./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme --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 d538929dad90de25b95b9056d912e0e447b660960ab4ba0d12902f686d286892 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:50:17,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:50:17,393 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 11:50:17,405 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:50:17,406 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:50:17,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:50:17,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:50:17,451 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:50:17,452 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:50:17,457 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:50:17,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:50:17,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:50:17,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:50:17,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:50:17,462 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:50:17,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:50:17,463 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:50:17,463 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:50:17,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:50:17,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:50:17,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:50:17,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:50:17,465 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:50:17,466 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:50:17,466 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:50:17,467 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:50:17,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:50:17,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:50:17,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:50:17,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:50:17,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:17,471 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:50:17,471 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:50:17,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:50:17,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:50:17,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:50:17,472 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:50:17,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:50:17,472 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:50:17,473 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:50:17,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:50:17,473 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d538929dad90de25b95b9056d912e0e447b660960ab4ba0d12902f686d286892 [2023-11-26 11:50:17,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:50:17,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:50:17,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:50:17,791 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:50:17,792 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:50:17,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_good.i [2023-11-26 11:50:20,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:50:21,349 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:50:21,350 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_41_good.i [2023-11-26 11:50:21,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/data/fd315056f/15b692d3085c42c8a0ad7cf47af0a3c0/FLAG27fc75357 [2023-11-26 11:50:21,412 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/data/fd315056f/15b692d3085c42c8a0ad7cf47af0a3c0 [2023-11-26 11:50:21,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:50:21,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:50:21,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:21,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:50:21,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:50:21,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce6ec28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:21, skipping insertion in model container [2023-11-26 11:50:21,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:21" (1/1) ... [2023-11-26 11:50:21,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:50:22,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:22,515 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:50:22,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:22,873 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:22,873 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:22,874 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:22,874 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:22,882 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:50:22,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22 WrapperNode [2023-11-26 11:50:22,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:22,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:22,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:50:22,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:50:22,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:22,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:22,988 INFO L138 Inliner]: procedures = 502, calls = 62, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 112 [2023-11-26 11:50:22,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:22,989 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:50:22,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:50:22,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:50:23,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:23,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:23,017 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:23,045 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2023-11-26 11:50:23,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:23,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:23,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:23,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:23,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:23,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:23,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:50:23,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:50:23,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:50:23,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:50:23,087 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (1/1) ... [2023-11-26 11:50:23,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:23,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:23,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:50:23,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:50:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-26 11:50:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-26 11:50:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 11:50:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 11:50:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:50:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:50:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:50:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 11:50:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:50:23,403 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:50:23,406 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:50:23,665 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:50:23,713 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:50:23,713 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:50:23,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:23 BoogieIcfgContainer [2023-11-26 11:50:23,714 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:50:23,717 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:50:23,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:50:23,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:50:23,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:50:21" (1/3) ... [2023-11-26 11:50:23,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3abc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:50:23, skipping insertion in model container [2023-11-26 11:50:23,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:22" (2/3) ... [2023-11-26 11:50:23,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3abc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:50:23, skipping insertion in model container [2023-11-26 11:50:23,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:23" (3/3) ... [2023-11-26 11:50:23,725 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_41_good.i [2023-11-26 11:50:23,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:50:23,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-26 11:50:23,799 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:50:23,807 INFO L357 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, mHoare=true, 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;@708561b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:50:23,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-26 11:50:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 38 states have internal predecessors, (53), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 11:50:23,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-26 11:50:23,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:50:23,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:23,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:50:23,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:23,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1746895502, now seen corresponding path program 1 times [2023-11-26 11:50:23,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:23,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588086567] [2023-11-26 11:50:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:23,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:24,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:24,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:24,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588086567] [2023-11-26 11:50:24,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588086567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:24,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:24,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:24,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425748678] [2023-11-26 11:50:24,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:24,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:24,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:24,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:24,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:24,329 INFO L87 Difference]: Start difference. First operand has 46 states, 34 states have (on average 1.5588235294117647) internal successors, (53), 38 states have internal predecessors, (53), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:50:24,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:50:24,394 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2023-11-26 11:50:24,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:24,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-26 11:50:24,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:50:24,403 INFO L225 Difference]: With dead ends: 46 [2023-11-26 11:50:24,403 INFO L226 Difference]: Without dead ends: 40 [2023-11-26 11:50:24,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:24,410 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 2 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:50:24,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 105 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:50:24,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-26 11:50:24,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-26 11:50:24,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.53125) internal successors, (49), 34 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:50:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2023-11-26 11:50:24,459 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 15 [2023-11-26 11:50:24,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:50:24,460 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2023-11-26 11:50:24,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:50:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-11-26 11:50:24,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-26 11:50:24,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:50:24,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:24,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:50:24,463 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:50:24,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:24,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1680814412, now seen corresponding path program 1 times [2023-11-26 11:50:24,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:24,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698627065] [2023-11-26 11:50:24,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:24,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:24,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:24,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:50:24,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:24,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698627065] [2023-11-26 11:50:24,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698627065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:24,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:24,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:24,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365074798] [2023-11-26 11:50:24,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:24,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:24,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:24,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:24,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:24,825 INFO L87 Difference]: Start difference. First operand 40 states and 55 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:50:24,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:50:24,877 INFO L93 Difference]: Finished difference Result 40 states and 55 transitions. [2023-11-26 11:50:24,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:24,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-11-26 11:50:24,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:50:24,881 INFO L225 Difference]: With dead ends: 40 [2023-11-26 11:50:24,881 INFO L226 Difference]: Without dead ends: 39 [2023-11-26 11:50:24,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:24,884 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 3 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 89 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 [2023-11-26 11:50:24,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 89 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:50:24,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-26 11:50:24,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-26 11:50:24,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.5) internal successors, (48), 33 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:50:24,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2023-11-26 11:50:24,899 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 16 [2023-11-26 11:50:24,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:50:24,900 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2023-11-26 11:50:24,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:50:24,900 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2023-11-26 11:50:24,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 11:50:24,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:50:24,904 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:24,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:50:24,904 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:50:24,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:24,907 INFO L85 PathProgramCache]: Analyzing trace with hash -587670693, now seen corresponding path program 1 times [2023-11-26 11:50:24,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:24,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595167236] [2023-11-26 11:50:24,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:24,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:25,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:25,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:50:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:50:25,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:25,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595167236] [2023-11-26 11:50:25,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595167236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:25,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:25,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:25,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41047744] [2023-11-26 11:50:25,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:25,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:25,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:25,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:25,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:25,147 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:50:25,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:50:25,170 INFO L93 Difference]: Finished difference Result 39 states and 54 transitions. [2023-11-26 11:50:25,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:25,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-26 11:50:25,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:50:25,172 INFO L225 Difference]: With dead ends: 39 [2023-11-26 11:50:25,172 INFO L226 Difference]: Without dead ends: 38 [2023-11-26 11:50:25,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:25,174 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 2 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 96 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 [2023-11-26 11:50:25,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 96 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:50:25,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-26 11:50:25,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-26 11:50:25,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.46875) internal successors, (47), 32 states have internal predecessors, (47), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 11:50:25,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2023-11-26 11:50:25,182 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 22 [2023-11-26 11:50:25,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:50:25,183 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2023-11-26 11:50:25,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:50:25,183 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2023-11-26 11:50:25,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-26 11:50:25,185 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:50:25,185 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:50:25,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:50:25,185 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:50:25,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:50:25,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1037922159, now seen corresponding path program 1 times [2023-11-26 11:50:25,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:50:25,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29002825] [2023-11-26 11:50:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:50:25,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:50:25,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:25,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:50:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:25,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 11:50:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:50:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:50:25,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:50:25,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29002825] [2023-11-26 11:50:25,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29002825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:50:25,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:50:25,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:50:25,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934581195] [2023-11-26 11:50:25,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:50:25,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:50:25,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:50:25,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:50:25,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:25,282 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:50:25,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:50:25,313 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2023-11-26 11:50:25,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:50:25,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-26 11:50:25,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:50:25,316 INFO L225 Difference]: With dead ends: 38 [2023-11-26 11:50:25,316 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:50:25,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:50:25,323 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:50:25,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:50:25,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:50:25,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:50:25,329 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) [2023-11-26 11:50:25,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:50:25,329 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2023-11-26 11:50:25,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:50:25,330 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:50:25,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:50:25,330 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:50:25,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:50:25,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-26 11:50:25,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-26 11:50:25,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-26 11:50:25,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-26 11:50:25,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:50:25,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:50:25,358 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-26 11:50:25,358 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-26 11:50:25,358 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2023-11-26 11:50:25,359 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2023-11-26 11:50:25,360 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-26 11:50:25,360 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-26 11:50:25,361 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1551) no Hoare annotation was computed. [2023-11-26 11:50:25,362 INFO L899 garLoopResultBuilder]: For program point L1563(lines 1563 1575) no Hoare annotation was computed. [2023-11-26 11:50:25,362 INFO L899 garLoopResultBuilder]: For program point L1580(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,362 INFO L899 garLoopResultBuilder]: For program point L1580-1(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,362 INFO L899 garLoopResultBuilder]: For program point L1580-3(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,362 INFO L899 garLoopResultBuilder]: For program point L1580-5(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,363 INFO L899 garLoopResultBuilder]: For program point L1580-7(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,363 INFO L899 garLoopResultBuilder]: For program point L1580-8(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,363 INFO L899 garLoopResultBuilder]: For program point L1580-10(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,363 INFO L899 garLoopResultBuilder]: For program point L1580-12(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,364 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1567) no Hoare annotation was computed. [2023-11-26 11:50:25,364 INFO L899 garLoopResultBuilder]: For program point L1580-14(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,364 INFO L899 garLoopResultBuilder]: For program point L1580-16(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,364 INFO L899 garLoopResultBuilder]: For program point L1580-18(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,365 INFO L899 garLoopResultBuilder]: For program point L1580-20(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,365 INFO L899 garLoopResultBuilder]: For program point L1580-22(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,365 INFO L899 garLoopResultBuilder]: For program point L1580-23(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,365 INFO L899 garLoopResultBuilder]: For program point L1580-25(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,365 INFO L899 garLoopResultBuilder]: For program point L1580-27(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,365 INFO L899 garLoopResultBuilder]: For program point L1580-29(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,366 INFO L899 garLoopResultBuilder]: For program point L1580-30(line 1580) no Hoare annotation was computed. [2023-11-26 11:50:25,366 INFO L895 garLoopResultBuilder]: At program point L1573(line 1573) the Hoare annotation is: (< |ULTIMATE.start_goodB2GSink_~data#1| 2147483648) [2023-11-26 11:50:25,366 INFO L899 garLoopResultBuilder]: For program point L1573-1(line 1573) no Hoare annotation was computed. [2023-11-26 11:50:25,366 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1567) no Hoare annotation was computed. [2023-11-26 11:50:25,366 INFO L899 garLoopResultBuilder]: For program point L1565(lines 1565 1574) no Hoare annotation was computed. [2023-11-26 11:50:25,367 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:50:25,367 INFO L902 garLoopResultBuilder]: At program point L1591(line 1591) the Hoare annotation is: true [2023-11-26 11:50:25,367 INFO L899 garLoopResultBuilder]: For program point L1591-1(line 1591) no Hoare annotation was computed. [2023-11-26 11:50:25,367 INFO L899 garLoopResultBuilder]: For program point L1567(line 1567) no Hoare annotation was computed. [2023-11-26 11:50:25,367 INFO L899 garLoopResultBuilder]: For program point L1567-1(line 1567) no Hoare annotation was computed. [2023-11-26 11:50:25,368 INFO L899 garLoopResultBuilder]: For program point L1551(line 1551) no Hoare annotation was computed. [2023-11-26 11:50:25,368 INFO L899 garLoopResultBuilder]: For program point L1551-1(line 1551) no Hoare annotation was computed. [2023-11-26 11:50:25,368 INFO L902 garLoopResultBuilder]: At program point L1593(line 1593) the Hoare annotation is: true [2023-11-26 11:50:25,369 INFO L899 garLoopResultBuilder]: For program point L1593-1(line 1593) no Hoare annotation was computed. [2023-11-26 11:50:25,369 INFO L895 garLoopResultBuilder]: At program point L1569(line 1569) the Hoare annotation is: (< |ULTIMATE.start_goodB2GSink_~data#1| 2147483648) [2023-11-26 11:50:25,370 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:50:25,370 INFO L899 garLoopResultBuilder]: For program point L1569-1(line 1569) no Hoare annotation was computed. [2023-11-26 11:50:25,370 INFO L902 garLoopResultBuilder]: At program point L1553(line 1553) the Hoare annotation is: true [2023-11-26 11:50:25,370 INFO L899 garLoopResultBuilder]: For program point L1553-1(line 1553) no Hoare annotation was computed. [2023-11-26 11:50:25,370 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1551) no Hoare annotation was computed. [2023-11-26 11:50:25,374 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-26 11:50:25,378 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:50:25,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:50:25 BoogieIcfgContainer [2023-11-26 11:50:25,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:50:25,389 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:50:25,390 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:50:25,390 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:50:25,391 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:50:23" (3/4) ... [2023-11-26 11:50:25,393 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:50:25,397 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-26 11:50:25,398 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-26 11:50:25,407 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-26 11:50:25,407 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-26 11:50:25,412 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:50:25,413 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:50:25,514 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:50:25,515 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:50:25,515 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:50:25,516 INFO L158 Benchmark]: Toolchain (without parser) took 4096.10ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 112.2MB in the beginning and 114.7MB in the end (delta: -2.5MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2023-11-26 11:50:25,516 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:50:25,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1460.40ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 111.7MB in the beginning and 154.5MB in the end (delta: -42.8MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2023-11-26 11:50:25,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.63ms. Allocated memory is still 195.0MB. Free memory was 154.5MB in the beginning and 151.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:50:25,517 INFO L158 Benchmark]: Boogie Preprocessor took 85.02ms. Allocated memory is still 195.0MB. Free memory was 151.4MB in the beginning and 148.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:50:25,517 INFO L158 Benchmark]: RCFGBuilder took 639.35ms. Allocated memory is still 195.0MB. Free memory was 148.2MB in the beginning and 130.4MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-26 11:50:25,518 INFO L158 Benchmark]: TraceAbstraction took 1671.06ms. Allocated memory is still 195.0MB. Free memory was 130.4MB in the beginning and 121.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 11:50:25,518 INFO L158 Benchmark]: Witness Printer took 126.32ms. Allocated memory is still 195.0MB. Free memory was 121.0MB in the beginning and 114.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:50:25,520 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1460.40ms. Allocated memory was 146.8MB in the beginning and 195.0MB in the end (delta: 48.2MB). Free memory was 111.7MB in the beginning and 154.5MB in the end (delta: -42.8MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.63ms. Allocated memory is still 195.0MB. Free memory was 154.5MB in the beginning and 151.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.02ms. Allocated memory is still 195.0MB. Free memory was 151.4MB in the beginning and 148.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 639.35ms. Allocated memory is still 195.0MB. Free memory was 148.2MB in the beginning and 130.4MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1671.06ms. Allocated memory is still 195.0MB. Free memory was 130.4MB in the beginning and 121.0MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 126.32ms. Allocated memory is still 195.0MB. Free memory was 121.0MB in the beginning and 114.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: 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 3 procedures, 46 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 386 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 189 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 197 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 11 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 8/8 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:50:25,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_487a8151-9496-4ebd-9c52-39e23de90bad/bin/uautomizer-verify-VRDe98Ueme/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