./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/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_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/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 32bit --witnessprinter.graph.data.programhash 7f4008cf19548475d4a1b90b2fc9651e21c073e156065e130bea6b81023185c5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:14:03,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:14:03,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-01 23:14:03,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:14:03,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:14:03,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:14:03,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:14:03,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:14:03,980 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:14:03,980 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:14:03,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:14:03,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:14:03,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:14:03,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:14:03,981 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:14:03,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:14:03,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:14:03,981 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 23:14:03,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:14:03,981 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 23:14:03,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:14:03,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:14:03,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:14:03,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:14:03,982 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-01 23:14:03,982 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 23:14:03,982 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 23:14:03,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:14:03,982 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:14:03,982 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:14:03,982 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:14:03,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:14:03,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:14:03,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:14:03,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:14:03,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:14:03,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:14:03,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:14:03,984 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:14:03,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:14:03,984 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_05192ce8-9952-46d7-ad2d-06b18c37da7b/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f4008cf19548475d4a1b90b2fc9651e21c073e156065e130bea6b81023185c5 [2024-12-01 23:14:04,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:14:04,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:14:04,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:14:04,237 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:14:04,237 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:14:04,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2024-12-01 23:14:06,851 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/data/f58e529f1/51ebcd3c2a734990bbf30f44955d7a2e/FLAG7df05bae4 [2024-12-01 23:14:07,065 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:14:07,066 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2024-12-01 23:14:07,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/data/f58e529f1/51ebcd3c2a734990bbf30f44955d7a2e/FLAG7df05bae4 [2024-12-01 23:14:07,423 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/data/f58e529f1/51ebcd3c2a734990bbf30f44955d7a2e [2024-12-01 23:14:07,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:14:07,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:14:07,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:14:07,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:14:07,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:14:07,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451a040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07, skipping insertion in model container [2024-12-01 23:14:07,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,451 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:14:07,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:14:07,658 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:14:07,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:14:07,721 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:14:07,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07 WrapperNode [2024-12-01 23:14:07,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:14:07,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:14:07,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:14:07,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:14:07,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,763 INFO L138 Inliner]: procedures = 28, calls = 52, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 430 [2024-12-01 23:14:07,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:14:07,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:14:07,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:14:07,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:14:07,773 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,776 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,790 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-01 23:14:07,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,799 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:14:07,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:14:07,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:14:07,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:14:07,816 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (1/1) ... [2024-12-01 23:14:07,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:14:07,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:07,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:14:07,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:14:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:14:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2024-12-01 23:14:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2024-12-01 23:14:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-12-01 23:14:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-12-01 23:14:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2024-12-01 23:14:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2024-12-01 23:14:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2024-12-01 23:14:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2024-12-01 23:14:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2024-12-01 23:14:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2024-12-01 23:14:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-01 23:14:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-01 23:14:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 23:14:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:14:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:14:07,964 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:14:07,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:14:08,429 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-12-01 23:14:08,429 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:14:08,441 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:14:08,442 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-01 23:14:08,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:08 BoogieIcfgContainer [2024-12-01 23:14:08,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:14:08,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:14:08,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:14:08,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:14:08,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:14:07" (1/3) ... [2024-12-01 23:14:08,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acdfbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:14:08, skipping insertion in model container [2024-12-01 23:14:08,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:07" (2/3) ... [2024-12-01 23:14:08,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acdfbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:14:08, skipping insertion in model container [2024-12-01 23:14:08,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:08" (3/3) ... [2024-12-01 23:14:08,450 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c [2024-12-01 23:14:08,469 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:14:08,470 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_STARTPALS_Triplicated.1.ufo.UNBOUNDED.pals.c that has 7 procedures, 194 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2024-12-01 23:14:08,515 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:14:08,525 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;@3ffc2502, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:14:08,525 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-12-01 23:14:08,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 142 states have (on average 1.5985915492957747) internal successors, (227), 154 states have internal predecessors, (227), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-01 23:14:08,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-01 23:14:08,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:08,534 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:08,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:08,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:08,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1275668139, now seen corresponding path program 1 times [2024-12-01 23:14:08,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:08,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769667261] [2024-12-01 23:14:08,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:08,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:08,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:14:08,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:08,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769667261] [2024-12-01 23:14:08,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769667261] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:08,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:08,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:14:08,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357939784] [2024-12-01 23:14:08,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:08,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:08,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:08,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:08,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:14:08,809 INFO L87 Difference]: Start difference. First operand has 194 states, 142 states have (on average 1.5985915492957747) internal successors, (227), 154 states have internal predecessors, (227), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:14:08,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:08,918 INFO L93 Difference]: Finished difference Result 404 states and 665 transitions. [2024-12-01 23:14:08,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:14:08,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-12-01 23:14:08,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:08,928 INFO L225 Difference]: With dead ends: 404 [2024-12-01 23:14:08,928 INFO L226 Difference]: Without dead ends: 212 [2024-12-01 23:14:08,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:14:08,934 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 37 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:08,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 868 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:08,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-12-01 23:14:08,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 205. [2024-12-01 23:14:08,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 152 states have (on average 1.5723684210526316) internal successors, (239), 163 states have internal predecessors, (239), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-01 23:14:08,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 315 transitions. [2024-12-01 23:14:08,983 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 315 transitions. Word has length 11 [2024-12-01 23:14:08,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:08,984 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 315 transitions. [2024-12-01 23:14:08,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:14:08,984 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 315 transitions. [2024-12-01 23:14:08,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-01 23:14:08,986 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:08,986 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:08,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 23:14:08,986 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:08,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:08,987 INFO L85 PathProgramCache]: Analyzing trace with hash 157756939, now seen corresponding path program 1 times [2024-12-01 23:14:08,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:08,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228235531] [2024-12-01 23:14:08,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:08,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:14:09,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:09,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228235531] [2024-12-01 23:14:09,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228235531] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:09,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:09,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:14:09,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140558861] [2024-12-01 23:14:09,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:09,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:09,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:09,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:09,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:14:09,116 INFO L87 Difference]: Start difference. First operand 205 states and 315 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-01 23:14:09,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:09,172 INFO L93 Difference]: Finished difference Result 433 states and 675 transitions. [2024-12-01 23:14:09,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:14:09,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-12-01 23:14:09,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:09,175 INFO L225 Difference]: With dead ends: 433 [2024-12-01 23:14:09,175 INFO L226 Difference]: Without dead ends: 240 [2024-12-01 23:14:09,176 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 [2024-12-01 23:14:09,177 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 19 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:09,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 868 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:09,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-12-01 23:14:09,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 236. [2024-12-01 23:14:09,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 178 states have (on average 1.5393258426966292) internal successors, (274), 189 states have internal predecessors, (274), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-12-01 23:14:09,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 360 transitions. [2024-12-01 23:14:09,199 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 360 transitions. Word has length 16 [2024-12-01 23:14:09,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:09,199 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 360 transitions. [2024-12-01 23:14:09,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-01 23:14:09,200 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 360 transitions. [2024-12-01 23:14:09,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-12-01 23:14:09,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:09,201 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:09,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 23:14:09,202 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:09,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:09,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1619183960, now seen corresponding path program 1 times [2024-12-01 23:14:09,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:09,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855165733] [2024-12-01 23:14:09,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:09,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:09,346 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-01 23:14:09,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:09,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855165733] [2024-12-01 23:14:09,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855165733] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:09,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39766356] [2024-12-01 23:14:09,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:09,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:09,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:09,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:09,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 23:14:09,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:09,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 23:14:09,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-01 23:14:09,517 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:09,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39766356] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:09,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:09,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-12-01 23:14:09,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188829764] [2024-12-01 23:14:09,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:09,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:14:09,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:09,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:14:09,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:09,518 INFO L87 Difference]: Start difference. First operand 236 states and 360 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-01 23:14:09,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:09,556 INFO L93 Difference]: Finished difference Result 240 states and 366 transitions. [2024-12-01 23:14:09,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:14:09,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-12-01 23:14:09,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:09,559 INFO L225 Difference]: With dead ends: 240 [2024-12-01 23:14:09,559 INFO L226 Difference]: Without dead ends: 239 [2024-12-01 23:14:09,559 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:09,560 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 19 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:09,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 830 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:09,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-12-01 23:14:09,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 235. [2024-12-01 23:14:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 178 states have (on average 1.5224719101123596) internal successors, (271), 188 states have internal predecessors, (271), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-12-01 23:14:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 357 transitions. [2024-12-01 23:14:09,580 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 357 transitions. Word has length 29 [2024-12-01 23:14:09,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:09,580 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 357 transitions. [2024-12-01 23:14:09,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-01 23:14:09,581 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 357 transitions. [2024-12-01 23:14:09,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-01 23:14:09,582 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:09,582 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:09,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 23:14:09,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:09,783 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:09,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:09,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1344905314, now seen corresponding path program 1 times [2024-12-01 23:14:09,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:09,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679274610] [2024-12-01 23:14:09,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:09,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-01 23:14:09,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:09,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679274610] [2024-12-01 23:14:09,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679274610] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:09,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:09,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:14:09,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505647249] [2024-12-01 23:14:09,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:09,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:09,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:09,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:09,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:14:09,857 INFO L87 Difference]: Start difference. First operand 235 states and 357 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-01 23:14:09,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:09,886 INFO L93 Difference]: Finished difference Result 239 states and 363 transitions. [2024-12-01 23:14:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:14:09,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2024-12-01 23:14:09,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:09,889 INFO L225 Difference]: With dead ends: 239 [2024-12-01 23:14:09,889 INFO L226 Difference]: Without dead ends: 238 [2024-12-01 23:14:09,889 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 [2024-12-01 23:14:09,890 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 18 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:09,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 832 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:09,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-12-01 23:14:09,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 205. [2024-12-01 23:14:09,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 154 states have (on average 1.525974025974026) internal successors, (235), 163 states have internal predecessors, (235), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-12-01 23:14:09,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 311 transitions. [2024-12-01 23:14:09,905 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 311 transitions. Word has length 30 [2024-12-01 23:14:09,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:09,905 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 311 transitions. [2024-12-01 23:14:09,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-01 23:14:09,906 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 311 transitions. [2024-12-01 23:14:09,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-12-01 23:14:09,909 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:09,909 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:09,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 23:14:09,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:09,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:09,910 INFO L85 PathProgramCache]: Analyzing trace with hash -758314162, now seen corresponding path program 1 times [2024-12-01 23:14:09,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:09,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503479392] [2024-12-01 23:14:09,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:09,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-01 23:14:10,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:10,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503479392] [2024-12-01 23:14:10,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503479392] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:10,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43852658] [2024-12-01 23:14:10,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:10,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:10,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:10,103 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:10,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 23:14:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:10,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:10,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:10,312 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-01 23:14:10,312 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:10,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43852658] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:10,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:10,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-01 23:14:10,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126220559] [2024-12-01 23:14:10,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:10,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:10,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:10,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:10,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:10,314 INFO L87 Difference]: Start difference. First operand 205 states and 311 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:10,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:10,371 INFO L93 Difference]: Finished difference Result 357 states and 550 transitions. [2024-12-01 23:14:10,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:14:10,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 91 [2024-12-01 23:14:10,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:10,373 INFO L225 Difference]: With dead ends: 357 [2024-12-01 23:14:10,374 INFO L226 Difference]: Without dead ends: 212 [2024-12-01 23:14:10,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:10,375 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 10 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:10,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 838 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:10,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-12-01 23:14:10,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2024-12-01 23:14:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 159 states have (on average 1.528301886792453) internal successors, (243), 169 states have internal predecessors, (243), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-12-01 23:14:10,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 321 transitions. [2024-12-01 23:14:10,392 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 321 transitions. Word has length 91 [2024-12-01 23:14:10,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:10,392 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 321 transitions. [2024-12-01 23:14:10,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:10,392 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 321 transitions. [2024-12-01 23:14:10,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-01 23:14:10,394 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:10,394 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:10,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 23:14:10,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:10,595 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:10,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:10,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1287430442, now seen corresponding path program 1 times [2024-12-01 23:14:10,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:10,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816785482] [2024-12-01 23:14:10,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:10,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:10,783 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-01 23:14:10,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:10,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816785482] [2024-12-01 23:14:10,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816785482] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:10,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669604700] [2024-12-01 23:14:10,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:10,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:10,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:10,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:10,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 23:14:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:10,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:10,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:11,007 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-12-01 23:14:11,008 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:11,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669604700] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:11,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:11,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-01 23:14:11,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831012974] [2024-12-01 23:14:11,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:11,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:11,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:11,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:11,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:11,010 INFO L87 Difference]: Start difference. First operand 212 states and 321 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:11,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:11,077 INFO L93 Difference]: Finished difference Result 371 states and 569 transitions. [2024-12-01 23:14:11,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:14:11,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2024-12-01 23:14:11,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:11,080 INFO L225 Difference]: With dead ends: 371 [2024-12-01 23:14:11,080 INFO L226 Difference]: Without dead ends: 219 [2024-12-01 23:14:11,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:11,082 INFO L435 NwaCegarLoop]: 281 mSDtfsCounter, 8 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:11,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 835 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:11,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-12-01 23:14:11,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-12-01 23:14:11,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 164 states have (on average 1.5304878048780488) internal successors, (251), 175 states have internal predecessors, (251), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-12-01 23:14:11,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 331 transitions. [2024-12-01 23:14:11,099 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 331 transitions. Word has length 93 [2024-12-01 23:14:11,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:11,099 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 331 transitions. [2024-12-01 23:14:11,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:11,100 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 331 transitions. [2024-12-01 23:14:11,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-01 23:14:11,101 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:11,101 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:11,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 23:14:11,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-01 23:14:11,302 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:11,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:11,302 INFO L85 PathProgramCache]: Analyzing trace with hash 2135827153, now seen corresponding path program 1 times [2024-12-01 23:14:11,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:11,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443983808] [2024-12-01 23:14:11,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:11,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-12-01 23:14:11,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:11,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443983808] [2024-12-01 23:14:11,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443983808] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:11,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918995462] [2024-12-01 23:14:11,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:11,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:11,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:11,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:11,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-01 23:14:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:11,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:11,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-01 23:14:11,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:11,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918995462] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:11,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:11,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-01 23:14:11,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574314389] [2024-12-01 23:14:11,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:11,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:11,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:11,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:11,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:11,696 INFO L87 Difference]: Start difference. First operand 219 states and 331 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:11,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:11,814 INFO L93 Difference]: Finished difference Result 396 states and 619 transitions. [2024-12-01 23:14:11,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:14:11,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-12-01 23:14:11,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:11,818 INFO L225 Difference]: With dead ends: 396 [2024-12-01 23:14:11,818 INFO L226 Difference]: Without dead ends: 237 [2024-12-01 23:14:11,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:11,819 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 39 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:11,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 794 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:14:11,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-12-01 23:14:11,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 233. [2024-12-01 23:14:11,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 176 states have (on average 1.5454545454545454) internal successors, (272), 187 states have internal predecessors, (272), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-12-01 23:14:11,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 354 transitions. [2024-12-01 23:14:11,838 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 354 transitions. Word has length 94 [2024-12-01 23:14:11,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:11,839 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 354 transitions. [2024-12-01 23:14:11,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:11,839 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 354 transitions. [2024-12-01 23:14:11,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-12-01 23:14:11,841 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:11,841 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:11,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-01 23:14:12,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:12,042 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:12,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:12,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1689591044, now seen corresponding path program 1 times [2024-12-01 23:14:12,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:12,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523097655] [2024-12-01 23:14:12,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:12,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-12-01 23:14:12,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:12,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523097655] [2024-12-01 23:14:12,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523097655] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:12,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167363358] [2024-12-01 23:14:12,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:12,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:12,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:12,229 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:12,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-01 23:14:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:12,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:12,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:12,417 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-01 23:14:12,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:12,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167363358] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:12,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:12,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-01 23:14:12,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743533194] [2024-12-01 23:14:12,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:12,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:12,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:12,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:12,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:12,419 INFO L87 Difference]: Start difference. First operand 233 states and 354 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:12,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:12,487 INFO L93 Difference]: Finished difference Result 471 states and 731 transitions. [2024-12-01 23:14:12,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:14:12,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2024-12-01 23:14:12,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:12,490 INFO L225 Difference]: With dead ends: 471 [2024-12-01 23:14:12,490 INFO L226 Difference]: Without dead ends: 257 [2024-12-01 23:14:12,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:12,492 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 21 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:12,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 814 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:12,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-12-01 23:14:12,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 257. [2024-12-01 23:14:12,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 196 states have (on average 1.5612244897959184) internal successors, (306), 207 states have internal predecessors, (306), 43 states have call successors, (43), 12 states have call predecessors, (43), 12 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-12-01 23:14:12,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 392 transitions. [2024-12-01 23:14:12,504 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 392 transitions. Word has length 97 [2024-12-01 23:14:12,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:12,505 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 392 transitions. [2024-12-01 23:14:12,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:12,505 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 392 transitions. [2024-12-01 23:14:12,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-01 23:14:12,507 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:12,507 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:12,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-01 23:14:12,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-01 23:14:12,707 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:12,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:12,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1975556510, now seen corresponding path program 1 times [2024-12-01 23:14:12,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:12,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205537648] [2024-12-01 23:14:12,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:12,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:12,833 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-01 23:14:12,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:12,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205537648] [2024-12-01 23:14:12,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205537648] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:12,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748454657] [2024-12-01 23:14:12,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:12,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:12,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:12,835 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:12,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-01 23:14:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:12,984 INFO L256 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:12,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-01 23:14:13,015 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:13,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748454657] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:13,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:13,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-12-01 23:14:13,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159772328] [2024-12-01 23:14:13,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:13,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:13,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:13,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:13,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:13,016 INFO L87 Difference]: Start difference. First operand 257 states and 392 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:13,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:13,086 INFO L93 Difference]: Finished difference Result 515 states and 796 transitions. [2024-12-01 23:14:13,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:14:13,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2024-12-01 23:14:13,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:13,089 INFO L225 Difference]: With dead ends: 515 [2024-12-01 23:14:13,089 INFO L226 Difference]: Without dead ends: 277 [2024-12-01 23:14:13,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:13,091 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 19 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:13,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 801 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:13,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-12-01 23:14:13,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 277. [2024-12-01 23:14:13,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 212 states have (on average 1.5660377358490567) internal successors, (332), 223 states have internal predecessors, (332), 45 states have call successors, (45), 14 states have call predecessors, (45), 14 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-01 23:14:13,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 422 transitions. [2024-12-01 23:14:13,109 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 422 transitions. Word has length 99 [2024-12-01 23:14:13,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:13,109 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 422 transitions. [2024-12-01 23:14:13,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:13,109 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 422 transitions. [2024-12-01 23:14:13,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-12-01 23:14:13,111 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:13,112 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:13,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-12-01 23:14:13,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:13,312 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:13,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:13,312 INFO L85 PathProgramCache]: Analyzing trace with hash 273679520, now seen corresponding path program 1 times [2024-12-01 23:14:13,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:13,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548796639] [2024-12-01 23:14:13,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:13,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:13,429 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-01 23:14:13,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:13,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548796639] [2024-12-01 23:14:13,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548796639] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:13,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850093170] [2024-12-01 23:14:13,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:13,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:13,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:13,432 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:13,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-01 23:14:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:13,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:13,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:13,612 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-01 23:14:13,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:13,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850093170] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:13,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:13,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-01 23:14:13,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478857317] [2024-12-01 23:14:13,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:13,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:13,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:13,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:13,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:13,614 INFO L87 Difference]: Start difference. First operand 277 states and 422 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:13,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:13,647 INFO L93 Difference]: Finished difference Result 285 states and 437 transitions. [2024-12-01 23:14:13,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:14:13,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-12-01 23:14:13,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:13,650 INFO L225 Difference]: With dead ends: 285 [2024-12-01 23:14:13,650 INFO L226 Difference]: Without dead ends: 284 [2024-12-01 23:14:13,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:13,651 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 12 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:13,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 821 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:13,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-12-01 23:14:13,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 276. [2024-12-01 23:14:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 212 states have (on average 1.5613207547169812) internal successors, (331), 222 states have internal predecessors, (331), 45 states have call successors, (45), 14 states have call predecessors, (45), 14 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-12-01 23:14:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 421 transitions. [2024-12-01 23:14:13,672 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 421 transitions. Word has length 100 [2024-12-01 23:14:13,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:13,673 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 421 transitions. [2024-12-01 23:14:13,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:13,673 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 421 transitions. [2024-12-01 23:14:13,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-01 23:14:13,675 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:13,675 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:13,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-01 23:14:13,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-01 23:14:13,876 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:13,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:13,876 INFO L85 PathProgramCache]: Analyzing trace with hash -105869156, now seen corresponding path program 1 times [2024-12-01 23:14:13,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:13,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545761216] [2024-12-01 23:14:13,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:13,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-01 23:14:13,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:13,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545761216] [2024-12-01 23:14:13,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545761216] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:13,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116582442] [2024-12-01 23:14:13,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:13,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:13,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:13,961 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:13,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-01 23:14:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:14,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:14,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:14,135 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-01 23:14:14,136 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:14,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116582442] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:14,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:14,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-01 23:14:14,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808270822] [2024-12-01 23:14:14,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:14,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:14,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:14,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:14,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:14,137 INFO L87 Difference]: Start difference. First operand 276 states and 421 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:14,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:14,172 INFO L93 Difference]: Finished difference Result 472 states and 724 transitions. [2024-12-01 23:14:14,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:14:14,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-12-01 23:14:14,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:14,174 INFO L225 Difference]: With dead ends: 472 [2024-12-01 23:14:14,174 INFO L226 Difference]: Without dead ends: 286 [2024-12-01 23:14:14,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:14,175 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 11 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:14,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 852 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:14,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-12-01 23:14:14,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2024-12-01 23:14:14,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 221 states have (on average 1.5565610859728507) internal successors, (344), 230 states have internal predecessors, (344), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-01 23:14:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 438 transitions. [2024-12-01 23:14:14,187 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 438 transitions. Word has length 101 [2024-12-01 23:14:14,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:14,187 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 438 transitions. [2024-12-01 23:14:14,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-01 23:14:14,187 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 438 transitions. [2024-12-01 23:14:14,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-01 23:14:14,189 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:14,189 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:14,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-01 23:14:14,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-01 23:14:14,390 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:14,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:14,390 INFO L85 PathProgramCache]: Analyzing trace with hash 884288430, now seen corresponding path program 1 times [2024-12-01 23:14:14,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:14,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221759491] [2024-12-01 23:14:14,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:14,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:14,504 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-01 23:14:14,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:14,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221759491] [2024-12-01 23:14:14,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221759491] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:14,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514063194] [2024-12-01 23:14:14,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:14,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:14,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:14,506 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:14,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-01 23:14:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:14,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:14,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:14,692 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-01 23:14:14,693 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:14,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514063194] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:14,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:14,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-01 23:14:14,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666972919] [2024-12-01 23:14:14,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:14,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:14,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:14,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:14,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:14,694 INFO L87 Difference]: Start difference. First operand 286 states and 438 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-12-01 23:14:14,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:14,730 INFO L93 Difference]: Finished difference Result 297 states and 457 transitions. [2024-12-01 23:14:14,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:14:14,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 108 [2024-12-01 23:14:14,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:14,733 INFO L225 Difference]: With dead ends: 297 [2024-12-01 23:14:14,733 INFO L226 Difference]: Without dead ends: 296 [2024-12-01 23:14:14,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:14,734 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 10 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:14,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 820 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:14,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-12-01 23:14:14,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 287. [2024-12-01 23:14:14,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 222 states have (on average 1.554054054054054) internal successors, (345), 231 states have internal predecessors, (345), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-01 23:14:14,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 439 transitions. [2024-12-01 23:14:14,747 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 439 transitions. Word has length 108 [2024-12-01 23:14:14,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:14,748 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 439 transitions. [2024-12-01 23:14:14,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-12-01 23:14:14,748 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 439 transitions. [2024-12-01 23:14:14,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-01 23:14:14,750 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:14,750 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:14,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-01 23:14:14,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:14,951 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:14,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:14,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1643137882, now seen corresponding path program 1 times [2024-12-01 23:14:14,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:14,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653356501] [2024-12-01 23:14:14,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:14,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:15,071 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-01 23:14:15,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:15,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653356501] [2024-12-01 23:14:15,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653356501] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:15,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279645751] [2024-12-01 23:14:15,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:15,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:15,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:15,074 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:15,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-01 23:14:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:15,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:15,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:15,260 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-01 23:14:15,260 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:15,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279645751] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:15,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:15,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-01 23:14:15,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160686067] [2024-12-01 23:14:15,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:15,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:15,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:15,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:15,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:15,261 INFO L87 Difference]: Start difference. First operand 287 states and 439 transitions. Second operand has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-12-01 23:14:15,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:15,296 INFO L93 Difference]: Finished difference Result 289 states and 441 transitions. [2024-12-01 23:14:15,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:14:15,297 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 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 109 [2024-12-01 23:14:15,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:15,299 INFO L225 Difference]: With dead ends: 289 [2024-12-01 23:14:15,299 INFO L226 Difference]: Without dead ends: 288 [2024-12-01 23:14:15,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:15,300 INFO L435 NwaCegarLoop]: 299 mSDtfsCounter, 9 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:15,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 863 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:15,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-12-01 23:14:15,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2024-12-01 23:14:15,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 223 states have (on average 1.5515695067264574) internal successors, (346), 232 states have internal predecessors, (346), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-01 23:14:15,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 440 transitions. [2024-12-01 23:14:15,312 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 440 transitions. Word has length 109 [2024-12-01 23:14:15,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:15,312 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 440 transitions. [2024-12-01 23:14:15,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-12-01 23:14:15,313 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 440 transitions. [2024-12-01 23:14:15,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-01 23:14:15,314 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:15,315 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:15,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-01 23:14:15,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-01 23:14:15,515 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:15,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:15,516 INFO L85 PathProgramCache]: Analyzing trace with hash -221403534, now seen corresponding path program 1 times [2024-12-01 23:14:15,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:15,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486800000] [2024-12-01 23:14:15,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:15,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-01 23:14:15,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:15,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486800000] [2024-12-01 23:14:15,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486800000] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:15,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500565784] [2024-12-01 23:14:15,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:15,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:15,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:15,626 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:15,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-01 23:14:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:15,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 23:14:15,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:15,824 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-01 23:14:15,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:15,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500565784] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:15,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:15,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-01 23:14:15,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077158499] [2024-12-01 23:14:15,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:15,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:14:15,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:15,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:14:15,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:15,825 INFO L87 Difference]: Start difference. First operand 288 states and 440 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-12-01 23:14:15,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:15,867 INFO L93 Difference]: Finished difference Result 293 states and 450 transitions. [2024-12-01 23:14:15,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:14:15,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 110 [2024-12-01 23:14:15,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:15,869 INFO L225 Difference]: With dead ends: 293 [2024-12-01 23:14:15,870 INFO L226 Difference]: Without dead ends: 292 [2024-12-01 23:14:15,870 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:15,871 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 12 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:15,871 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1079 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:15,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-12-01 23:14:15,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 287. [2024-12-01 23:14:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 223 states have (on average 1.547085201793722) internal successors, (345), 231 states have internal predecessors, (345), 47 states have call successors, (47), 14 states have call predecessors, (47), 14 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-12-01 23:14:15,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 439 transitions. [2024-12-01 23:14:15,885 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 439 transitions. Word has length 110 [2024-12-01 23:14:15,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:15,886 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 439 transitions. [2024-12-01 23:14:15,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-12-01 23:14:15,886 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 439 transitions. [2024-12-01 23:14:15,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-01 23:14:15,888 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:15,888 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:15,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-01 23:14:16,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-01 23:14:16,089 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:16,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1726425366, now seen corresponding path program 1 times [2024-12-01 23:14:16,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:16,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884204172] [2024-12-01 23:14:16,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:16,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:16,189 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-01 23:14:16,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:16,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884204172] [2024-12-01 23:14:16,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884204172] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:16,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112296928] [2024-12-01 23:14:16,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:16,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:16,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:16,192 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:16,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-01 23:14:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:16,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 23:14:16,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:16,395 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-01 23:14:16,395 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:16,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112296928] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:16,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:16,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-12-01 23:14:16,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897987212] [2024-12-01 23:14:16,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:16,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:14:16,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:16,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:14:16,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:14:16,397 INFO L87 Difference]: Start difference. First operand 287 states and 439 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-01 23:14:16,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:16,456 INFO L93 Difference]: Finished difference Result 491 states and 755 transitions. [2024-12-01 23:14:16,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:14:16,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2024-12-01 23:14:16,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:16,459 INFO L225 Difference]: With dead ends: 491 [2024-12-01 23:14:16,459 INFO L226 Difference]: Without dead ends: 294 [2024-12-01 23:14:16,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:14:16,460 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 20 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:16,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1412 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:16,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-12-01 23:14:16,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 290. [2024-12-01 23:14:16,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 226 states have (on average 1.5530973451327434) internal successors, (351), 233 states have internal predecessors, (351), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-01 23:14:16,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 447 transitions. [2024-12-01 23:14:16,477 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 447 transitions. Word has length 111 [2024-12-01 23:14:16,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:16,478 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 447 transitions. [2024-12-01 23:14:16,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-01 23:14:16,478 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 447 transitions. [2024-12-01 23:14:16,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-01 23:14:16,480 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:16,480 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:16,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-01 23:14:16,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:16,681 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:16,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:16,681 INFO L85 PathProgramCache]: Analyzing trace with hash -501864964, now seen corresponding path program 1 times [2024-12-01 23:14:16,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:16,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365721181] [2024-12-01 23:14:16,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:16,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:16,778 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-01 23:14:16,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:16,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365721181] [2024-12-01 23:14:16,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365721181] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:16,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526666472] [2024-12-01 23:14:16,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:16,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:16,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:16,781 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:16,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-01 23:14:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:16,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:16,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:16,973 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-01 23:14:16,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:16,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526666472] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:16,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:16,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-01 23:14:16,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820037996] [2024-12-01 23:14:16,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:16,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:16,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:16,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:16,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:16,974 INFO L87 Difference]: Start difference. First operand 290 states and 447 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-01 23:14:17,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:17,007 INFO L93 Difference]: Finished difference Result 299 states and 462 transitions. [2024-12-01 23:14:17,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:14:17,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-12-01 23:14:17,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:17,009 INFO L225 Difference]: With dead ends: 299 [2024-12-01 23:14:17,009 INFO L226 Difference]: Without dead ends: 298 [2024-12-01 23:14:17,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:17,010 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 8 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:17,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 818 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:17,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-12-01 23:14:17,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 291. [2024-12-01 23:14:17,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 227 states have (on average 1.550660792951542) internal successors, (352), 234 states have internal predecessors, (352), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-01 23:14:17,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 448 transitions. [2024-12-01 23:14:17,018 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 448 transitions. Word has length 116 [2024-12-01 23:14:17,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:17,019 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 448 transitions. [2024-12-01 23:14:17,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-01 23:14:17,019 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 448 transitions. [2024-12-01 23:14:17,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-01 23:14:17,020 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:17,020 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:17,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-01 23:14:17,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:17,221 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:17,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:17,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1622055640, now seen corresponding path program 1 times [2024-12-01 23:14:17,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:17,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104455588] [2024-12-01 23:14:17,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:17,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:17,319 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-01 23:14:17,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:17,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104455588] [2024-12-01 23:14:17,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104455588] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:17,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212129611] [2024-12-01 23:14:17,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:17,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:17,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:17,321 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:17,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-01 23:14:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:17,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-01 23:14:17,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-01 23:14:17,507 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:17,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212129611] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:17,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:17,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-12-01 23:14:17,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553979624] [2024-12-01 23:14:17,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:17,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:17,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:17,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:17,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:17,509 INFO L87 Difference]: Start difference. First operand 291 states and 448 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-01 23:14:17,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:17,540 INFO L93 Difference]: Finished difference Result 294 states and 451 transitions. [2024-12-01 23:14:17,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:14:17,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2024-12-01 23:14:17,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:17,542 INFO L225 Difference]: With dead ends: 294 [2024-12-01 23:14:17,542 INFO L226 Difference]: Without dead ends: 293 [2024-12-01 23:14:17,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:14:17,543 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 7 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:17,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 857 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:17,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-12-01 23:14:17,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 292. [2024-12-01 23:14:17,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 228 states have (on average 1.5482456140350878) internal successors, (353), 235 states have internal predecessors, (353), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-01 23:14:17,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 449 transitions. [2024-12-01 23:14:17,550 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 449 transitions. Word has length 117 [2024-12-01 23:14:17,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:17,550 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 449 transitions. [2024-12-01 23:14:17,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-01 23:14:17,551 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 449 transitions. [2024-12-01 23:14:17,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 23:14:17,552 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:17,552 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:17,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-01 23:14:17,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-01 23:14:17,752 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:17,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:17,752 INFO L85 PathProgramCache]: Analyzing trace with hash 883627712, now seen corresponding path program 1 times [2024-12-01 23:14:17,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:17,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693185858] [2024-12-01 23:14:17,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:17,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-01 23:14:17,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:17,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693185858] [2024-12-01 23:14:17,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693185858] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:17,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109653232] [2024-12-01 23:14:17,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:17,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:17,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:17,849 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:17,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-01 23:14:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:18,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 23:14:18,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-01 23:14:18,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:18,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109653232] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:18,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:18,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-01 23:14:18,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670795100] [2024-12-01 23:14:18,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:18,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:14:18,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:18,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:14:18,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:18,044 INFO L87 Difference]: Start difference. First operand 292 states and 449 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-01 23:14:18,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:18,088 INFO L93 Difference]: Finished difference Result 302 states and 465 transitions. [2024-12-01 23:14:18,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:14:18,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2024-12-01 23:14:18,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:18,091 INFO L225 Difference]: With dead ends: 302 [2024-12-01 23:14:18,091 INFO L226 Difference]: Without dead ends: 301 [2024-12-01 23:14:18,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:18,092 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 12 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:18,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1080 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:18,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-12-01 23:14:18,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 293. [2024-12-01 23:14:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 229 states have (on average 1.5458515283842795) internal successors, (354), 236 states have internal predecessors, (354), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-01 23:14:18,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 450 transitions. [2024-12-01 23:14:18,105 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 450 transitions. Word has length 118 [2024-12-01 23:14:18,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:18,106 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 450 transitions. [2024-12-01 23:14:18,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-01 23:14:18,106 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 450 transitions. [2024-12-01 23:14:18,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-01 23:14:18,108 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:18,108 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:18,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-01 23:14:18,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-01 23:14:18,309 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:18,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:18,309 INFO L85 PathProgramCache]: Analyzing trace with hash 695835840, now seen corresponding path program 1 times [2024-12-01 23:14:18,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:18,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837746840] [2024-12-01 23:14:18,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:18,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-01 23:14:18,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:18,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837746840] [2024-12-01 23:14:18,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837746840] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:18,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749946280] [2024-12-01 23:14:18,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:18,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:18,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:18,403 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:18,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-01 23:14:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:18,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 23:14:18,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:18,605 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-01 23:14:18,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:18,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749946280] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:18,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:18,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-01 23:14:18,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000687466] [2024-12-01 23:14:18,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:18,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:14:18,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:18,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:14:18,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:18,606 INFO L87 Difference]: Start difference. First operand 293 states and 450 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-01 23:14:18,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:18,649 INFO L93 Difference]: Finished difference Result 299 states and 462 transitions. [2024-12-01 23:14:18,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:14:18,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2024-12-01 23:14:18,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:18,652 INFO L225 Difference]: With dead ends: 299 [2024-12-01 23:14:18,652 INFO L226 Difference]: Without dead ends: 298 [2024-12-01 23:14:18,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:14:18,653 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 10 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:18,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1077 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:18,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-12-01 23:14:18,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 291. [2024-12-01 23:14:18,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 228 states have (on average 1.543859649122807) internal successors, (352), 234 states have internal predecessors, (352), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-01 23:14:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 448 transitions. [2024-12-01 23:14:18,665 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 448 transitions. Word has length 118 [2024-12-01 23:14:18,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:18,666 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 448 transitions. [2024-12-01 23:14:18,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-01 23:14:18,666 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 448 transitions. [2024-12-01 23:14:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-01 23:14:18,668 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:18,668 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:18,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-12-01 23:14:18,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:18,868 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:18,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:18,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1622655636, now seen corresponding path program 1 times [2024-12-01 23:14:18,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:18,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669258957] [2024-12-01 23:14:18,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:18,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-01 23:14:18,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:18,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669258957] [2024-12-01 23:14:18,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669258957] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:18,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805569890] [2024-12-01 23:14:18,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:18,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:18,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:18,970 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:18,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-01 23:14:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:19,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 23:14:19,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:19,172 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-01 23:14:19,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:19,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805569890] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:19,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:19,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-12-01 23:14:19,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308233154] [2024-12-01 23:14:19,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:19,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:14:19,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:19,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:14:19,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:14:19,174 INFO L87 Difference]: Start difference. First operand 291 states and 448 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-01 23:14:19,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:19,226 INFO L93 Difference]: Finished difference Result 505 states and 779 transitions. [2024-12-01 23:14:19,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:14:19,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2024-12-01 23:14:19,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:19,229 INFO L225 Difference]: With dead ends: 505 [2024-12-01 23:14:19,229 INFO L226 Difference]: Without dead ends: 304 [2024-12-01 23:14:19,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:14:19,230 INFO L435 NwaCegarLoop]: 290 mSDtfsCounter, 16 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:19,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1397 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:19,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-12-01 23:14:19,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 296. [2024-12-01 23:14:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 232 states have (on average 1.5387931034482758) internal successors, (357), 238 states have internal predecessors, (357), 49 states have call successors, (49), 14 states have call predecessors, (49), 14 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-12-01 23:14:19,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 455 transitions. [2024-12-01 23:14:19,241 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 455 transitions. Word has length 119 [2024-12-01 23:14:19,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:19,242 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 455 transitions. [2024-12-01 23:14:19,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-01 23:14:19,242 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 455 transitions. [2024-12-01 23:14:19,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-01 23:14:19,244 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:19,244 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:19,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-01 23:14:19,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:19,444 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:19,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:19,445 INFO L85 PathProgramCache]: Analyzing trace with hash 96074900, now seen corresponding path program 1 times [2024-12-01 23:14:19,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:19,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309090683] [2024-12-01 23:14:19,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:19,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:19,538 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-01 23:14:19,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:19,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309090683] [2024-12-01 23:14:19,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309090683] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:19,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441286476] [2024-12-01 23:14:19,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:19,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:19,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:19,541 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:19,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-01 23:14:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:19,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 23:14:19,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-01 23:14:19,723 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:19,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441286476] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:19,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:19,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-12-01 23:14:19,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179804966] [2024-12-01 23:14:19,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:19,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:14:19,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:19,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:14:19,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:14:19,724 INFO L87 Difference]: Start difference. First operand 296 states and 455 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-01 23:14:19,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:19,775 INFO L93 Difference]: Finished difference Result 307 states and 470 transitions. [2024-12-01 23:14:19,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:14:19,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2024-12-01 23:14:19,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:19,778 INFO L225 Difference]: With dead ends: 307 [2024-12-01 23:14:19,778 INFO L226 Difference]: Without dead ends: 306 [2024-12-01 23:14:19,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-12-01 23:14:19,779 INFO L435 NwaCegarLoop]: 287 mSDtfsCounter, 18 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:19,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1385 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:19,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-12-01 23:14:19,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 293. [2024-12-01 23:14:19,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 230 states have (on average 1.5391304347826087) internal successors, (354), 236 states have internal predecessors, (354), 48 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-12-01 23:14:19,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 450 transitions. [2024-12-01 23:14:19,791 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 450 transitions. Word has length 119 [2024-12-01 23:14:19,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:19,792 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 450 transitions. [2024-12-01 23:14:19,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-01 23:14:19,792 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 450 transitions. [2024-12-01 23:14:19,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-01 23:14:19,794 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:19,794 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:19,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-01 23:14:19,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-12-01 23:14:19,995 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-01 23:14:19,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:19,995 INFO L85 PathProgramCache]: Analyzing trace with hash -260987568, now seen corresponding path program 1 times [2024-12-01 23:14:19,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:19,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362659102] [2024-12-01 23:14:19,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:19,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:20,087 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-01 23:14:20,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:20,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362659102] [2024-12-01 23:14:20,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362659102] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 23:14:20,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386424630] [2024-12-01 23:14:20,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:20,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:14:20,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:20,090 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:14:20,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-12-01 23:14:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:20,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-01 23:14:20,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:14:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-12-01 23:14:20,304 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:14:20,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386424630] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:20,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 23:14:20,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2024-12-01 23:14:20,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910899169] [2024-12-01 23:14:20,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:20,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 23:14:20,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:20,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 23:14:20,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:14:20,306 INFO L87 Difference]: Start difference. First operand 293 states and 450 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-12-01 23:14:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:20,360 INFO L93 Difference]: Finished difference Result 307 states and 475 transitions. [2024-12-01 23:14:20,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:14:20,360 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 121 [2024-12-01 23:14:20,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:20,361 INFO L225 Difference]: With dead ends: 307 [2024-12-01 23:14:20,361 INFO L226 Difference]: Without dead ends: 0 [2024-12-01 23:14:20,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-12-01 23:14:20,363 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 30 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:20,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1394 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:14:20,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-01 23:14:20,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-01 23:14:20,364 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) [2024-12-01 23:14:20,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-01 23:14:20,365 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2024-12-01 23:14:20,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:20,365 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-01 23:14:20,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-12-01 23:14:20,365 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-01 23:14:20,365 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-01 23:14:20,367 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-12-01 23:14:20,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-12-01 23:14:20,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-12-01 23:14:20,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-12-01 23:14:20,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-12-01 23:14:20,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-12-01 23:14:20,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-12-01 23:14:20,368 INFO L782 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-12-01 23:14:20,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-12-01 23:14:20,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-01 23:14:20,571 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:20,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-01 23:14:20,832 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 23:14:20,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:14:20 BoogieIcfgContainer [2024-12-01 23:14:20,844 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 23:14:20,844 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 23:14:20,844 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 23:14:20,845 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 23:14:20,845 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:08" (3/4) ... [2024-12-01 23:14:20,847 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-01 23:14:20,852 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_int8 [2024-12-01 23:14:20,852 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_bool [2024-12-01 23:14:20,852 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2024-12-01 23:14:20,853 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure add_history_type [2024-12-01 23:14:20,853 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-01 23:14:20,853 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_history_bool [2024-12-01 23:14:20,861 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-12-01 23:14:20,861 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-12-01 23:14:20,862 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-01 23:14:20,863 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-01 23:14:20,891 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 < (var + 2147483649)) && ((\old(history_id) != 0) || (history_id == 0))) [2024-12-01 23:14:20,932 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((0 < (var + 2147483649)) && ((\old(history_id) != 0) || (history_id == 0))) [2024-12-01 23:14:20,970 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-01 23:14:20,970 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-01 23:14:20,970 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 23:14:20,971 INFO L158 Benchmark]: Toolchain (without parser) took 13545.17ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 117.0MB in the beginning and 196.0MB in the end (delta: -79.0MB). Peak memory consumption was 94.3MB. Max. memory is 16.1GB. [2024-12-01 23:14:20,971 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:14:20,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.77ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 100.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-01 23:14:20,972 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.07ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 97.3MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:14:20,972 INFO L158 Benchmark]: Boogie Preprocessor took 48.98ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 93.8MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 23:14:20,972 INFO L158 Benchmark]: RCFGBuilder took 628.25ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 55.8MB in the end (delta: 38.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-01 23:14:20,972 INFO L158 Benchmark]: TraceAbstraction took 12399.85ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 55.3MB in the beginning and 204.1MB in the end (delta: -148.8MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2024-12-01 23:14:20,973 INFO L158 Benchmark]: Witness Printer took 125.91ms. Allocated memory is still 318.8MB. Free memory was 204.1MB in the beginning and 196.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 23:14:20,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.77ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 100.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.07ms. Allocated memory is still 142.6MB. Free memory was 100.4MB in the beginning and 97.3MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.98ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 93.8MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 628.25ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 55.8MB in the end (delta: 38.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12399.85ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 55.3MB in the beginning and 204.1MB in the end (delta: -148.8MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * Witness Printer took 125.91ms. Allocated memory is still 318.8MB. Free memory was 204.1MB in the beginning and 196.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: 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 7 procedures, 194 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 12.1s, OverallIterations: 22, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 400 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 365 mSDsluCounter, 21335 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15101 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 977 IncrementalHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 6234 mSDtfsCounter, 977 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2085 GetRequests, 1945 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=20, InterpolantAutomatonStates: 107, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 122 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 3997 NumberOfCodeBlocks, 3997 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 3956 ConstructedInterpolants, 0 QuantifiedInterpolants, 4576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 10605 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 41 InterpolantComputations, 22 PerfectInterpolantSequences, 1814/1875 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 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: ((0 < (var + 2147483649)) && ((\old(history_id) != 0) || (history_id == 0))) RESULT: Ultimate proved your program to be correct! [2024-12-01 23:14:20,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05192ce8-9952-46d7-ad2d-06b18c37da7b/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