./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_11_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/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_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_11_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 25919008ec47e036bdb16cf99a5f9ace8b82ff13fb1eb4a07d3b880ae7a1eaf1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:36:18,877 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:36:18,933 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 10:36:18,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:36:18,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:36:18,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:36:18,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:36:18,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:36:18,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:36:18,959 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:36:18,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:36:18,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:36:18,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:36:18,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:36:18,960 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:36:18,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:36:18,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:36:18,960 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:36:18,960 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:36:18,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:36:18,961 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:36:18,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:36:18,961 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 10:36:18,961 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:36:18,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:36:18,961 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:36:18,961 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:36:18,961 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:36:18,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:36:18,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:36:18,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:36:18,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:36:18,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:36:18,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:36:18,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:36:18,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:36:18,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:36:18,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:36:18,962 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:36:18,963 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:36:18,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:36:18,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:36:18,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:36:18,963 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:36:18,963 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:36:18,963 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:36:18,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:36:18,963 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_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25919008ec47e036bdb16cf99a5f9ace8b82ff13fb1eb4a07d3b880ae7a1eaf1 [2024-12-02 10:36:19,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:36:19,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:36:19,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:36:19,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:36:19,179 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:36:19,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_11_good.i [2024-12-02 10:36:21,841 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/data/26ca8fbf4/9b9ce56a87394e919ddff8544529e254/FLAG9305b0915 [2024-12-02 10:36:22,165 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:36:22,165 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_11_good.i [2024-12-02 10:36:22,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/data/26ca8fbf4/9b9ce56a87394e919ddff8544529e254/FLAG9305b0915 [2024-12-02 10:36:22,406 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/data/26ca8fbf4/9b9ce56a87394e919ddff8544529e254 [2024-12-02 10:36:22,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:36:22,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:36:22,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:36:22,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:36:22,414 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:36:22,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:36:22" (1/1) ... [2024-12-02 10:36:22,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4208c32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:22, skipping insertion in model container [2024-12-02 10:36:22,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:36:22" (1/1) ... [2024-12-02 10:36:22,452 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:36:23,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:36:23,138 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:36:23,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:36:23,314 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:36:23,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23 WrapperNode [2024-12-02 10:36:23,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:36:23,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:36:23,315 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:36:23,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:36:23,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,356 INFO L138 Inliner]: procedures = 502, calls = 54, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 169 [2024-12-02 10:36:23,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:36:23,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:36:23,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:36:23,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:36:23,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,366 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,377 INFO L175 MemorySlicer]: Split 2 memory accesses to 2 slices as follows [1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1]. The 0 writes are split as follows [0, 0]. [2024-12-02 10:36:23,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,382 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:36:23,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:36:23,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:36:23,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:36:23,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (1/1) ... [2024-12-02 10:36:23,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:36:23,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:23,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:36:23,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:36:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-12-02 10:36:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-12-02 10:36:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 10:36:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 10:36:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2024-12-02 10:36:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2024-12-02 10:36:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:36:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:36:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:36:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsFalse [2024-12-02 10:36:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsFalse [2024-12-02 10:36:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:36:23,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:36:23,558 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:36:23,560 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:36:23,741 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-12-02 10:36:23,741 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:36:23,751 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:36:23,751 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 10:36:23,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:23 BoogieIcfgContainer [2024-12-02 10:36:23,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:36:23,754 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:36:23,754 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:36:23,758 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:36:23,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:36:22" (1/3) ... [2024-12-02 10:36:23,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7694d740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:36:23, skipping insertion in model container [2024-12-02 10:36:23,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:23" (2/3) ... [2024-12-02 10:36:23,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7694d740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:36:23, skipping insertion in model container [2024-12-02 10:36:23,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:23" (3/3) ... [2024-12-02 10:36:23,760 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_11_good.i [2024-12-02 10:36:23,774 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:36:23,775 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_predec_11_good.i that has 5 procedures, 87 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2024-12-02 10:36:23,824 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:36:23,835 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;@36e88fc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:36:23,835 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-12-02 10:36:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 68 states have internal predecessors, (75), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:36:23,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-02 10:36:23,845 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:23,845 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:23,845 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:23,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:23,850 INFO L85 PathProgramCache]: Analyzing trace with hash 890812736, now seen corresponding path program 1 times [2024-12-02 10:36:23,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:23,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842827475] [2024-12-02 10:36:23,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:23,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:24,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:24,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842827475] [2024-12-02 10:36:24,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842827475] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:24,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:24,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:24,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102235814] [2024-12-02 10:36:24,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:24,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:24,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:24,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:24,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:24,148 INFO L87 Difference]: Start difference. First operand has 87 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 68 states have internal predecessors, (75), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:36:24,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:24,188 INFO L93 Difference]: Finished difference Result 164 states and 215 transitions. [2024-12-02 10:36:24,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:36:24,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-12-02 10:36:24,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:24,196 INFO L225 Difference]: With dead ends: 164 [2024-12-02 10:36:24,197 INFO L226 Difference]: Without dead ends: 78 [2024-12-02 10:36:24,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:24,200 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:24,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 331 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:24,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-12-02 10:36:24,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-12-02 10:36:24,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 48 states have (on average 1.375) internal successors, (66), 61 states have internal predecessors, (66), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:36:24,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2024-12-02 10:36:24,234 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 102 transitions. Word has length 22 [2024-12-02 10:36:24,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:24,235 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 102 transitions. [2024-12-02 10:36:24,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:36:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 102 transitions. [2024-12-02 10:36:24,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 10:36:24,236 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:24,236 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:24,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:36:24,237 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:24,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:24,237 INFO L85 PathProgramCache]: Analyzing trace with hash 770660731, now seen corresponding path program 1 times [2024-12-02 10:36:24,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:24,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221367029] [2024-12-02 10:36:24,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:24,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:24,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:24,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:24,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221367029] [2024-12-02 10:36:24,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221367029] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:24,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:24,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:36:24,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972167126] [2024-12-02 10:36:24,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:24,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:24,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:24,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:24,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:24,322 INFO L87 Difference]: Start difference. First operand 78 states and 102 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 10:36:24,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:24,362 INFO L93 Difference]: Finished difference Result 142 states and 185 transitions. [2024-12-02 10:36:24,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:24,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-12-02 10:36:24,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:24,364 INFO L225 Difference]: With dead ends: 142 [2024-12-02 10:36:24,364 INFO L226 Difference]: Without dead ends: 84 [2024-12-02 10:36:24,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:24,365 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 8 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:24,365 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 197 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:24,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-12-02 10:36:24,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2024-12-02 10:36:24,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 63 states have internal predecessors, (70), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 10:36:24,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 108 transitions. [2024-12-02 10:36:24,376 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 108 transitions. Word has length 24 [2024-12-02 10:36:24,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:24,376 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 108 transitions. [2024-12-02 10:36:24,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 10:36:24,376 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 108 transitions. [2024-12-02 10:36:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 10:36:24,377 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:24,377 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:24,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:36:24,377 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:24,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:24,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1879321038, now seen corresponding path program 1 times [2024-12-02 10:36:24,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:24,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174029357] [2024-12-02 10:36:24,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:24,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:24,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:36:24,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:24,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174029357] [2024-12-02 10:36:24,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174029357] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:24,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:24,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:36:24,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183856829] [2024-12-02 10:36:24,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:24,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:24,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:24,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:24,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:24,454 INFO L87 Difference]: Start difference. First operand 82 states and 108 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:36:24,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:24,478 INFO L93 Difference]: Finished difference Result 83 states and 109 transitions. [2024-12-02 10:36:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:24,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2024-12-02 10:36:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:24,480 INFO L225 Difference]: With dead ends: 83 [2024-12-02 10:36:24,480 INFO L226 Difference]: Without dead ends: 82 [2024-12-02 10:36:24,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:24,481 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 4 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:24,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 179 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:24,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-12-02 10:36:24,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2024-12-02 10:36:24,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 62 states have internal predecessors, (69), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 10:36:24,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 107 transitions. [2024-12-02 10:36:24,491 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 107 transitions. Word has length 25 [2024-12-02 10:36:24,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:24,491 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 107 transitions. [2024-12-02 10:36:24,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 10:36:24,491 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 107 transitions. [2024-12-02 10:36:24,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-12-02 10:36:24,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:24,492 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:24,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:36:24,492 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:24,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:24,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1109155225, now seen corresponding path program 1 times [2024-12-02 10:36:24,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:24,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677773763] [2024-12-02 10:36:24,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:24,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 10:36:24,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:24,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677773763] [2024-12-02 10:36:24,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677773763] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:24,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:24,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:36:24,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664959577] [2024-12-02 10:36:24,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:24,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:36:24,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:24,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:36:24,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:24,579 INFO L87 Difference]: Start difference. First operand 81 states and 107 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 10:36:24,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:24,597 INFO L93 Difference]: Finished difference Result 137 states and 177 transitions. [2024-12-02 10:36:24,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:36:24,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-12-02 10:36:24,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:24,599 INFO L225 Difference]: With dead ends: 137 [2024-12-02 10:36:24,599 INFO L226 Difference]: Without dead ends: 80 [2024-12-02 10:36:24,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:36:24,600 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:24,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:24,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-12-02 10:36:24,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-12-02 10:36:24,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 61 states have internal predecessors, (67), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 10:36:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 103 transitions. [2024-12-02 10:36:24,609 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 103 transitions. Word has length 42 [2024-12-02 10:36:24,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:24,609 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 103 transitions. [2024-12-02 10:36:24,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 10:36:24,610 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 103 transitions. [2024-12-02 10:36:24,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-12-02 10:36:24,611 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:24,611 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:24,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:36:24,611 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:24,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:24,611 INFO L85 PathProgramCache]: Analyzing trace with hash 98430113, now seen corresponding path program 1 times [2024-12-02 10:36:24,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:24,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576560995] [2024-12-02 10:36:24,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:24,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:24,692 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 10:36:24,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:24,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576560995] [2024-12-02 10:36:24,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576560995] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:24,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795782449] [2024-12-02 10:36:24,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:24,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:24,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:24,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:24,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:36:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:24,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:36:24,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:24,850 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 10:36:24,850 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:36:24,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795782449] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:24,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:24,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:36:24,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10224550] [2024-12-02 10:36:24,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:24,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:24,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:24,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:24,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:24,851 INFO L87 Difference]: Start difference. First operand 80 states and 103 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 10:36:24,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:24,874 INFO L93 Difference]: Finished difference Result 128 states and 161 transitions. [2024-12-02 10:36:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:24,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-12-02 10:36:24,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:24,876 INFO L225 Difference]: With dead ends: 128 [2024-12-02 10:36:24,876 INFO L226 Difference]: Without dead ends: 88 [2024-12-02 10:36:24,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:24,877 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 5 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:24,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 176 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:24,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-12-02 10:36:24,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2024-12-02 10:36:24,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 57 states have (on average 1.280701754385965) internal successors, (73), 65 states have internal predecessors, (73), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 10:36:24,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2024-12-02 10:36:24,885 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 43 [2024-12-02 10:36:24,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:24,886 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2024-12-02 10:36:24,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 10:36:24,886 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2024-12-02 10:36:24,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 10:36:24,887 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:24,887 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:24,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:36:25,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:25,088 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:25,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:25,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1243633681, now seen corresponding path program 1 times [2024-12-02 10:36:25,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:25,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61468449] [2024-12-02 10:36:25,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:25,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 10:36:25,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:25,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61468449] [2024-12-02 10:36:25,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61468449] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:25,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732757868] [2024-12-02 10:36:25,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:25,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:25,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:25,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:25,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:36:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:25,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:36:25,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 10:36:25,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:36:25,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732757868] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:25,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:25,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:36:25,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379596401] [2024-12-02 10:36:25,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:25,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:25,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:25,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:25,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:25,284 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 10:36:25,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:25,303 INFO L93 Difference]: Finished difference Result 89 states and 114 transitions. [2024-12-02 10:36:25,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:25,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-12-02 10:36:25,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:25,305 INFO L225 Difference]: With dead ends: 89 [2024-12-02 10:36:25,306 INFO L226 Difference]: Without dead ends: 88 [2024-12-02 10:36:25,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:25,307 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 4 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:25,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 185 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:25,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-12-02 10:36:25,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2024-12-02 10:36:25,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 58 states have (on average 1.2758620689655173) internal successors, (74), 66 states have internal predecessors, (74), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 10:36:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-12-02 10:36:25,315 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 44 [2024-12-02 10:36:25,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:25,315 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-12-02 10:36:25,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 10:36:25,315 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-12-02 10:36:25,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-02 10:36:25,317 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:25,317 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:25,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 10:36:25,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:25,517 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:25,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1824274276, now seen corresponding path program 1 times [2024-12-02 10:36:25,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:25,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070464543] [2024-12-02 10:36:25,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:25,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:25,574 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 10:36:25,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:25,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070464543] [2024-12-02 10:36:25,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070464543] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:25,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:25,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:36:25,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505684917] [2024-12-02 10:36:25,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:25,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:25,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:25,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:25,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:25,576 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 10:36:25,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:25,596 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2024-12-02 10:36:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:25,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2024-12-02 10:36:25,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:25,598 INFO L225 Difference]: With dead ends: 88 [2024-12-02 10:36:25,598 INFO L226 Difference]: Without dead ends: 87 [2024-12-02 10:36:25,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:25,599 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 9 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 181 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 [2024-12-02 10:36:25,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 181 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:25,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-12-02 10:36:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2024-12-02 10:36:25,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 65 states have internal predecessors, (73), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 10:36:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2024-12-02 10:36:25,607 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 111 transitions. Word has length 45 [2024-12-02 10:36:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:25,607 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 111 transitions. [2024-12-02 10:36:25,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 10:36:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 111 transitions. [2024-12-02 10:36:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 10:36:25,609 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:25,609 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:25,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:36:25,609 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:25,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash -717927596, now seen corresponding path program 1 times [2024-12-02 10:36:25,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:25,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147146936] [2024-12-02 10:36:25,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:25,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:25,666 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 10:36:25,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:25,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147146936] [2024-12-02 10:36:25,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147146936] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:25,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:36:25,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:36:25,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974439301] [2024-12-02 10:36:25,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:25,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:25,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:25,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:25,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:25,667 INFO L87 Difference]: Start difference. First operand 86 states and 111 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 10:36:25,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:25,682 INFO L93 Difference]: Finished difference Result 87 states and 112 transitions. [2024-12-02 10:36:25,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:25,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2024-12-02 10:36:25,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:25,683 INFO L225 Difference]: With dead ends: 87 [2024-12-02 10:36:25,683 INFO L226 Difference]: Without dead ends: 86 [2024-12-02 10:36:25,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:36:25,684 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 5 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:25,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 168 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:25,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-12-02 10:36:25,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2024-12-02 10:36:25,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 56 states have (on average 1.25) internal successors, (70), 62 states have internal predecessors, (70), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 10:36:25,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 108 transitions. [2024-12-02 10:36:25,692 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 108 transitions. Word has length 46 [2024-12-02 10:36:25,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:25,693 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 108 transitions. [2024-12-02 10:36:25,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 10:36:25,693 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2024-12-02 10:36:25,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 10:36:25,694 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:25,694 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:25,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:36:25,695 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:25,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:25,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1039381269, now seen corresponding path program 1 times [2024-12-02 10:36:25,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:25,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144936386] [2024-12-02 10:36:25,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:25,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 10:36:25,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:25,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144936386] [2024-12-02 10:36:25,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144936386] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:25,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886450294] [2024-12-02 10:36:25,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:25,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:25,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:25,759 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:25,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:36:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:25,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:36:25,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:25,880 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 10:36:25,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:36:25,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886450294] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:25,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:25,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:36:25,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685247863] [2024-12-02 10:36:25,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:25,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:25,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:25,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:25,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:25,881 INFO L87 Difference]: Start difference. First operand 83 states and 108 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:36:25,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:25,896 INFO L93 Difference]: Finished difference Result 84 states and 109 transitions. [2024-12-02 10:36:25,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:25,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2024-12-02 10:36:25,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:25,897 INFO L225 Difference]: With dead ends: 84 [2024-12-02 10:36:25,897 INFO L226 Difference]: Without dead ends: 83 [2024-12-02 10:36:25,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:25,898 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 4 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:25,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 171 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:25,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-12-02 10:36:25,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2024-12-02 10:36:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 61 states have internal predecessors, (69), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 10:36:25,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2024-12-02 10:36:25,904 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 55 [2024-12-02 10:36:25,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:25,905 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2024-12-02 10:36:25,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:36:25,905 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2024-12-02 10:36:25,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-12-02 10:36:25,906 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:25,906 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:25,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 10:36:26,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:26,107 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:26,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:26,107 INFO L85 PathProgramCache]: Analyzing trace with hash -2138918889, now seen corresponding path program 1 times [2024-12-02 10:36:26,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:26,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87835470] [2024-12-02 10:36:26,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:26,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:26,173 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-12-02 10:36:26,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:26,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87835470] [2024-12-02 10:36:26,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87835470] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:26,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318086548] [2024-12-02 10:36:26,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:26,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:26,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:26,175 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:26,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:36:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:26,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:36:26,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:26,300 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-12-02 10:36:26,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:36:26,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318086548] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:26,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:26,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:36:26,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383025497] [2024-12-02 10:36:26,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:26,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:26,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:26,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:26,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:26,301 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:36:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:26,318 INFO L93 Difference]: Finished difference Result 89 states and 116 transitions. [2024-12-02 10:36:26,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:26,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2024-12-02 10:36:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:26,320 INFO L225 Difference]: With dead ends: 89 [2024-12-02 10:36:26,320 INFO L226 Difference]: Without dead ends: 88 [2024-12-02 10:36:26,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:26,321 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 1 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:26,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 180 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:26,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-12-02 10:36:26,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2024-12-02 10:36:26,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 64 states have internal predecessors, (74), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-12-02 10:36:26,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 114 transitions. [2024-12-02 10:36:26,328 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 114 transitions. Word has length 56 [2024-12-02 10:36:26,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:26,328 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 114 transitions. [2024-12-02 10:36:26,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 10:36:26,328 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2024-12-02 10:36:26,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-12-02 10:36:26,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:26,329 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:26,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:36:26,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:26,530 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:26,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash -12223121, now seen corresponding path program 1 times [2024-12-02 10:36:26,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:26,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40316128] [2024-12-02 10:36:26,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:26,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:26,598 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 10:36:26,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:26,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40316128] [2024-12-02 10:36:26,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40316128] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:26,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140221565] [2024-12-02 10:36:26,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:26,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:26,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:26,600 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:26,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:36:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:26,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:36:26,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:26,733 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-12-02 10:36:26,734 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:36:26,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140221565] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:26,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:26,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:36:26,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028047224] [2024-12-02 10:36:26,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:26,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:26,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:26,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:26,735 INFO L87 Difference]: Start difference. First operand 87 states and 114 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 10:36:26,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:26,746 INFO L93 Difference]: Finished difference Result 88 states and 115 transitions. [2024-12-02 10:36:26,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:26,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 61 [2024-12-02 10:36:26,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:26,747 INFO L225 Difference]: With dead ends: 88 [2024-12-02 10:36:26,747 INFO L226 Difference]: Without dead ends: 87 [2024-12-02 10:36:26,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:26,748 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 1 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:26,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 171 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:26,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-12-02 10:36:26,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 81. [2024-12-02 10:36:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 60 states have internal predecessors, (68), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 10:36:26,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 106 transitions. [2024-12-02 10:36:26,754 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 106 transitions. Word has length 61 [2024-12-02 10:36:26,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:26,754 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 106 transitions. [2024-12-02 10:36:26,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-12-02 10:36:26,755 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 106 transitions. [2024-12-02 10:36:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-12-02 10:36:26,756 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:26,756 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:26,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:36:26,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:26,956 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:26,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:26,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1296780122, now seen corresponding path program 1 times [2024-12-02 10:36:26,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:26,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185886718] [2024-12-02 10:36:26,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:26,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 10:36:27,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:27,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185886718] [2024-12-02 10:36:27,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185886718] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:27,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659270913] [2024-12-02 10:36:27,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:27,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:27,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:27,025 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:27,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:36:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:27,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:36:27,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 10:36:27,149 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:36:27,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659270913] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:27,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:27,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:36:27,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282672441] [2024-12-02 10:36:27,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:27,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:27,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:27,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:27,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:27,150 INFO L87 Difference]: Start difference. First operand 81 states and 106 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:36:27,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:27,159 INFO L93 Difference]: Finished difference Result 81 states and 106 transitions. [2024-12-02 10:36:27,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:27,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2024-12-02 10:36:27,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:27,160 INFO L225 Difference]: With dead ends: 81 [2024-12-02 10:36:27,160 INFO L226 Difference]: Without dead ends: 80 [2024-12-02 10:36:27,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:27,161 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 3 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:27,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 172 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:27,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-12-02 10:36:27,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-12-02 10:36:27,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 59 states have internal predecessors, (67), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 10:36:27,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2024-12-02 10:36:27,167 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 68 [2024-12-02 10:36:27,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:27,167 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2024-12-02 10:36:27,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:36:27,168 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2024-12-02 10:36:27,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 10:36:27,168 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:27,168 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2024-12-02 10:36:27,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:36:27,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:27,369 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:27,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:27,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1545477955, now seen corresponding path program 1 times [2024-12-02 10:36:27,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:27,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286120961] [2024-12-02 10:36:27,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:27,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:27,416 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 10:36:27,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:27,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286120961] [2024-12-02 10:36:27,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286120961] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:27,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346405815] [2024-12-02 10:36:27,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:27,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:27,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:27,418 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:27,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:36:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:27,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:36:27,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:27,557 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 10:36:27,557 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:36:27,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346405815] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:27,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:27,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:36:27,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289985046] [2024-12-02 10:36:27,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:27,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:27,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:27,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:27,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:27,559 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:36:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:27,568 INFO L93 Difference]: Finished difference Result 86 states and 111 transitions. [2024-12-02 10:36:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:27,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2024-12-02 10:36:27,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:27,569 INFO L225 Difference]: With dead ends: 86 [2024-12-02 10:36:27,569 INFO L226 Difference]: Without dead ends: 80 [2024-12-02 10:36:27,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:27,570 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:27,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:27,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-12-02 10:36:27,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-12-02 10:36:27,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 56 states have (on average 1.1785714285714286) internal successors, (66), 59 states have internal predecessors, (66), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-12-02 10:36:27,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 104 transitions. [2024-12-02 10:36:27,576 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 104 transitions. Word has length 69 [2024-12-02 10:36:27,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:27,577 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 104 transitions. [2024-12-02 10:36:27,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:36:27,577 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 104 transitions. [2024-12-02 10:36:27,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 10:36:27,577 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:36:27,578 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 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] [2024-12-02 10:36:27,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 10:36:27,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:27,778 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-12-02 10:36:27,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:36:27,779 INFO L85 PathProgramCache]: Analyzing trace with hash -865419585, now seen corresponding path program 1 times [2024-12-02 10:36:27,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:36:27,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620323319] [2024-12-02 10:36:27,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:27,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:36:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:27,837 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 10:36:27,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:36:27,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620323319] [2024-12-02 10:36:27,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620323319] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:36:27,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926989396] [2024-12-02 10:36:27,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:36:27,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:27,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:36:27,839 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:36:27,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:36:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:36:27,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:36:27,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:36:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 10:36:27,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:36:27,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926989396] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:36:27,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:36:27,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-02 10:36:27,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306575953] [2024-12-02 10:36:27,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:36:27,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:36:27,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:36:27,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:36:27,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:27,972 INFO L87 Difference]: Start difference. First operand 80 states and 104 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:36:27,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:36:27,978 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2024-12-02 10:36:27,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:36:27,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2024-12-02 10:36:27,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:36:27,978 INFO L225 Difference]: With dead ends: 80 [2024-12-02 10:36:27,979 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 10:36:27,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:36:27,979 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:36:27,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 171 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:36:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 10:36:27,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 10:36:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:36:27,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 10:36:27,981 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2024-12-02 10:36:27,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:36:27,981 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 10:36:27,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-12-02 10:36:27,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 10:36:27,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 10:36:27,983 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-12-02 10:36:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-12-02 10:36:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-12-02 10:36:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-12-02 10:36:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-12-02 10:36:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-12-02 10:36:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-12-02 10:36:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-12-02 10:36:27,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:36:28,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:36:28,187 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:36:28,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 10:36:28,265 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 10:36:28,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:36:28 BoogieIcfgContainer [2024-12-02 10:36:28,271 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 10:36:28,272 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:36:28,272 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:36:28,272 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:36:28,272 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:23" (3/4) ... [2024-12-02 10:36:28,274 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 10:36:28,279 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2024-12-02 10:36:28,279 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsFalse [2024-12-02 10:36:28,279 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2024-12-02 10:36:28,280 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrue [2024-12-02 10:36:28,284 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-12-02 10:36:28,284 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-12-02 10:36:28,284 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 10:36:28,285 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 10:36:28,285 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 10:36:28,365 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 10:36:28,366 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 10:36:28,366 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:36:28,366 INFO L158 Benchmark]: Toolchain (without parser) took 5957.24ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 60.6MB in the end (delta: 53.4MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2024-12-02 10:36:28,367 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:36:28,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 904.30ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 54.1MB in the end (delta: 59.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-02 10:36:28,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.58ms. Allocated memory is still 142.6MB. Free memory was 54.1MB in the beginning and 111.9MB in the end (delta: -57.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-12-02 10:36:28,367 INFO L158 Benchmark]: Boogie Preprocessor took 31.61ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 109.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:36:28,368 INFO L158 Benchmark]: RCFGBuilder took 362.72ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 91.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:36:28,368 INFO L158 Benchmark]: TraceAbstraction took 4517.67ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 67.5MB in the end (delta: 24.3MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-12-02 10:36:28,368 INFO L158 Benchmark]: Witness Printer took 94.07ms. Allocated memory is still 142.6MB. Free memory was 67.5MB in the beginning and 60.6MB in the end (delta: 6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:36:28,370 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 904.30ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 54.1MB in the end (delta: 59.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.58ms. Allocated memory is still 142.6MB. Free memory was 54.1MB in the beginning and 111.9MB in the end (delta: -57.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.61ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 109.9MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 362.72ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 91.7MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4517.67ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 67.5MB in the end (delta: 24.3MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Witness Printer took 94.07ms. Allocated memory is still 142.6MB. Free memory was 67.5MB in the beginning and 60.6MB in the end (delta: 6.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1631]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1648]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1648]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 87 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 14, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 2741 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1399 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1342 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 505 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 18 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1134 NumberOfCodeBlocks, 1134 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1112 ConstructedInterpolants, 0 QuantifiedInterpolants, 1368 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1785 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 22 InterpolantComputations, 14 PerfectInterpolantSequences, 529/569 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 10:36:28,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8834c09-ff24-40c2-925b-d7f4d530fa11/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