./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU --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 eb7e704db84b45f8c7f1cb386fc610e1107f57c6e67c0a3b2af510d7426cfd4f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:14:21,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:14:21,120 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:14:21,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:14:21,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:14:21,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:14:21,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:14:21,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:14:21,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:14:21,169 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:14:21,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:14:21,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:14:21,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:14:21,172 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:14:21,174 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:14:21,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:14:21,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:14:21,175 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:14:21,176 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:14:21,176 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:14:21,176 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:14:21,180 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:14:21,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:14:21,181 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:14:21,181 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:14:21,181 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:14:21,182 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:14:21,182 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:14:21,182 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:14:21,182 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:14:21,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:14:21,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:14:21,183 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:14:21,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:14:21,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:14:21,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:14:21,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:14:21,187 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:14:21,188 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:14:21,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:14:21,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:14:21,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:14:21,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:14:21,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:14:21,189 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb7e704db84b45f8c7f1cb386fc610e1107f57c6e67c0a3b2af510d7426cfd4f [2024-10-31 22:14:21,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:14:21,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:14:21,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:14:21,515 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:14:21,515 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:14:21,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.c Unable to find full path for "g++" [2024-10-31 22:14:23,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:14:23,877 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:14:23,880 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound5.c [2024-10-31 22:14:23,892 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/data/42e3704fe/f011cb7c7ce04d459d002c3cc153b625/FLAG32acfa5e0 [2024-10-31 22:14:24,238 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/data/42e3704fe/f011cb7c7ce04d459d002c3cc153b625 [2024-10-31 22:14:24,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:14:24,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:14:24,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:24,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:14:24,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:14:24,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b401cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24, skipping insertion in model container [2024-10-31 22:14:24,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,278 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:14:24,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:24,563 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:14:24,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:24,609 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:14:24,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24 WrapperNode [2024-10-31 22:14:24,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:24,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:24,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:14:24,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:14:24,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,650 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-10-31 22:14:24,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:24,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:14:24,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:14:24,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:14:24,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,668 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,690 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]. [2024-10-31 22:14:24,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,703 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:14:24,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:14:24,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:14:24,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:14:24,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (1/1) ... [2024-10-31 22:14:24,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:14:24,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:24,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:24,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:14:24,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:14:24,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:14:24,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:14:24,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:14:24,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:14:24,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:14:24,875 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:14:24,879 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:14:25,279 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-31 22:14:25,279 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:14:25,305 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:14:25,305 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:14:25,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:25 BoogieIcfgContainer [2024-10-31 22:14:25,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:14:25,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:14:25,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:14:25,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:14:25,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:14:24" (1/3) ... [2024-10-31 22:14:25,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4892df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:14:25, skipping insertion in model container [2024-10-31 22:14:25,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:24" (2/3) ... [2024-10-31 22:14:25,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4892df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:14:25, skipping insertion in model container [2024-10-31 22:14:25,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:25" (3/3) ... [2024-10-31 22:14:25,346 INFO L112 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound5.c [2024-10-31 22:14:25,370 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:14:25,371 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-31 22:14:25,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:14:25,464 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;@623e3ca8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:14:25,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-31 22:14:25,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.565217391304348) internal successors, (36), 27 states have internal predecessors, (36), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-31 22:14:25,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-31 22:14:25,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:25,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:14:25,478 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:25,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:25,484 INFO L85 PathProgramCache]: Analyzing trace with hash 889508776, now seen corresponding path program 1 times [2024-10-31 22:14:25,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:25,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447641570] [2024-10-31 22:14:25,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:25,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:25,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:25,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447641570] [2024-10-31 22:14:25,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447641570] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:25,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:25,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:25,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678774212] [2024-10-31 22:14:25,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:25,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:14:25,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:25,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:14:25,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:14:25,701 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.565217391304348) internal successors, (36), 27 states have internal predecessors, (36), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:25,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:25,726 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2024-10-31 22:14:25,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:14:25,728 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-31 22:14:25,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:25,734 INFO L225 Difference]: With dead ends: 72 [2024-10-31 22:14:25,735 INFO L226 Difference]: Without dead ends: 29 [2024-10-31 22:14:25,739 INFO L431 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 [2024-10-31 22:14:25,743 INFO L432 NwaCegarLoop]: 49 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, 49 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 [2024-10-31 22:14:25,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:25,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-10-31 22:14:25,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-10-31 22:14:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:14:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2024-10-31 22:14:25,805 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 6 [2024-10-31 22:14:25,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:25,805 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2024-10-31 22:14:25,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:25,806 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2024-10-31 22:14:25,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-31 22:14:25,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:25,807 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:14:25,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:14:25,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:25,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:25,810 INFO L85 PathProgramCache]: Analyzing trace with hash 889568358, now seen corresponding path program 1 times [2024-10-31 22:14:25,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:25,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210674093] [2024-10-31 22:14:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:25,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:25,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:25,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210674093] [2024-10-31 22:14:25,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210674093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:25,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:25,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:25,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104286213] [2024-10-31 22:14:25,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:25,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:14:25,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:25,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:14:25,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:14:25,936 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:26,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:26,003 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2024-10-31 22:14:26,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:14:26,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-31 22:14:26,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:26,005 INFO L225 Difference]: With dead ends: 34 [2024-10-31 22:14:26,006 INFO L226 Difference]: Without dead ends: 33 [2024-10-31 22:14:26,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:26,007 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 13 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:26,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 79 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:26,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-10-31 22:14:26,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2024-10-31 22:14:26,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:14:26,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2024-10-31 22:14:26,019 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 6 [2024-10-31 22:14:26,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:26,020 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2024-10-31 22:14:26,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:26,020 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-10-31 22:14:26,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 22:14:26,022 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:26,022 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:26,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:14:26,023 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:26,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:26,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815370, now seen corresponding path program 1 times [2024-10-31 22:14:26,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:26,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122644899] [2024-10-31 22:14:26,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:26,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:26,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:26,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122644899] [2024-10-31 22:14:26,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122644899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:26,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:26,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:14:26,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036878887] [2024-10-31 22:14:26,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:26,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:14:26,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:26,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:14:26,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:14:26,136 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-10-31 22:14:26,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:26,203 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2024-10-31 22:14:26,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:14:26,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2024-10-31 22:14:26,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:26,205 INFO L225 Difference]: With dead ends: 51 [2024-10-31 22:14:26,205 INFO L226 Difference]: Without dead ends: 32 [2024-10-31 22:14:26,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:14:26,207 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:26,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 88 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:26,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-31 22:14:26,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-31 22:14:26,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 24 states have internal predecessors, (28), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:14:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 40 transitions. [2024-10-31 22:14:26,221 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 40 transitions. Word has length 7 [2024-10-31 22:14:26,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:26,223 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 40 transitions. [2024-10-31 22:14:26,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-10-31 22:14:26,224 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2024-10-31 22:14:26,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 22:14:26,225 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:26,225 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:26,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:14:26,225 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:26,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:26,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1510249073, now seen corresponding path program 1 times [2024-10-31 22:14:26,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:26,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912155251] [2024-10-31 22:14:26,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:26,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:26,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:26,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:26,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912155251] [2024-10-31 22:14:26,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912155251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:26,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:26,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:14:26,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746862014] [2024-10-31 22:14:26,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:26,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:14:26,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:26,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:14:26,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:14:26,413 INFO L87 Difference]: Start difference. First operand 32 states and 40 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2024-10-31 22:14:26,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:26,545 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2024-10-31 22:14:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:14:26,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2024-10-31 22:14:26,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:26,547 INFO L225 Difference]: With dead ends: 32 [2024-10-31 22:14:26,549 INFO L226 Difference]: Without dead ends: 31 [2024-10-31 22:14:26,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:14:26,551 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 32 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:26,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 73 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:14:26,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-10-31 22:14:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-10-31 22:14:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 23 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:14:26,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2024-10-31 22:14:26,564 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 11 [2024-10-31 22:14:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:26,565 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2024-10-31 22:14:26,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2024-10-31 22:14:26,565 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2024-10-31 22:14:26,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-31 22:14:26,566 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:26,566 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:26,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:14:26,566 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:26,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:26,567 INFO L85 PathProgramCache]: Analyzing trace with hash 426919062, now seen corresponding path program 1 times [2024-10-31 22:14:26,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:26,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999565573] [2024-10-31 22:14:26,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:26,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:26,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:26,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999565573] [2024-10-31 22:14:26,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999565573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:26,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:14:26,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:14:26,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720969596] [2024-10-31 22:14:26,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:26,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:14:26,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:26,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:14:26,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:14:26,712 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2024-10-31 22:14:26,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:26,789 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2024-10-31 22:14:26,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:14:26,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2024-10-31 22:14:26,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:26,791 INFO L225 Difference]: With dead ends: 41 [2024-10-31 22:14:26,791 INFO L226 Difference]: Without dead ends: 40 [2024-10-31 22:14:26,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:14:26,793 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 12 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:26,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 106 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:14:26,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-31 22:14:26,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2024-10-31 22:14:26,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 27 states have internal predecessors, (32), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:14:26,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2024-10-31 22:14:26,809 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 12 [2024-10-31 22:14:26,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:26,810 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2024-10-31 22:14:26,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2024-10-31 22:14:26,810 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2024-10-31 22:14:26,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-31 22:14:26,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:26,811 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:26,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:14:26,812 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:26,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:26,812 INFO L85 PathProgramCache]: Analyzing trace with hash 426957791, now seen corresponding path program 1 times [2024-10-31 22:14:26,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:26,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691093842] [2024-10-31 22:14:26,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:26,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:26,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:26,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691093842] [2024-10-31 22:14:26,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691093842] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:26,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490473548] [2024-10-31 22:14:26,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:26,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:26,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:26,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:26,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:14:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:27,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:14:27,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:27,115 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:27,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:27,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490473548] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:27,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:27,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-10-31 22:14:27,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909916767] [2024-10-31 22:14:27,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:27,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:14:27,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:27,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:14:27,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:14:27,206 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:27,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:27,414 INFO L93 Difference]: Finished difference Result 74 states and 95 transitions. [2024-10-31 22:14:27,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:14:27,418 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-31 22:14:27,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:27,419 INFO L225 Difference]: With dead ends: 74 [2024-10-31 22:14:27,420 INFO L226 Difference]: Without dead ends: 56 [2024-10-31 22:14:27,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:14:27,421 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 35 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:27,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 140 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:14:27,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-10-31 22:14:27,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2024-10-31 22:14:27,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 40 states have internal predecessors, (48), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:14:27,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2024-10-31 22:14:27,441 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 12 [2024-10-31 22:14:27,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:27,441 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2024-10-31 22:14:27,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:14:27,444 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2024-10-31 22:14:27,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-31 22:14:27,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:27,445 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:27,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:14:27,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-31 22:14:27,646 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:27,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:27,647 INFO L85 PathProgramCache]: Analyzing trace with hash 850134625, now seen corresponding path program 1 times [2024-10-31 22:14:27,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:27,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950995734] [2024-10-31 22:14:27,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:27,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:27,853 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:27,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:27,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950995734] [2024-10-31 22:14:27,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950995734] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:27,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384162689] [2024-10-31 22:14:27,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:27,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:27,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:27,860 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:27,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:14:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:27,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:14:27,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:27,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:28,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384162689] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:28,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:28,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-10-31 22:14:28,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696403554] [2024-10-31 22:14:28,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:28,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:14:28,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:28,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:14:28,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:14:28,096 INFO L87 Difference]: Start difference. First operand 48 states and 60 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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) [2024-10-31 22:14:32,421 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 [] [2024-10-31 22:14:36,431 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 [] [2024-10-31 22:14:36,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:36,524 INFO L93 Difference]: Finished difference Result 80 states and 103 transitions. [2024-10-31 22:14:36,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-31 22:14:36,525 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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 17 [2024-10-31 22:14:36,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:36,526 INFO L225 Difference]: With dead ends: 80 [2024-10-31 22:14:36,526 INFO L226 Difference]: Without dead ends: 79 [2024-10-31 22:14:36,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2024-10-31 22:14:36,527 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 74 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:36,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 172 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2024-10-31 22:14:36,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-31 22:14:36,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 66. [2024-10-31 22:14:36,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 50 states have (on average 1.24) internal successors, (62), 51 states have internal predecessors, (62), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:14:36,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2024-10-31 22:14:36,541 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 17 [2024-10-31 22:14:36,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:36,542 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2024-10-31 22:14:36,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 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) [2024-10-31 22:14:36,542 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2024-10-31 22:14:36,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-31 22:14:36,543 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:36,544 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2024-10-31 22:14:36,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:14:36,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:36,745 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:36,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:36,745 INFO L85 PathProgramCache]: Analyzing trace with hash -924745014, now seen corresponding path program 2 times [2024-10-31 22:14:36,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:36,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91721312] [2024-10-31 22:14:36,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:36,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:37,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:37,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91721312] [2024-10-31 22:14:37,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91721312] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:37,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498029957] [2024-10-31 22:14:37,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:14:37,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:37,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:37,087 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:37,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:14:37,157 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:14:37,158 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:37,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:14:37,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:37,269 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:37,269 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:37,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498029957] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:37,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:37,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-31 22:14:37,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845049306] [2024-10-31 22:14:37,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:37,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-31 22:14:37,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:37,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-31 22:14:37,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:14:37,723 INFO L87 Difference]: Start difference. First operand 66 states and 86 transitions. Second operand has 22 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 21 states have internal predecessors, (54), 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) [2024-10-31 22:14:38,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:38,595 INFO L93 Difference]: Finished difference Result 144 states and 185 transitions. [2024-10-31 22:14:38,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-10-31 22:14:38,601 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 21 states have internal predecessors, (54), 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 27 [2024-10-31 22:14:38,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:38,602 INFO L225 Difference]: With dead ends: 144 [2024-10-31 22:14:38,603 INFO L226 Difference]: Without dead ends: 123 [2024-10-31 22:14:38,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2024-10-31 22:14:38,605 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 136 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:38,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 216 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:14:38,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-10-31 22:14:38,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 94. [2024-10-31 22:14:38,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 79 states have internal predecessors, (97), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:14:38,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-10-31 22:14:38,663 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 27 [2024-10-31 22:14:38,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:38,665 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-10-31 22:14:38,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.5714285714285716) internal successors, (54), 21 states have internal predecessors, (54), 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) [2024-10-31 22:14:38,665 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-10-31 22:14:38,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-31 22:14:38,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:38,666 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:38,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:14:38,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:38,867 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:38,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:38,868 INFO L85 PathProgramCache]: Analyzing trace with hash -847775146, now seen corresponding path program 2 times [2024-10-31 22:14:38,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:38,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191980661] [2024-10-31 22:14:38,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:38,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:39,186 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:39,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:39,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191980661] [2024-10-31 22:14:39,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191980661] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:39,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720154348] [2024-10-31 22:14:39,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:14:39,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:39,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:39,189 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:39,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:14:39,237 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:14:39,238 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:39,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:39,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:39,282 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-10-31 22:14:39,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:14:39,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720154348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:39,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:14:39,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2024-10-31 22:14:39,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588356338] [2024-10-31 22:14:39,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:39,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:14:39,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:39,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:14:39,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:14:39,284 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-10-31 22:14:39,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:39,399 INFO L93 Difference]: Finished difference Result 102 states and 129 transitions. [2024-10-31 22:14:39,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:14:39,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 32 [2024-10-31 22:14:39,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:39,404 INFO L225 Difference]: With dead ends: 102 [2024-10-31 22:14:39,404 INFO L226 Difference]: Without dead ends: 101 [2024-10-31 22:14:39,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:14:39,405 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 11 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:39,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 91 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:14:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-10-31 22:14:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 94. [2024-10-31 22:14:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 78 states have (on average 1.2435897435897436) internal successors, (97), 79 states have internal predecessors, (97), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:14:39,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-10-31 22:14:39,432 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 32 [2024-10-31 22:14:39,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:39,432 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-10-31 22:14:39,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-10-31 22:14:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-10-31 22:14:39,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-31 22:14:39,434 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:39,434 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:39,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:14:39,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:39,635 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:39,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:39,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1436603759, now seen corresponding path program 1 times [2024-10-31 22:14:39,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:39,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265235326] [2024-10-31 22:14:39,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:39,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:40,021 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:40,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:40,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265235326] [2024-10-31 22:14:40,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265235326] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:40,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88560539] [2024-10-31 22:14:40,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:40,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:40,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:40,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:40,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:14:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:40,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-31 22:14:40,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:40,202 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:40,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:14:40,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88560539] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:40,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:40,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 28 [2024-10-31 22:14:40,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124947003] [2024-10-31 22:14:40,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:40,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-10-31 22:14:40,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:40,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-10-31 22:14:40,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2024-10-31 22:14:40,820 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 30 states, 29 states have (on average 2.4827586206896552) internal successors, (72), 29 states have internal predecessors, (72), 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) [2024-10-31 22:14:46,261 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 [] [2024-10-31 22:14:46,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:46,437 INFO L93 Difference]: Finished difference Result 185 states and 232 transitions. [2024-10-31 22:14:46,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-10-31 22:14:46,438 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.4827586206896552) internal successors, (72), 29 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-10-31 22:14:46,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:46,440 INFO L225 Difference]: With dead ends: 185 [2024-10-31 22:14:46,440 INFO L226 Difference]: Without dead ends: 183 [2024-10-31 22:14:46,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1070 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1114, Invalid=3442, Unknown=0, NotChecked=0, Total=4556 [2024-10-31 22:14:46,443 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 261 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:46,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 149 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 198 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-10-31 22:14:46,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-10-31 22:14:46,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 105. [2024-10-31 22:14:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 89 states have (on average 1.2696629213483146) internal successors, (113), 90 states have internal predecessors, (113), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:14:46,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 137 transitions. [2024-10-31 22:14:46,471 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 137 transitions. Word has length 36 [2024-10-31 22:14:46,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:46,472 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 137 transitions. [2024-10-31 22:14:46,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 2.4827586206896552) internal successors, (72), 29 states have internal predecessors, (72), 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) [2024-10-31 22:14:46,472 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 137 transitions. [2024-10-31 22:14:46,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-31 22:14:46,478 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:46,478 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 1, 1, 1, 1, 1] [2024-10-31 22:14:46,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:46,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:14:46,679 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:46,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:46,680 INFO L85 PathProgramCache]: Analyzing trace with hash 27395914, now seen corresponding path program 3 times [2024-10-31 22:14:46,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:46,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602665016] [2024-10-31 22:14:46,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:46,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:46,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 106 proven. 5 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-10-31 22:14:46,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:46,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602665016] [2024-10-31 22:14:46,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602665016] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:46,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582101609] [2024-10-31 22:14:46,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:14:46,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:46,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:46,857 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:46,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:14:46,918 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-31 22:14:46,919 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:14:46,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:14:46,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:46,951 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-10-31 22:14:46,952 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:14:46,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582101609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:14:46,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:14:46,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2024-10-31 22:14:46,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397057068] [2024-10-31 22:14:46,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:14:46,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:14:46,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:46,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:14:46,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:14:46,953 INFO L87 Difference]: Start difference. First operand 105 states and 137 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-10-31 22:14:47,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:47,048 INFO L93 Difference]: Finished difference Result 111 states and 143 transitions. [2024-10-31 22:14:47,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:14:47,051 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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 67 [2024-10-31 22:14:47,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:47,052 INFO L225 Difference]: With dead ends: 111 [2024-10-31 22:14:47,052 INFO L226 Difference]: Without dead ends: 110 [2024-10-31 22:14:47,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:14:47,053 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:47,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 101 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:14:47,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-31 22:14:47,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 104. [2024-10-31 22:14:47,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 89 states have (on average 1.2584269662921348) internal successors, (112), 89 states have internal predecessors, (112), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:14:47,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2024-10-31 22:14:47,073 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 136 transitions. Word has length 67 [2024-10-31 22:14:47,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:47,073 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 136 transitions. [2024-10-31 22:14:47,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 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) [2024-10-31 22:14:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 136 transitions. [2024-10-31 22:14:47,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-31 22:14:47,080 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:47,080 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:47,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:47,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:47,281 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:47,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:47,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1110964316, now seen corresponding path program 1 times [2024-10-31 22:14:47,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:47,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73045668] [2024-10-31 22:14:47,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:47,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:47,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-31 22:14:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:47,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:14:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:47,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:14:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:47,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-31 22:14:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:47,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-31 22:14:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:47,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-31 22:14:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:47,770 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 94 proven. 5 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-10-31 22:14:47,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:47,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73045668] [2024-10-31 22:14:47,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73045668] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:47,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287703759] [2024-10-31 22:14:47,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:47,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:47,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:47,774 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:47,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:14:47,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:47,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:14:47,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:47,997 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 94 proven. 5 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-10-31 22:14:47,997 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:48,326 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 94 proven. 5 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-10-31 22:14:48,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287703759] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:48,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:48,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 14 [2024-10-31 22:14:48,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837988564] [2024-10-31 22:14:48,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:48,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:14:48,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:48,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:14:48,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:14:48,330 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-31 22:14:48,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:48,720 INFO L93 Difference]: Finished difference Result 152 states and 196 transitions. [2024-10-31 22:14:48,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-31 22:14:48,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 77 [2024-10-31 22:14:48,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:48,722 INFO L225 Difference]: With dead ends: 152 [2024-10-31 22:14:48,722 INFO L226 Difference]: Without dead ends: 81 [2024-10-31 22:14:48,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 154 SyntacticMatches, 11 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2024-10-31 22:14:48,723 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 36 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:48,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 158 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:14:48,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-31 22:14:48,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 69. [2024-10-31 22:14:48,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.1481481481481481) internal successors, (62), 54 states have internal predecessors, (62), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:14:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2024-10-31 22:14:48,737 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 77 [2024-10-31 22:14:48,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:48,737 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2024-10-31 22:14:48,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 1 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-10-31 22:14:48,738 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2024-10-31 22:14:48,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-31 22:14:48,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:48,740 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:48,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-31 22:14:48,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-31 22:14:48,941 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:48,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:48,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1919738262, now seen corresponding path program 1 times [2024-10-31 22:14:48,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:48,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450810710] [2024-10-31 22:14:48,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:48,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:14:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-31 22:14:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-31 22:14:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:14:49,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:14:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:14:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-31 22:14:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-31 22:14:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-31 22:14:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-31 22:14:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-31 22:14:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 22:14:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,389 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-31 22:14:49,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:14:49,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450810710] [2024-10-31 22:14:49,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450810710] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:14:49,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627173286] [2024-10-31 22:14:49,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:49,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:49,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:49,392 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:49,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:14:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:14:49,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:14:49,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:14:49,789 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-10-31 22:14:49,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:14:50,215 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-31 22:14:50,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627173286] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:14:50,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:14:50,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 17 [2024-10-31 22:14:50,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280026881] [2024-10-31 22:14:50,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:14:50,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:14:50,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:14:50,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:14:50,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:14:50,218 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-10-31 22:14:54,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-31 22:14:58,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-31 22:14:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:14:58,830 INFO L93 Difference]: Finished difference Result 172 states and 228 transitions. [2024-10-31 22:14:58,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-31 22:14:58,832 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 84 [2024-10-31 22:14:58,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:14:58,834 INFO L225 Difference]: With dead ends: 172 [2024-10-31 22:14:58,835 INFO L226 Difference]: Without dead ends: 171 [2024-10-31 22:14:58,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=302, Invalid=820, Unknown=0, NotChecked=0, Total=1122 [2024-10-31 22:14:58,838 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 104 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:14:58,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 207 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2024-10-31 22:14:58,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-10-31 22:14:58,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 133. [2024-10-31 22:14:58,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 90 states have (on average 1.1333333333333333) internal successors, (102), 90 states have internal predecessors, (102), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-31 22:14:58,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 174 transitions. [2024-10-31 22:14:58,872 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 174 transitions. Word has length 84 [2024-10-31 22:14:58,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:14:58,872 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 174 transitions. [2024-10-31 22:14:58,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 4 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-10-31 22:14:58,873 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 174 transitions. [2024-10-31 22:14:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-31 22:14:58,874 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:14:58,874 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:14:58,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:14:59,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10658e9-5287-4d56-8ae8-fe5440111a75/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-31 22:14:59,078 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-31 22:14:59,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:59,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1801430346, now seen corresponding path program 1 times [2024-10-31 22:14:59,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:59,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961778166] [2024-10-31 22:14:59,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:59,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms