./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_08_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_08_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1 --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 64bit --witnessprinter.graph.data.programhash 8a6c77f9d60c801167e12488cbdb1cb0a083b368ce7731d254f73c04ba64ccbe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:38:04,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:38:04,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 13:38:04,394 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:38:04,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:38:04,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:38:04,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:38:04,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:38:04,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:38:04,417 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:38:04,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:38:04,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:38:04,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:38:04,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:38:04,417 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:38:04,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:38:04,418 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:38:04,419 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:38:04,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:38:04,419 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:38:04,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:38:04,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:38:04,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:38:04,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:38:04,419 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:38:04,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:38:04,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:38:04,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:38:04,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:38:04,420 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:38:04,420 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:38:04,420 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:38:04,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:38:04,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:38:04,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:38:04,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:38:04,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:38:04,420 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a6c77f9d60c801167e12488cbdb1cb0a083b368ce7731d254f73c04ba64ccbe [2024-12-02 13:38:04,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:38:04,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:38:04,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:38:04,671 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:38:04,671 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:38:04,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_08_good.i [2024-12-02 13:38:07,387 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/data/1f7b35c75/1793f46ab36b448a845aefe7ed649561/FLAGe3db1b94e [2024-12-02 13:38:07,723 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:38:07,724 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_08_good.i [2024-12-02 13:38:07,742 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/data/1f7b35c75/1793f46ab36b448a845aefe7ed649561/FLAGe3db1b94e [2024-12-02 13:38:07,975 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/data/1f7b35c75/1793f46ab36b448a845aefe7ed649561 [2024-12-02 13:38:07,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:38:07,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:38:07,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:38:07,980 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:38:07,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:38:07,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:07" (1/1) ... [2024-12-02 13:38:07,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa81db6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:07, skipping insertion in model container [2024-12-02 13:38:07,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:07" (1/1) ... [2024-12-02 13:38:08,023 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:38:08,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:38:08,690 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:38:08,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:38:08,878 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:38:08,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08 WrapperNode [2024-12-02 13:38:08,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:38:08,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:38:08,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:38:08,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:38:08,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,916 INFO L138 Inliner]: procedures = 503, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 121 [2024-12-02 13:38:08,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:38:08,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:38:08,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:38:08,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:38:08,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,929 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,939 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 13:38:08,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,944 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:38:08,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:38:08,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:38:08,952 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:38:08,953 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (1/1) ... [2024-12-02 13:38:08,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:38:08,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:38:08,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:38:08,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:38:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-12-02 13:38:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-12-02 13:38:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 13:38:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 13:38:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:38:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:38:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:38:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2024-12-02 13:38:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2024-12-02 13:38:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsFalse [2024-12-02 13:38:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsFalse [2024-12-02 13:38:09,132 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:38:09,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:38:09,343 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-12-02 13:38:09,343 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:38:09,354 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:38:09,355 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 13:38:09,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:09 BoogieIcfgContainer [2024-12-02 13:38:09,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:38:09,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:38:09,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:38:09,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:38:09,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:38:07" (1/3) ... [2024-12-02 13:38:09,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d22a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:09, skipping insertion in model container [2024-12-02 13:38:09,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:08" (2/3) ... [2024-12-02 13:38:09,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d22a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:09, skipping insertion in model container [2024-12-02 13:38:09,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:09" (3/3) ... [2024-12-02 13:38:09,365 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_postdec_08_good.i [2024-12-02 13:38:09,381 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:38:09,382 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_min_postdec_08_good.i that has 5 procedures, 81 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2024-12-02 13:38:09,434 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:38:09,444 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;@2acc653, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:38:09,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-12-02 13:38:09,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 50 states have (on average 1.38) internal successors, (69), 62 states have internal predecessors, (69), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 13:38:09,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-02 13:38:09,454 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:09,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:09,454 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:09,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:09,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1192752490, now seen corresponding path program 1 times [2024-12-02 13:38:09,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:09,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526402937] [2024-12-02 13:38:09,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:09,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:09,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:38:09,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:09,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526402937] [2024-12-02 13:38:09,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526402937] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:09,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:09,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:38:09,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470235592] [2024-12-02 13:38:09,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:09,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:38:09,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:09,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:38:09,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:38:09,733 INFO L87 Difference]: Start difference. First operand has 81 states, 50 states have (on average 1.38) internal successors, (69), 62 states have internal predecessors, (69), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 13:38:09,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:09,777 INFO L93 Difference]: Finished difference Result 155 states and 199 transitions. [2024-12-02 13:38:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:38:09,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-12-02 13:38:09,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:09,786 INFO L225 Difference]: With dead ends: 155 [2024-12-02 13:38:09,786 INFO L226 Difference]: Without dead ends: 78 [2024-12-02 13:38:09,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:38:09,793 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:09,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 213 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:09,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-12-02 13:38:09,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2024-12-02 13:38:09,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 58 states have internal predecessors, (65), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2024-12-02 13:38:09,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2024-12-02 13:38:09,834 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 22 [2024-12-02 13:38:09,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:09,835 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2024-12-02 13:38:09,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 13:38:09,835 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2024-12-02 13:38:09,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-02 13:38:09,837 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:09,837 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:09,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:38:09,837 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:09,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:09,838 INFO L85 PathProgramCache]: Analyzing trace with hash -512694120, now seen corresponding path program 1 times [2024-12-02 13:38:09,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:09,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799331649] [2024-12-02 13:38:09,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:09,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:09,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:38:09,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:09,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799331649] [2024-12-02 13:38:09,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799331649] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:09,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:09,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:38:09,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517894133] [2024-12-02 13:38:09,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:09,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:09,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:09,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:09,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:09,983 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 13:38:10,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:10,009 INFO L93 Difference]: Finished difference Result 131 states and 168 transitions. [2024-12-02 13:38:10,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:10,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-12-02 13:38:10,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:10,011 INFO L225 Difference]: With dead ends: 131 [2024-12-02 13:38:10,011 INFO L226 Difference]: Without dead ends: 66 [2024-12-02 13:38:10,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:10,012 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:10,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:10,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-12-02 13:38:10,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-12-02 13:38:10,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 49 states have internal predecessors, (54), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:10,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2024-12-02 13:38:10,021 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 22 [2024-12-02 13:38:10,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:10,021 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2024-12-02 13:38:10,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 13:38:10,021 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2024-12-02 13:38:10,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 13:38:10,022 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:10,022 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:10,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:38:10,022 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:10,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:10,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1523660820, now seen corresponding path program 1 times [2024-12-02 13:38:10,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:10,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104548886] [2024-12-02 13:38:10,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:10,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:10,115 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 13:38:10,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:10,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104548886] [2024-12-02 13:38:10,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104548886] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:10,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:10,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:38:10,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935589438] [2024-12-02 13:38:10,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:10,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:10,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:10,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:10,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:10,118 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:38:10,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:10,139 INFO L93 Difference]: Finished difference Result 119 states and 149 transitions. [2024-12-02 13:38:10,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:10,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-12-02 13:38:10,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:10,141 INFO L225 Difference]: With dead ends: 119 [2024-12-02 13:38:10,141 INFO L226 Difference]: Without dead ends: 65 [2024-12-02 13:38:10,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:10,142 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:10,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:10,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-12-02 13:38:10,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-12-02 13:38:10,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 48 states have internal predecessors, (53), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 13:38:10,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 81 transitions. [2024-12-02 13:38:10,148 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 81 transitions. Word has length 40 [2024-12-02 13:38:10,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:10,149 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 81 transitions. [2024-12-02 13:38:10,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:38:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 81 transitions. [2024-12-02 13:38:10,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 13:38:10,150 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:10,150 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:10,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:38:10,150 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:10,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:10,151 INFO L85 PathProgramCache]: Analyzing trace with hash 792919792, now seen corresponding path program 1 times [2024-12-02 13:38:10,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:10,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540024768] [2024-12-02 13:38:10,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:10,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 13:38:10,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:10,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540024768] [2024-12-02 13:38:10,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540024768] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:10,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:10,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:38:10,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357210667] [2024-12-02 13:38:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:10,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:38:10,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:10,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:38:10,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:38:10,210 INFO L87 Difference]: Start difference. First operand 65 states and 81 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:38:10,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:10,233 INFO L93 Difference]: Finished difference Result 114 states and 139 transitions. [2024-12-02 13:38:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:38:10,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2024-12-02 13:38:10,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:10,234 INFO L225 Difference]: With dead ends: 114 [2024-12-02 13:38:10,234 INFO L226 Difference]: Without dead ends: 70 [2024-12-02 13:38:10,235 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:38:10,236 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 1 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:10,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 162 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:10,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-12-02 13:38:10,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2024-12-02 13:38:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 51 states have internal predecessors, (57), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-12-02 13:38:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 87 transitions. [2024-12-02 13:38:10,241 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 87 transitions. Word has length 41 [2024-12-02 13:38:10,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:10,242 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 87 transitions. [2024-12-02 13:38:10,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:38:10,242 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2024-12-02 13:38:10,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 13:38:10,243 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:10,243 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:10,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:38:10,243 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:10,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:10,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1472978162, now seen corresponding path program 1 times [2024-12-02 13:38:10,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:10,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569033667] [2024-12-02 13:38:10,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:10,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:10,324 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 13:38:10,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:10,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569033667] [2024-12-02 13:38:10,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569033667] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:38:10,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146574022] [2024-12-02 13:38:10,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:10,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:10,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:38:10,328 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:38:10,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:38:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:10,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:38:10,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:38:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 13:38:10,480 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:38:10,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146574022] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:10,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:38:10,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 13:38:10,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895481254] [2024-12-02 13:38:10,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:10,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:10,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:10,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:10,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:38:10,481 INFO L87 Difference]: Start difference. First operand 69 states and 87 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:38:10,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:10,506 INFO L93 Difference]: Finished difference Result 108 states and 132 transitions. [2024-12-02 13:38:10,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:10,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2024-12-02 13:38:10,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:10,507 INFO L225 Difference]: With dead ends: 108 [2024-12-02 13:38:10,507 INFO L226 Difference]: Without dead ends: 59 [2024-12-02 13:38:10,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:38:10,509 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:10,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:10,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-12-02 13:38:10,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-12-02 13:38:10,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 43 states have internal predecessors, (46), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 13:38:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2024-12-02 13:38:10,517 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 41 [2024-12-02 13:38:10,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:10,517 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2024-12-02 13:38:10,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 13:38:10,518 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2024-12-02 13:38:10,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 13:38:10,519 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:10,519 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:10,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:38:10,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:10,720 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:10,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:10,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2019893220, now seen corresponding path program 1 times [2024-12-02 13:38:10,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:10,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736710317] [2024-12-02 13:38:10,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:10,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:10,814 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 13:38:10,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:10,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736710317] [2024-12-02 13:38:10,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736710317] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:38:10,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834266903] [2024-12-02 13:38:10,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:10,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:10,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:38:10,817 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:38:10,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:38:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:10,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:38:10,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:38:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 13:38:10,948 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:38:10,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834266903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:10,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:38:10,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 13:38:10,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251091045] [2024-12-02 13:38:10,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:10,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:10,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:10,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:10,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:38:10,951 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 13:38:10,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:10,968 INFO L93 Difference]: Finished difference Result 97 states and 115 transitions. [2024-12-02 13:38:10,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:10,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2024-12-02 13:38:10,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:10,970 INFO L225 Difference]: With dead ends: 97 [2024-12-02 13:38:10,970 INFO L226 Difference]: Without dead ends: 59 [2024-12-02 13:38:10,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:38:10,971 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:10,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 202 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:10,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-12-02 13:38:10,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-12-02 13:38:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 42 states have internal predecessors, (45), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 13:38:10,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2024-12-02 13:38:10,979 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 53 [2024-12-02 13:38:10,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:10,979 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2024-12-02 13:38:10,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 13:38:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2024-12-02 13:38:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 13:38:10,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:10,980 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:10,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:38:11,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 13:38:11,181 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:11,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:11,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1991217318, now seen corresponding path program 1 times [2024-12-02 13:38:11,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:11,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475100615] [2024-12-02 13:38:11,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:11,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:11,268 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 13:38:11,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:11,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475100615] [2024-12-02 13:38:11,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475100615] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:11,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:11,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:38:11,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55788924] [2024-12-02 13:38:11,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:11,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:11,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:11,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:11,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:11,270 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 13:38:11,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:11,295 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2024-12-02 13:38:11,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:11,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 59 [2024-12-02 13:38:11,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:11,297 INFO L225 Difference]: With dead ends: 60 [2024-12-02 13:38:11,297 INFO L226 Difference]: Without dead ends: 59 [2024-12-02 13:38:11,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:11,298 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 4 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:11,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 186 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:11,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-12-02 13:38:11,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2024-12-02 13:38:11,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 41 states have internal predecessors, (44), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-12-02 13:38:11,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2024-12-02 13:38:11,307 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 59 [2024-12-02 13:38:11,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:11,308 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2024-12-02 13:38:11,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 13:38:11,308 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2024-12-02 13:38:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-12-02 13:38:11,309 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:11,309 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:11,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:38:11,310 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:11,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:11,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1598194590, now seen corresponding path program 1 times [2024-12-02 13:38:11,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:11,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44481199] [2024-12-02 13:38:11,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:11,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 13:38:11,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:11,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44481199] [2024-12-02 13:38:11,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44481199] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:11,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:11,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:38:11,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065149875] [2024-12-02 13:38:11,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:11,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:11,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:11,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:11,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:11,378 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 13:38:11,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:11,400 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2024-12-02 13:38:11,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:11,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 60 [2024-12-02 13:38:11,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:11,401 INFO L225 Difference]: With dead ends: 65 [2024-12-02 13:38:11,402 INFO L226 Difference]: Without dead ends: 64 [2024-12-02 13:38:11,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:11,403 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 1 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:11,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 195 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:11,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-12-02 13:38:11,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2024-12-02 13:38:11,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 44 states have internal predecessors, (49), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 13:38:11,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2024-12-02 13:38:11,411 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 60 [2024-12-02 13:38:11,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:11,412 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2024-12-02 13:38:11,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 13:38:11,412 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2024-12-02 13:38:11,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-02 13:38:11,414 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:11,414 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:11,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:38:11,414 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:11,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:11,415 INFO L85 PathProgramCache]: Analyzing trace with hash 2102408924, now seen corresponding path program 1 times [2024-12-02 13:38:11,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:11,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701159869] [2024-12-02 13:38:11,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:11,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:11,485 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-02 13:38:11,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:11,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701159869] [2024-12-02 13:38:11,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701159869] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:11,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:11,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:38:11,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715518282] [2024-12-02 13:38:11,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:11,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:11,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:11,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:11,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:11,487 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 13:38:11,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:11,504 INFO L93 Difference]: Finished difference Result 86 states and 101 transitions. [2024-12-02 13:38:11,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:11,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 65 [2024-12-02 13:38:11,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:11,506 INFO L225 Difference]: With dead ends: 86 [2024-12-02 13:38:11,506 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 13:38:11,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:11,507 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:11,507 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:11,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 13:38:11,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-12-02 13:38:11,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 38 states have (on average 1.105263157894737) internal successors, (42), 39 states have internal predecessors, (42), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:38:11,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2024-12-02 13:38:11,515 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 65 [2024-12-02 13:38:11,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:11,515 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2024-12-02 13:38:11,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 13:38:11,515 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2024-12-02 13:38:11,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-02 13:38:11,516 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:11,516 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:11,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 13:38:11,517 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:11,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:11,517 INFO L85 PathProgramCache]: Analyzing trace with hash -71090319, now seen corresponding path program 1 times [2024-12-02 13:38:11,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:11,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555058578] [2024-12-02 13:38:11,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:11,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-02 13:38:11,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:11,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555058578] [2024-12-02 13:38:11,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555058578] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:38:11,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144801636] [2024-12-02 13:38:11,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:11,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:11,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:38:11,593 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:38:11,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:38:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:11,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:38:11,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:38:11,725 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 13:38:11,725 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:38:11,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144801636] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:11,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:38:11,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 13:38:11,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382398876] [2024-12-02 13:38:11,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:11,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:11,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:11,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:11,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:38:11,727 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:38:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:11,744 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2024-12-02 13:38:11,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:11,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 72 [2024-12-02 13:38:11,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:11,746 INFO L225 Difference]: With dead ends: 70 [2024-12-02 13:38:11,746 INFO L226 Difference]: Without dead ends: 56 [2024-12-02 13:38:11,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:38:11,747 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:11,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:11,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-12-02 13:38:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-12-02 13:38:11,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 39 states have internal predecessors, (41), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:38:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 65 transitions. [2024-12-02 13:38:11,752 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 65 transitions. Word has length 72 [2024-12-02 13:38:11,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:11,752 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 65 transitions. [2024-12-02 13:38:11,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 13:38:11,753 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 65 transitions. [2024-12-02 13:38:11,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 13:38:11,754 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:11,754 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:11,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:38:11,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:11,955 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:11,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:11,955 INFO L85 PathProgramCache]: Analyzing trace with hash -159561051, now seen corresponding path program 1 times [2024-12-02 13:38:11,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:11,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522880248] [2024-12-02 13:38:11,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:11,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:12,016 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-02 13:38:12,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:12,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522880248] [2024-12-02 13:38:12,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522880248] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:12,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:12,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:38:12,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543802278] [2024-12-02 13:38:12,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:12,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:12,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:12,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:12,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:12,019 INFO L87 Difference]: Start difference. First operand 56 states and 65 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:38:12,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:12,036 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2024-12-02 13:38:12,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:12,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2024-12-02 13:38:12,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:12,037 INFO L225 Difference]: With dead ends: 56 [2024-12-02 13:38:12,037 INFO L226 Difference]: Without dead ends: 55 [2024-12-02 13:38:12,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:12,038 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 3 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:12,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 175 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:12,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-12-02 13:38:12,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-12-02 13:38:12,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 38 states have internal predecessors, (40), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:38:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2024-12-02 13:38:12,045 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 79 [2024-12-02 13:38:12,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:12,046 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2024-12-02 13:38:12,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:38:12,046 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2024-12-02 13:38:12,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 13:38:12,047 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:12,047 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:12,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:38:12,048 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:12,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:12,048 INFO L85 PathProgramCache]: Analyzing trace with hash -651425138, now seen corresponding path program 1 times [2024-12-02 13:38:12,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:12,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754237232] [2024-12-02 13:38:12,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:12,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:12,102 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-02 13:38:12,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:12,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754237232] [2024-12-02 13:38:12,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754237232] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:12,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:38:12,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:38:12,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674995395] [2024-12-02 13:38:12,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:12,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:12,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:12,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:12,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:12,104 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:38:12,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:12,116 INFO L93 Difference]: Finished difference Result 61 states and 70 transitions. [2024-12-02 13:38:12,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:12,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 80 [2024-12-02 13:38:12,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:12,117 INFO L225 Difference]: With dead ends: 61 [2024-12-02 13:38:12,117 INFO L226 Difference]: Without dead ends: 55 [2024-12-02 13:38:12,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:38:12,118 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:12,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:12,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-12-02 13:38:12,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-12-02 13:38:12,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 38 states have (on average 1.0263157894736843) internal successors, (39), 38 states have internal predecessors, (39), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-12-02 13:38:12,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 63 transitions. [2024-12-02 13:38:12,123 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 63 transitions. Word has length 80 [2024-12-02 13:38:12,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:12,124 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 63 transitions. [2024-12-02 13:38:12,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:38:12,124 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2024-12-02 13:38:12,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 13:38:12,125 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:38:12,125 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:12,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:38:12,125 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 13:38:12,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:38:12,126 INFO L85 PathProgramCache]: Analyzing trace with hash 28633232, now seen corresponding path program 1 times [2024-12-02 13:38:12,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:38:12,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274495529] [2024-12-02 13:38:12,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:12,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:38:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-02 13:38:12,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:38:12,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274495529] [2024-12-02 13:38:12,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274495529] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:38:12,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067299526] [2024-12-02 13:38:12,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:38:12,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:12,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:38:12,178 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:38:12,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:38:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:38:12,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:38:12,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:38:12,301 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-02 13:38:12,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:38:12,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067299526] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:38:12,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:38:12,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 13:38:12,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492211619] [2024-12-02 13:38:12,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:38:12,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:38:12,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:38:12,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:38:12,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:38:12,303 INFO L87 Difference]: Start difference. First operand 55 states and 63 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:38:12,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:38:12,310 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2024-12-02 13:38:12,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:38:12,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 80 [2024-12-02 13:38:12,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:38:12,311 INFO L225 Difference]: With dead ends: 58 [2024-12-02 13:38:12,311 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 13:38:12,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:38:12,312 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:38:12,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:38:12,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 13:38:12,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 13:38:12,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:38:12,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 13:38:12,313 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80 [2024-12-02 13:38:12,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:38:12,313 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 13:38:12,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 13:38:12,314 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 13:38:12,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 13:38:12,316 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-12-02 13:38:12,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-12-02 13:38:12,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-12-02 13:38:12,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-12-02 13:38:12,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-12-02 13:38:12,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-12-02 13:38:12,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-12-02 13:38:12,317 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-12-02 13:38:12,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:38:12,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:38:12,522 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:38:12,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 13:38:12,574 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 13:38:12,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:38:12 BoogieIcfgContainer [2024-12-02 13:38:12,580 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 13:38:12,581 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 13:38:12,581 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 13:38:12,581 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 13:38:12,582 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:09" (3/4) ... [2024-12-02 13:38:12,584 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 13:38:12,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2024-12-02 13:38:12,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsFalse [2024-12-02 13:38:12,589 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2024-12-02 13:38:12,590 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsTrue [2024-12-02 13:38:12,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-12-02 13:38:12,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 13:38:12,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 13:38:12,595 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 13:38:12,687 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 13:38:12,688 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 13:38:12,688 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 13:38:12,688 INFO L158 Benchmark]: Toolchain (without parser) took 4709.97ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 89.7MB in the beginning and 96.9MB in the end (delta: -7.2MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2024-12-02 13:38:12,689 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:38:12,689 INFO L158 Benchmark]: CACSL2BoogieTranslator took 899.44ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 80.7MB in the end (delta: 9.1MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2024-12-02 13:38:12,689 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.74ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 77.8MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 13:38:12,690 INFO L158 Benchmark]: Boogie Preprocessor took 34.69ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:38:12,690 INFO L158 Benchmark]: RCFGBuilder took 403.38ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 60.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 13:38:12,690 INFO L158 Benchmark]: TraceAbstraction took 3222.60ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 59.8MB in the beginning and 102.3MB in the end (delta: -42.4MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2024-12-02 13:38:12,690 INFO L158 Benchmark]: Witness Printer took 106.69ms. Allocated memory is still 192.9MB. Free memory was 102.3MB in the beginning and 96.9MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 13:38:12,692 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 899.44ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 80.7MB in the end (delta: 9.1MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.74ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 77.8MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.69ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 403.38ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 60.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3222.60ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 59.8MB in the beginning and 102.3MB in the end (delta: -42.4MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * Witness Printer took 106.69ms. Allocated memory is still 192.9MB. Free memory was 102.3MB in the beginning and 96.9MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1594]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1594]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 81 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 2525 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1589 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 936 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 288 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 5 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 960 NumberOfCodeBlocks, 960 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 943 ConstructedInterpolants, 0 QuantifiedInterpolants, 1135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 740 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 563/573 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 13:38:12,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359837f3-7a7b-43f4-9faa-95b3bf494aae/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE