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-27 20:10:39,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-27 20:10:40,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-27 20:10:40,161 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:10:40,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:40,162 INFO L85 PathProgramCache]: Analyzing trace with hash 521572740, now seen corresponding path program 3 times [2024-11-27 20:10:40,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:40,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807709959] [2024-11-27 20:10:40,162 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:10:40,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:40,227 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 20:10:40,228 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:10:40,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 60 proven. 466 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:10:40,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:40,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807709959] [2024-11-27 20:10:40,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807709959] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:40,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670435771] [2024-11-27 20:10:40,890 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:10:40,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:40,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:40,892 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:40,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-27 20:10:40,967 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 20:10:40,967 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:10:40,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:10:40,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 66 proven. 124 refuted. 0 times theorem prover too weak. 1282 trivial. 0 not checked. [2024-11-27 20:10:41,992 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:42,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670435771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:42,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:10:42,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 8] total 23 [2024-11-27 20:10:42,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213565049] [2024-11-27 20:10:42,291 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:42,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-27 20:10:42,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:42,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-27 20:10:42,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2024-11-27 20:10:42,293 INFO L87 Difference]: Start difference. First operand 586 states and 643 transitions. Second operand has 24 states, 23 states have (on average 14.826086956521738) internal successors, (341), 24 states have internal predecessors, (341), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) [2024-11-27 20:10:46,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:46,326 INFO L93 Difference]: Finished difference Result 663 states and 723 transitions. [2024-11-27 20:10:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-27 20:10:46,326 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 14.826086956521738) internal successors, (341), 24 states have internal predecessors, (341), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) Word has length 361 [2024-11-27 20:10:46,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:46,329 INFO L225 Difference]: With dead ends: 663 [2024-11-27 20:10:46,329 INFO L226 Difference]: Without dead ends: 661 [2024-11-27 20:10:46,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=698, Invalid=2724, Unknown=0, NotChecked=0, Total=3422 [2024-11-27 20:10:46,330 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 1568 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 2513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:46,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1568 Valid, 320 Invalid, 2513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 20:10:46,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2024-11-27 20:10:46,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 584. [2024-11-27 20:10:46,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 520 states have (on average 1.051923076923077) internal successors, (547), 537 states have internal predecessors, (547), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 20:10:46,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 637 transitions. [2024-11-27 20:10:46,390 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 637 transitions. Word has length 361 [2024-11-27 20:10:46,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:46,390 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 637 transitions. [2024-11-27 20:10:46,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 14.826086956521738) internal successors, (341), 24 states have internal predecessors, (341), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) [2024-11-27 20:10:46,391 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 637 transitions. [2024-11-27 20:10:46,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-27 20:10:46,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:46,393 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:46,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-27 20:10:46,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:46,594 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:10:46,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:46,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1276217699, now seen corresponding path program 1 times [2024-11-27 20:10:46,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:46,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469284099] [2024-11-27 20:10:46,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:46,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:10:46,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228332094] [2024-11-27 20:10:46,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:46,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:46,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:46,655 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:46,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-27 20:10:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:46,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 20:10:46,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 20:10:49,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:50,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:50,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469284099] [2024-11-27 20:10:50,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:50,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228332094] [2024-11-27 20:10:50,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228332094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:50,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:50,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-27 20:10:50,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43873604] [2024-11-27 20:10:50,060 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:50,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:10:50,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:50,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:10:50,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:10:50,062 INFO L87 Difference]: Start difference. First operand 584 states and 637 transitions. Second operand has 17 states, 16 states have (on average 17.75) internal successors, (284), 17 states have internal predecessors, (284), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 20:10:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:52,727 INFO L93 Difference]: Finished difference Result 651 states and 714 transitions. [2024-11-27 20:10:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:10:52,728 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 17.75) internal successors, (284), 17 states have internal predecessors, (284), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 411 [2024-11-27 20:10:52,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:52,730 INFO L225 Difference]: With dead ends: 651 [2024-11-27 20:10:52,730 INFO L226 Difference]: Without dead ends: 644 [2024-11-27 20:10:52,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:10:52,732 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 51 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 4872 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 4878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:52,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 898 Invalid, 4878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4872 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 20:10:52,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-27 20:10:52,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 642. [2024-11-27 20:10:52,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 575 states have (on average 1.0608695652173914) internal successors, (610), 592 states have internal predecessors, (610), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 20:10:52,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 706 transitions. [2024-11-27 20:10:52,805 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 706 transitions. Word has length 411 [2024-11-27 20:10:52,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:52,806 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 706 transitions. [2024-11-27 20:10:52,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 17.75) internal successors, (284), 17 states have internal predecessors, (284), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 20:10:52,806 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 706 transitions. [2024-11-27 20:10:52,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-11-27 20:10:52,809 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:52,809 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:52,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-27 20:10:53,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:53,010 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:10:53,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:53,011 INFO L85 PathProgramCache]: Analyzing trace with hash -908042814, now seen corresponding path program 3 times [2024-11-27 20:10:53,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:53,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889064453] [2024-11-27 20:10:53,011 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:10:53,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:53,102 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-27 20:10:53,102 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:10:53,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985770316] [2024-11-27 20:10:53,111 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:10:53,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:53,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:53,114 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:53,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-27 20:10:53,325 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 20:10:53,325 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:10:53,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:10:53,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 1793 trivial. 0 not checked. [2024-11-27 20:10:54,452 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:10:54,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:54,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889064453] [2024-11-27 20:10:54,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:54,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985770316] [2024-11-27 20:10:54,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985770316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:54,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:54,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:10:54,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782938132] [2024-11-27 20:10:54,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:54,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:10:54,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:54,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:10:54,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:10:54,454 INFO L87 Difference]: Start difference. First operand 642 states and 706 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 2 states have call successors, (6), 1 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 20:10:55,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:55,756 INFO L93 Difference]: Finished difference Result 642 states and 706 transitions. [2024-11-27 20:10:55,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:10:55,757 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 2 states have call successors, (6), 1 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 412 [2024-11-27 20:10:55,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:55,759 INFO L225 Difference]: With dead ends: 642 [2024-11-27 20:10:55,759 INFO L226 Difference]: Without dead ends: 641 [2024-11-27 20:10:55,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:10:55,760 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 169 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:55,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 396 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:10:55,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-27 20:10:55,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2024-11-27 20:10:55,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 575 states have (on average 1.0556521739130436) internal successors, (607), 591 states have internal predecessors, (607), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 20:10:55,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 703 transitions. [2024-11-27 20:10:55,830 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 703 transitions. Word has length 412 [2024-11-27 20:10:55,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:55,830 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 703 transitions. [2024-11-27 20:10:55,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 2 states have call successors, (6), 1 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 20:10:55,831 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 703 transitions. [2024-11-27 20:10:55,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-11-27 20:10:55,832 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:55,832 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:55,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-27 20:10:56,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-27 20:10:56,032 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:10:56,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:56,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1915444031, now seen corresponding path program 1 times [2024-11-27 20:10:56,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:56,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47067080] [2024-11-27 20:10:56,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:56,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:10:56,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621113553] [2024-11-27 20:10:56,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:56,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:10:56,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:10:56,087 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:10:56,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-27 20:10:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:56,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-27 20:10:56,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:10:58,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 20:10:58,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:10:58,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:58,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47067080] [2024-11-27 20:10:58,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:10:58,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621113553] [2024-11-27 20:10:58,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621113553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:10:58,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:10:58,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-27 20:10:58,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885544444] [2024-11-27 20:10:58,854 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:10:58,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 20:10:58,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:58,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 20:10:58,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:10:58,856 INFO L87 Difference]: Start difference. First operand 641 states and 703 transitions. Second operand has 19 states, 18 states have (on average 15.88888888888889) internal successors, (286), 19 states have internal predecessors, (286), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:11:01,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:11:01,611 INFO L93 Difference]: Finished difference Result 645 states and 704 transitions. [2024-11-27 20:11:01,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:11:01,612 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 15.88888888888889) internal successors, (286), 19 states have internal predecessors, (286), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 413 [2024-11-27 20:11:01,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:11:01,614 INFO L225 Difference]: With dead ends: 645 [2024-11-27 20:11:01,614 INFO L226 Difference]: Without dead ends: 643 [2024-11-27 20:11:01,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:11:01,615 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 104 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 5451 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 5457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:11:01,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 631 Invalid, 5457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5451 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 20:11:01,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-27 20:11:01,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 641. [2024-11-27 20:11:01,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 575 states have (on average 1.0521739130434782) internal successors, (605), 591 states have internal predecessors, (605), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 20:11:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 701 transitions. [2024-11-27 20:11:01,673 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 701 transitions. Word has length 413 [2024-11-27 20:11:01,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:11:01,674 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 701 transitions. [2024-11-27 20:11:01,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 15.88888888888889) internal successors, (286), 19 states have internal predecessors, (286), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:11:01,674 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 701 transitions. [2024-11-27 20:11:01,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2024-11-27 20:11:01,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:11:01,677 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2024-11-27 20:11:01,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-27 20:11:01,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-27 20:11:01,881 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:11:01,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:01,881 INFO L85 PathProgramCache]: Analyzing trace with hash -591391267, now seen corresponding path program 2 times [2024-11-27 20:11:01,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:01,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684369613] [2024-11-27 20:11:01,882 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:11:01,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:01,936 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:11:01,936 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:11:01,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786088352] [2024-11-27 20:11:01,939 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:11:01,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:01,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:01,942 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:01,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-27 20:11:02,194 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:11:02,194 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:11:02,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 20:11:02,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:04,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2262 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-27 20:11:04,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:11:10,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:10,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684369613] [2024-11-27 20:11:10,069 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:11:10,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786088352] [2024-11-27 20:11:10,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786088352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:11:10,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:11:10,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-27 20:11:10,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439630999] [2024-11-27 20:11:10,070 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:11:10,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:11:10,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:10,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:11:10,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=351, Unknown=1, NotChecked=0, Total=462 [2024-11-27 20:11:10,071 INFO L87 Difference]: Start difference. First operand 641 states and 701 transitions. Second operand has 18 states, 17 states have (on average 18.176470588235293) internal successors, (309), 18 states have internal predecessors, (309), 6 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-27 20:11:12,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:11:12,560 INFO L93 Difference]: Finished difference Result 703 states and 778 transitions. [2024-11-27 20:11:12,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:11:12,561 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 18.176470588235293) internal successors, (309), 18 states have internal predecessors, (309), 6 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 446 [2024-11-27 20:11:12,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:11:12,563 INFO L225 Difference]: With dead ends: 703 [2024-11-27 20:11:12,563 INFO L226 Difference]: Without dead ends: 701 [2024-11-27 20:11:12,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=110, Invalid=351, Unknown=1, NotChecked=0, Total=462 [2024-11-27 20:11:12,564 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 192 mSDsluCounter, 2219 mSDsCounter, 0 mSdLazyCounter, 4521 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 4526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 4521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:11:12,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 2445 Invalid, 4526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 4521 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 20:11:12,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-11-27 20:11:12,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 680. [2024-11-27 20:11:12,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 611 states have (on average 1.0507364975450082) internal successors, (642), 627 states have internal predecessors, (642), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-27 20:11:12,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 744 transitions. [2024-11-27 20:11:12,660 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 744 transitions. Word has length 446 [2024-11-27 20:11:12,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:11:12,661 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 744 transitions. [2024-11-27 20:11:12,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 18.176470588235293) internal successors, (309), 18 states have internal predecessors, (309), 6 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-27 20:11:12,661 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 744 transitions. [2024-11-27 20:11:12,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2024-11-27 20:11:12,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:11:12,663 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:11:12,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-27 20:11:12,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:12,863 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:11:12,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:12,864 INFO L85 PathProgramCache]: Analyzing trace with hash -629136031, now seen corresponding path program 1 times [2024-11-27 20:11:12,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:11:12,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624019790] [2024-11-27 20:11:12,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:12,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:11:12,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [956271788] [2024-11-27 20:11:12,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:12,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:11:12,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:12,925 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:11:12,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-27 20:11:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:11:13,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 20:11:13,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:11:15,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-27 20:11:15,061 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:11:18,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-27 20:11:18,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:11:18,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624019790] [2024-11-27 20:11:18,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:11:18,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956271788] [2024-11-27 20:11:18,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956271788] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:11:18,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:11:18,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2024-11-27 20:11:18,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483164467] [2024-11-27 20:11:18,577 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:11:18,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 20:11:18,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:11:18,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 20:11:18,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:11:18,579 INFO L87 Difference]: Start difference. First operand 680 states and 744 transitions. Second operand has 28 states, 27 states have (on average 23.185185185185187) internal successors, (626), 28 states have internal predecessors, (626), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) [2024-11-27 20:11:27,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:11:36,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:11:55,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:11:59,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:03,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:07,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:09,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:14,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:15,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:20,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:22,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:25,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:30,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:39,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:43,277 WARN L539 Checker$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 20:12:44,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:48,649 WARN L539 Checker$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 20:12:53,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:12:55,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:00,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:01,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:03,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:06,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:10,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:12,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:17,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:21,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:25,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:28,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:31,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:34,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:38,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:42,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:47,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:52,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:13:54,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:00,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:04,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:09,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:10,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:17,217 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 50 DAG size of output: 49 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:14:20,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:23,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:27,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:32,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:36,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:42,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:45,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:47,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:52,479 WARN L539 Checker$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 20:14:56,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:57,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:14:58,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:15:04,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:15:08,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:15:11,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:15:15,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:15:22,878 WARN L539 Checker$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 20:15:34,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:34,986 INFO L93 Difference]: Finished difference Result 966 states and 1090 transitions. [2024-11-27 20:15:34,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-27 20:15:34,987 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 23.185185185185187) internal successors, (626), 28 states have internal predecessors, (626), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) Word has length 453 [2024-11-27 20:15:34,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:34,989 INFO L225 Difference]: With dead ends: 966 [2024-11-27 20:15:34,989 INFO L226 Difference]: Without dead ends: 902 [2024-11-27 20:15:34,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 878 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 38.5s TimeCoverageRelationStatistics Valid=497, Invalid=1141, Unknown=2, NotChecked=0, Total=1640 [2024-11-27 20:15:34,990 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 489 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 4523 mSolverCounterSat, 36 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 219.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2343 SdHoareTripleChecker+Invalid, 4582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4523 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 220.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:34,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 2343 Invalid, 4582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4523 Invalid, 23 Unknown, 0 Unchecked, 220.1s Time] [2024-11-27 20:15:34,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2024-11-27 20:15:35,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 787. [2024-11-27 20:15:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 708 states have (on average 1.0522598870056497) internal successors, (745), 724 states have internal predecessors, (745), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-27 20:15:35,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 867 transitions. [2024-11-27 20:15:35,137 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 867 transitions. Word has length 453 [2024-11-27 20:15:35,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:35,138 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 867 transitions. [2024-11-27 20:15:35,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 23.185185185185187) internal successors, (626), 28 states have internal predecessors, (626), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) [2024-11-27 20:15:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 867 transitions. [2024-11-27 20:15:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-27 20:15:35,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:35,140 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:35,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-27 20:15:35,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:35,340 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:15:35,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:35,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1071195712, now seen corresponding path program 2 times [2024-11-27 20:15:35,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:35,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017349361] [2024-11-27 20:15:35,341 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:15:35,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:35,399 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:15:35,399 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:15:35,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125965812] [2024-11-27 20:15:35,401 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:15:35,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:35,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:35,404 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:35,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-27 20:15:35,635 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:15:35,635 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:35,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-27 20:15:35,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:38,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2720 backedges. 0 proven. 860 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 20:15:38,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:39,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:39,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017349361] [2024-11-27 20:15:39,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:15:39,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125965812] [2024-11-27 20:15:39,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125965812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:39,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:15:39,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-11-27 20:15:39,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810195661] [2024-11-27 20:15:39,186 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:39,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:15:39,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:39,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:15:39,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:15:39,187 INFO L87 Difference]: Start difference. First operand 787 states and 867 transitions. Second operand has 22 states, 21 states have (on average 16.142857142857142) internal successors, (339), 22 states have internal predecessors, (339), 6 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) [2024-11-27 20:15:42,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:42,712 INFO L93 Difference]: Finished difference Result 814 states and 896 transitions. [2024-11-27 20:15:42,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 20:15:42,713 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 16.142857142857142) internal successors, (339), 22 states have internal predecessors, (339), 6 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) Word has length 491 [2024-11-27 20:15:42,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:42,715 INFO L225 Difference]: With dead ends: 814 [2024-11-27 20:15:42,715 INFO L226 Difference]: Without dead ends: 807 [2024-11-27 20:15:42,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=490, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:15:42,716 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 50 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 6828 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 6834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 6828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:42,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 854 Invalid, 6834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 6828 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-27 20:15:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2024-11-27 20:15:42,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 806. [2024-11-27 20:15:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 727 states have (on average 1.0536451169188445) internal successors, (766), 743 states have internal predecessors, (766), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-27 20:15:42,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 888 transitions. [2024-11-27 20:15:42,855 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 888 transitions. Word has length 491 [2024-11-27 20:15:42,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:42,855 INFO L471 AbstractCegarLoop]: Abstraction has 806 states and 888 transitions. [2024-11-27 20:15:42,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 16.142857142857142) internal successors, (339), 22 states have internal predecessors, (339), 6 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) [2024-11-27 20:15:42,856 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 888 transitions. [2024-11-27 20:15:42,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2024-11-27 20:15:42,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:42,859 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:42,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-27 20:15:43,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-27 20:15:43,063 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:15:43,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:43,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1373077922, now seen corresponding path program 2 times [2024-11-27 20:15:43,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:43,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251490883] [2024-11-27 20:15:43,064 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:15:43,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:43,119 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:15:43,119 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:15:43,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815204778] [2024-11-27 20:15:43,121 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:15:43,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:43,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:43,123 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:43,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-27 20:15:43,337 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:15:43,337 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:43,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-27 20:15:43,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:50,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2720 backedges. 0 proven. 860 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 20:15:50,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:16:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2720 backedges. 0 proven. 860 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 20:16:03,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:16:03,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251490883] [2024-11-27 20:16:03,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:16:03,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815204778] [2024-11-27 20:16:03,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815204778] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:16:03,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:16:03,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2024-11-27 20:16:03,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858416428] [2024-11-27 20:16:03,303 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:16:03,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-27 20:16:03,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:16:03,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-27 20:16:03,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=499, Invalid=1392, Unknown=1, NotChecked=0, Total=1892 [2024-11-27 20:16:03,305 INFO L87 Difference]: Start difference. First operand 806 states and 888 transitions. Second operand has 44 states, 43 states have (on average 15.767441860465116) internal successors, (678), 44 states have internal predecessors, (678), 12 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 12 states have call predecessors, (62), 12 states have call successors, (62) [2024-11-27 20:16:14,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:16:22,261 WARN L539 Checker$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 20:16:28,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:16:33,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:16:36,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:17:27,967 WARN L286 SmtUtils]: Spent 50.88s on a formula simplification that was a NOOP. DAG size: 152 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:17:32,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:17:42,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:17:46,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:17:54,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:18:32,712 WARN L286 SmtUtils]: Spent 33.93s on a formula simplification that was a NOOP. DAG size: 149 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:18:36,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:18:37,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:37,728 INFO L93 Difference]: Finished difference Result 886 states and 976 transitions. [2024-11-27 20:18:37,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-27 20:18:37,729 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 15.767441860465116) internal successors, (678), 44 states have internal predecessors, (678), 12 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 12 states have call predecessors, (62), 12 states have call successors, (62) Word has length 493 [2024-11-27 20:18:37,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:37,731 INFO L225 Difference]: With dead ends: 886 [2024-11-27 20:18:37,731 INFO L226 Difference]: Without dead ends: 884 [2024-11-27 20:18:37,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1011 GetRequests, 942 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 102.6s TimeCoverageRelationStatistics Valid=1336, Invalid=3633, Unknown=1, NotChecked=0, Total=4970 [2024-11-27 20:18:37,732 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 3233 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 7669 mSolverCounterSat, 308 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 7983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 7669 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:37,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 742 Invalid, 7983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 7669 Invalid, 6 Unknown, 0 Unchecked, 59.8s Time] [2024-11-27 20:18:37,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-27 20:18:37,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 879. [2024-11-27 20:18:37,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 794 states have (on average 1.0478589420654911) internal successors, (832), 810 states have internal predecessors, (832), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-27 20:18:37,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 966 transitions. [2024-11-27 20:18:37,863 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 966 transitions. Word has length 493 [2024-11-27 20:18:37,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:37,864 INFO L471 AbstractCegarLoop]: Abstraction has 879 states and 966 transitions. [2024-11-27 20:18:37,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 15.767441860465116) internal successors, (678), 44 states have internal predecessors, (678), 12 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 12 states have call predecessors, (62), 12 states have call successors, (62) [2024-11-27 20:18:37,864 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 966 transitions. [2024-11-27 20:18:37,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2024-11-27 20:18:37,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:37,866 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2024-11-27 20:18:37,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-27 20:18:38,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:18:38,066 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:18:38,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:38,067 INFO L85 PathProgramCache]: Analyzing trace with hash -50755622, now seen corresponding path program 3 times [2024-11-27 20:18:38,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:38,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963708452] [2024-11-27 20:18:38,067 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:18:38,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:38,177 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-27 20:18:38,178 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:18:38,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394772073] [2024-11-27 20:18:38,180 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:18:38,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:18:38,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:18:38,186 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:18:38,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_994fbe74-139e-4cab-a6a9-cb0284ce8077/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-27 20:18:38,332 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 20:18:38,332 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:18:38,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-27 20:18:38,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:18:39,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3192 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 2772 trivial. 0 not checked. [2024-11-27 20:18:39,054 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:18:39,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:39,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963708452] [2024-11-27 20:18:39,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:18:39,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394772073] [2024-11-27 20:18:39,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394772073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:39,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:39,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:18:39,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392691927] [2024-11-27 20:18:39,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:39,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:18:39,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:39,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:18:39,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:18:39,056 INFO L87 Difference]: Start difference. First operand 879 states and 966 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-27 20:18:44,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.48s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:18:48,999 WARN L539 Checker$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 20:18:51,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:18:55,082 WARN L539 Checker$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 20:18:56,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:18:58,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:06,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:08,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:09,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:12,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:15,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:19,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:20,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:24,900 WARN L539 Checker$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 20:19:28,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:32,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:36,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:40,913 WARN L539 Checker$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 20:19:44,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:48,930 WARN L539 Checker$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 20:19:54,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:19:58,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:03,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:07,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:11,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:15,195 WARN L539 Checker$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 20:20:19,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:23,211 WARN L539 Checker$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 20:20:28,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:32,252 WARN L539 Checker$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 20:20:36,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:40,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:44,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:48,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:52,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:20:56,324 WARN L539 Checker$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 20:21:00,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:21:04,328 WARN L539 Checker$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 20:21:08,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:21:12,332 WARN L539 Checker$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 20:21:16,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:21:20,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []