./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-examples/standard_init9_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/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_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/standard_init9_ground-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/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 32bit --witnessprinter.graph.data.programhash 477192436c119b4e74e1ff9bea9de738ba755c58e7908ace744a87a82dccf838 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:54:08,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:54:08,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:54:08,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:54:08,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:54:08,445 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:54:08,446 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:54:08,446 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:54:08,447 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:54:08,448 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:54:08,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:54:08,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:54:08,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:54:08,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:54:08,452 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:54:08,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:54:08,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:54:08,453 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:54:08,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:54:08,455 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:54:08,455 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:54:08,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:54:08,456 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:54:08,457 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:54:08,458 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:54:08,458 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:54:08,459 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:54:08,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:54:08,460 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:54:08,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:54:08,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:54:08,461 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:54:08,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:54:08,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:54:08,463 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:54:08,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:54:08,464 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:54:08,464 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:54:08,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:54:08,465 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:54:08,466 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:54:08,466 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:54:08,467 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:54:08,467 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:54:08,467 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_77da98d1-5c29-4a76-a248-388f07eafae9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 477192436c119b4e74e1ff9bea9de738ba755c58e7908ace744a87a82dccf838 [2023-11-26 11:54:08,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:54:08,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:54:08,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:54:08,902 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:54:08,902 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:54:08,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/array-examples/standard_init9_ground-2.i [2023-11-26 11:54:12,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:54:12,394 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:54:12,395 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/sv-benchmarks/c/array-examples/standard_init9_ground-2.i [2023-11-26 11:54:12,405 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/data/61e0dadbe/1a081b375bc84cfaa2b7b728c50a45f7/FLAGd24d3d047 [2023-11-26 11:54:12,423 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/data/61e0dadbe/1a081b375bc84cfaa2b7b728c50a45f7 [2023-11-26 11:54:12,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:54:12,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:54:12,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:54:12,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:54:12,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:54:12,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ead720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12, skipping insertion in model container [2023-11-26 11:54:12,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,467 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:54:12,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:54:12,761 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:54:12,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:54:12,806 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:54:12,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12 WrapperNode [2023-11-26 11:54:12,807 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:54:12,808 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:54:12,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:54:12,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:54:12,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,857 INFO L138 Inliner]: procedures = 15, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 118 [2023-11-26 11:54:12,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:54:12,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:54:12,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:54:12,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:54:12,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,896 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 9 writes are split as follows [0, 9]. [2023-11-26 11:54:12,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:54:12,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:54:12,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:54:12,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:54:12,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (1/1) ... [2023-11-26 11:54:12,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:54:12,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:12,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:54:13,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:54:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:54:13,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:54:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:54:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:54:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:54:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:54:13,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:54:13,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:54:13,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:54:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:54:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:54:13,123 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:54:13,133 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:54:13,520 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:54:13,570 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:54:13,570 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-26 11:54:13,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:13 BoogieIcfgContainer [2023-11-26 11:54:13,571 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:54:13,578 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:54:13,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:54:13,587 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:54:13,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:54:12" (1/3) ... [2023-11-26 11:54:13,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da13a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:13, skipping insertion in model container [2023-11-26 11:54:13,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:54:12" (2/3) ... [2023-11-26 11:54:13,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3da13a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:54:13, skipping insertion in model container [2023-11-26 11:54:13,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:13" (3/3) ... [2023-11-26 11:54:13,592 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_init9_ground-2.i [2023-11-26 11:54:13,622 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:54:13,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-26 11:54:13,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:54:13,716 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;@2a53189f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:54:13,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-26 11:54:13,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 65 states have internal predecessors, (87), 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 11:54:13,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 11:54:13,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:13,735 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 11:54:13,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-26 11:54:13,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:13,745 INFO L85 PathProgramCache]: Analyzing trace with hash 219461, now seen corresponding path program 1 times [2023-11-26 11:54:13,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:13,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130369677] [2023-11-26 11:54:13,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:13,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:14,059 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 11:54:14,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:14,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130369677] [2023-11-26 11:54:14,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130369677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:14,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:14,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:54:14,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14729604] [2023-11-26 11:54:14,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:14,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:14,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:14,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:14,136 INFO L87 Difference]: Start difference. First operand has 66 states, 45 states have (on average 1.9333333333333333) internal successors, (87), 65 states have internal predecessors, (87), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 11:54:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:14,478 INFO L93 Difference]: Finished difference Result 154 states and 228 transitions. [2023-11-26 11:54:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:14,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-26 11:54:14,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:14,490 INFO L225 Difference]: With dead ends: 154 [2023-11-26 11:54:14,491 INFO L226 Difference]: Without dead ends: 89 [2023-11-26 11:54:14,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 11:54:14,498 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 17 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:14,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 51 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:54:14,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-26 11:54:14,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-26 11:54:14,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 88 states have internal predecessors, (98), 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 11:54:14,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2023-11-26 11:54:14,550 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 3 [2023-11-26 11:54:14,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:14,551 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2023-11-26 11:54:14,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 11:54:14,551 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2023-11-26 11:54:14,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 11:54:14,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:14,552 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-26 11:54:14,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:54:14,553 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-26 11:54:14,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:14,554 INFO L85 PathProgramCache]: Analyzing trace with hash -2051927382, now seen corresponding path program 1 times [2023-11-26 11:54:14,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:14,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023721266] [2023-11-26 11:54:14,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:14,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:14,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:14,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:14,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023721266] [2023-11-26 11:54:14,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023721266] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:54:14,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399444082] [2023-11-26 11:54:14,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:14,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:54:14,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:14,714 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:54:14,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:54:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:14,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:54:14,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:54:14,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:54:14,861 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:54:14,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399444082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:14,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:54:14,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-26 11:54:14,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584278674] [2023-11-26 11:54:14,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:14,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:54:14,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:14,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:54:14,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:54:14,866 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:15,162 INFO L93 Difference]: Finished difference Result 89 states and 98 transitions. [2023-11-26 11:54:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:54:15,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 11:54:15,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:15,168 INFO L225 Difference]: With dead ends: 89 [2023-11-26 11:54:15,168 INFO L226 Difference]: Without dead ends: 80 [2023-11-26 11:54:15,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:54:15,171 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 85 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:15,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 15 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:54:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-26 11:54:15,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-11-26 11:54:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 69 states have (on average 1.289855072463768) internal successors, (89), 79 states have internal predecessors, (89), 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 11:54:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2023-11-26 11:54:15,201 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 6 [2023-11-26 11:54:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:15,201 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2023-11-26 11:54:15,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2023-11-26 11:54:15,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 11:54:15,207 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:15,207 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-26 11:54:15,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:54:15,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:54:15,416 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-26 11:54:15,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:15,416 INFO L85 PathProgramCache]: Analyzing trace with hash 814760643, now seen corresponding path program 1 times [2023-11-26 11:54:15,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:15,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339706427] [2023-11-26 11:54:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:15,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:54:15,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:15,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339706427] [2023-11-26 11:54:15,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339706427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:15,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:15,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:54:15,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149882806] [2023-11-26 11:54:15,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:15,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:54:15,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:15,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:54:15,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:54:15,516 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:15,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:15,663 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2023-11-26 11:54:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:54:15,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 11:54:15,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:15,673 INFO L225 Difference]: With dead ends: 80 [2023-11-26 11:54:15,673 INFO L226 Difference]: Without dead ends: 71 [2023-11-26 11:54:15,690 INFO L412 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 [2023-11-26 11:54:15,693 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:15,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 31 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:54:15,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-26 11:54:15,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 53. [2023-11-26 11:54:15,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 52 states have internal predecessors, (62), 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 11:54:15,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2023-11-26 11:54:15,721 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 7 [2023-11-26 11:54:15,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:15,722 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2023-11-26 11:54:15,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:54:15,723 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2023-11-26 11:54:15,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-26 11:54:15,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:15,726 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:15,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:54:15,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-26 11:54:15,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:15,727 INFO L85 PathProgramCache]: Analyzing trace with hash -143055752, now seen corresponding path program 1 times [2023-11-26 11:54:15,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:15,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996206842] [2023-11-26 11:54:15,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:15,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 11:54:15,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:15,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996206842] [2023-11-26 11:54:15,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996206842] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:54:15,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071380370] [2023-11-26 11:54:15,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:15,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:54:15,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:15,878 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:54:15,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:54:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:15,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:54:15,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:54:15,998 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 11:54:15,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:54:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 11:54:16,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071380370] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:54:16,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:54:16,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-26 11:54:16,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148380559] [2023-11-26 11:54:16,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:54:16,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:54:16,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:16,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:54:16,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:54:16,034 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 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 11:54:16,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:16,327 INFO L93 Difference]: Finished difference Result 182 states and 226 transitions. [2023-11-26 11:54:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:54:16,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-11-26 11:54:16,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:16,329 INFO L225 Difference]: With dead ends: 182 [2023-11-26 11:54:16,329 INFO L226 Difference]: Without dead ends: 134 [2023-11-26 11:54:16,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:54:16,331 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 148 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:16,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 31 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:54:16,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2023-11-26 11:54:16,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2023-11-26 11:54:16,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 132 states have (on average 1.0833333333333333) internal successors, (143), 133 states have internal predecessors, (143), 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 11:54:16,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 143 transitions. [2023-11-26 11:54:16,349 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 143 transitions. Word has length 50 [2023-11-26 11:54:16,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:16,349 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 143 transitions. [2023-11-26 11:54:16,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 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 11:54:16,350 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 143 transitions. [2023-11-26 11:54:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-26 11:54:16,356 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:16,356 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:54:16,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:54:16,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:54:16,562 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-26 11:54:16,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:16,563 INFO L85 PathProgramCache]: Analyzing trace with hash 86347743, now seen corresponding path program 2 times [2023-11-26 11:54:16,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:16,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357063620] [2023-11-26 11:54:16,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:16,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:17,006 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-11-26 11:54:17,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:17,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357063620] [2023-11-26 11:54:17,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357063620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:17,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:17,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:54:17,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541358992] [2023-11-26 11:54:17,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:17,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:54:17,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:17,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:54:17,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:54:17,010 INFO L87 Difference]: Start difference. First operand 134 states and 143 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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 11:54:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:17,045 INFO L93 Difference]: Finished difference Result 141 states and 150 transitions. [2023-11-26 11:54:17,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:54:17,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2023-11-26 11:54:17,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:17,048 INFO L225 Difference]: With dead ends: 141 [2023-11-26 11:54:17,048 INFO L226 Difference]: Without dead ends: 139 [2023-11-26 11:54:17,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:54:17,050 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 3 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:17,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 142 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:54:17,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-26 11:54:17,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2023-11-26 11:54:17,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 137 states have (on average 1.0802919708029197) internal successors, (148), 138 states have internal predecessors, (148), 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 11:54:17,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 148 transitions. [2023-11-26 11:54:17,069 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 148 transitions. Word has length 131 [2023-11-26 11:54:17,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:17,070 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 148 transitions. [2023-11-26 11:54:17,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 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 11:54:17,071 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 148 transitions. [2023-11-26 11:54:17,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-26 11:54:17,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:17,077 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-26 11:54:17,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:54:17,078 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-26 11:54:17,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash -139124326, now seen corresponding path program 1 times [2023-11-26 11:54:17,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:17,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055830358] [2023-11-26 11:54:17,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:17,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-26 11:54:17,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:17,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055830358] [2023-11-26 11:54:17,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055830358] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:54:17,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670234319] [2023-11-26 11:54:17,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:17,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:54:17,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:17,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:54:17,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:54:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:17,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:54:17,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:54:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-26 11:54:17,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:54:17,768 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-26 11:54:17,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670234319] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:54:17,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:54:17,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-26 11:54:17,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062105873] [2023-11-26 11:54:17,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:54:17,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:54:17,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:17,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:54:17,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:54:17,772 INFO L87 Difference]: Start difference. First operand 139 states and 148 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 12 states have internal predecessors, (79), 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 11:54:18,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:18,371 INFO L93 Difference]: Finished difference Result 426 states and 497 transitions. [2023-11-26 11:54:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:54:18,372 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 12 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-11-26 11:54:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:18,374 INFO L225 Difference]: With dead ends: 426 [2023-11-26 11:54:18,374 INFO L226 Difference]: Without dead ends: 301 [2023-11-26 11:54:18,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:54:18,381 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 292 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:18,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 52 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:54:18,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-11-26 11:54:18,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2023-11-26 11:54:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 299 states have (on average 1.0367892976588629) internal successors, (310), 300 states have internal predecessors, (310), 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 11:54:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 310 transitions. [2023-11-26 11:54:18,424 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 310 transitions. Word has length 136 [2023-11-26 11:54:18,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:18,424 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 310 transitions. [2023-11-26 11:54:18,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 12 states have internal predecessors, (79), 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 11:54:18,425 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 310 transitions. [2023-11-26 11:54:18,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-11-26 11:54:18,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:18,432 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-26 11:54:18,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:54:18,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 11:54:18,639 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-26 11:54:18,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:18,640 INFO L85 PathProgramCache]: Analyzing trace with hash -2113962886, now seen corresponding path program 2 times [2023-11-26 11:54:18,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:18,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792248284] [2023-11-26 11:54:18,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:18,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2023-11-26 11:54:19,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:19,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792248284] [2023-11-26 11:54:19,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792248284] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:54:19,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36936154] [2023-11-26 11:54:19,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:54:19,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:54:19,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:19,643 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:54:19,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:54:19,944 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:54:19,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:54:19,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 11:54:19,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:54:20,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2023-11-26 11:54:20,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:54:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 1164 trivial. 0 not checked. [2023-11-26 11:54:20,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36936154] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:54:20,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:54:20,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-11-26 11:54:20,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627570350] [2023-11-26 11:54:20,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:54:20,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-26 11:54:20,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:20,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-26 11:54:20,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-26 11:54:20,394 INFO L87 Difference]: Start difference. First operand 301 states and 310 transitions. Second operand has 25 states, 25 states have (on average 4.6) internal successors, (115), 24 states have internal predecessors, (115), 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 11:54:21,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:21,688 INFO L93 Difference]: Finished difference Result 894 states and 1019 transitions. [2023-11-26 11:54:21,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-26 11:54:21,689 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.6) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 298 [2023-11-26 11:54:21,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:21,694 INFO L225 Difference]: With dead ends: 894 [2023-11-26 11:54:21,695 INFO L226 Difference]: Without dead ends: 625 [2023-11-26 11:54:21,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 583 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-26 11:54:21,698 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 756 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:54:21,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 52 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:54:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2023-11-26 11:54:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2023-11-26 11:54:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 623 states have (on average 1.0176565008025682) internal successors, (634), 624 states have internal predecessors, (634), 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 11:54:21,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 634 transitions. [2023-11-26 11:54:21,749 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 634 transitions. Word has length 298 [2023-11-26 11:54:21,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:21,750 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 634 transitions. [2023-11-26 11:54:21,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.6) internal successors, (115), 24 states have internal predecessors, (115), 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 11:54:21,751 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 634 transitions. [2023-11-26 11:54:21,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2023-11-26 11:54:21,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:21,776 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 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] [2023-11-26 11:54:21,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:54:21,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 11:54:21,984 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-26 11:54:21,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:21,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1087752762, now seen corresponding path program 3 times [2023-11-26 11:54:21,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:21,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523767535] [2023-11-26 11:54:21,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:21,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:25,191 INFO L134 CoverageAnalysis]: Checked inductivity of 6439 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2023-11-26 11:54:25,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:25,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523767535] [2023-11-26 11:54:25,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523767535] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:54:25,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968949509] [2023-11-26 11:54:25,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:54:25,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:54:25,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:54:25,199 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:54:25,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:54:25,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-26 11:54:25,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:54:25,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:54:25,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:54:25,618 INFO L134 CoverageAnalysis]: Checked inductivity of 6439 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6435 trivial. 0 not checked. [2023-11-26 11:54:25,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:54:25,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968949509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:25,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:54:25,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [24] total 28 [2023-11-26 11:54:25,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296302218] [2023-11-26 11:54:25,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:25,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:54:25,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:25,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:54:25,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=449, Unknown=0, NotChecked=0, Total=756 [2023-11-26 11:54:25,622 INFO L87 Difference]: Start difference. First operand 625 states and 634 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 11:54:25,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:25,679 INFO L93 Difference]: Finished difference Result 625 states and 634 transitions. [2023-11-26 11:54:25,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:54:25,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 622 [2023-11-26 11:54:25,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:25,690 INFO L225 Difference]: With dead ends: 625 [2023-11-26 11:54:25,690 INFO L226 Difference]: Without dead ends: 624 [2023-11-26 11:54:25,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 620 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=312, Invalid=500, Unknown=0, NotChecked=0, Total=812 [2023-11-26 11:54:25,693 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 6 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 136 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 11:54:25,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 136 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:54:25,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-11-26 11:54:25,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2023-11-26 11:54:25,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 623 states have (on average 1.0160513643659712) internal successors, (633), 623 states have internal predecessors, (633), 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 11:54:25,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 633 transitions. [2023-11-26 11:54:25,727 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 633 transitions. Word has length 622 [2023-11-26 11:54:25,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:25,729 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 633 transitions. [2023-11-26 11:54:25,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 11:54:25,729 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 633 transitions. [2023-11-26 11:54:25,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2023-11-26 11:54:25,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:54:25,744 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 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] [2023-11-26 11:54:25,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:54:25,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-26 11:54:25,951 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-11-26 11:54:25,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:54:25,952 INFO L85 PathProgramCache]: Analyzing trace with hash -639402531, now seen corresponding path program 1 times [2023-11-26 11:54:25,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:54:25,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218665594] [2023-11-26 11:54:25,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:54:25,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:54:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:54:26,664 INFO L134 CoverageAnalysis]: Checked inductivity of 6440 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6436 trivial. 0 not checked. [2023-11-26 11:54:26,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:54:26,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218665594] [2023-11-26 11:54:26,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218665594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:54:26,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:54:26,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:54:26,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611287843] [2023-11-26 11:54:26,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:54:26,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:54:26,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:54:26,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:54:26,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:54:26,667 INFO L87 Difference]: Start difference. First operand 624 states and 633 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 11:54:26,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:54:26,706 INFO L93 Difference]: Finished difference Result 624 states and 633 transitions. [2023-11-26 11:54:26,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:54:26,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 623 [2023-11-26 11:54:26,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:54:26,708 INFO L225 Difference]: With dead ends: 624 [2023-11-26 11:54:26,708 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 11:54:26,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:54:26,710 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 2 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 136 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 11:54:26,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 136 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:54:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 11:54:26,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 11:54:26,712 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 11:54:26,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 11:54:26,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 623 [2023-11-26 11:54:26,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:54:26,713 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 11:54:26,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 11:54:26,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 11:54:26,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 11:54:26,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-11-26 11:54:26,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-11-26 11:54:26,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-11-26 11:54:26,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-11-26 11:54:26,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-11-26 11:54:26,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-11-26 11:54:26,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-11-26 11:54:26,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-11-26 11:54:26,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2023-11-26 11:54:26,718 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2023-11-26 11:54:26,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2023-11-26 11:54:26,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2023-11-26 11:54:26,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-11-26 11:54:26,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-11-26 11:54:26,719 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-11-26 11:54:26,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-11-26 11:54:26,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-11-26 11:54:26,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-11-26 11:54:26,720 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-11-26 11:54:26,721 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-11-26 11:54:26,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:54:26,723 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 11:54:26,997 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-26 11:54:26,998 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 30) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-26 11:54:26,998 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 30) no Hoare annotation was computed. [2023-11-26 11:54:26,998 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-26 11:54:26,998 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-26 11:54:26,999 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 52 55) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-26 11:54:26,999 INFO L899 garLoopResultBuilder]: For program point L52-3(lines 52 55) no Hoare annotation was computed. [2023-11-26 11:54:26,999 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-26 11:54:26,999 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-26 11:54:27,000 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-26 11:54:27,000 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-26 11:54:27,001 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-26 11:54:27,001 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2023-11-26 11:54:27,002 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-26 11:54:27,002 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-26 11:54:27,002 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-26 11:54:27,002 INFO L895 garLoopResultBuilder]: At program point L37-2(lines 37 40) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-26 11:54:27,003 INFO L899 garLoopResultBuilder]: For program point L37-3(lines 37 40) no Hoare annotation was computed. [2023-11-26 11:54:27,003 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2023-11-26 11:54:27,003 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-11-26 11:54:27,004 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-11-26 11:54:27,004 INFO L899 garLoopResultBuilder]: For program point L62-3(line 62) no Hoare annotation was computed. [2023-11-26 11:54:27,005 INFO L899 garLoopResultBuilder]: For program point L62-4(line 62) no Hoare annotation was computed. [2023-11-26 11:54:27,006 INFO L895 garLoopResultBuilder]: At program point L62-5(lines 62 64) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648))) [2023-11-26 11:54:27,007 INFO L899 garLoopResultBuilder]: For program point L62-6(lines 62 64) no Hoare annotation was computed. [2023-11-26 11:54:27,007 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-26 11:54:27,007 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2023-11-26 11:54:27,007 INFO L899 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2023-11-26 11:54:27,008 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2023-11-26 11:54:27,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-26 11:54:27,008 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2023-11-26 11:54:27,008 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 11:54:27,008 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 62) no Hoare annotation was computed. [2023-11-26 11:54:27,009 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 25) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-26 11:54:27,009 INFO L899 garLoopResultBuilder]: For program point L22-3(lines 22 25) no Hoare annotation was computed. [2023-11-26 11:54:27,011 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 50) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-26 11:54:27,011 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 50) no Hoare annotation was computed. [2023-11-26 11:54:27,011 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-26 11:54:27,011 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-11-26 11:54:27,012 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-11-26 11:54:27,012 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 62) no Hoare annotation was computed. [2023-11-26 11:54:27,012 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-26 11:54:27,012 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 35) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-26 11:54:27,013 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-26 11:54:27,013 INFO L899 garLoopResultBuilder]: For program point L32-3(lines 32 35) no Hoare annotation was computed. [2023-11-26 11:54:27,013 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-11-26 11:54:27,013 INFO L899 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2023-11-26 11:54:27,013 INFO L895 garLoopResultBuilder]: At program point L57-2(lines 57 60) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-26 11:54:27,014 INFO L899 garLoopResultBuilder]: For program point L57-3(lines 57 60) no Hoare annotation was computed. [2023-11-26 11:54:27,014 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-26 11:54:27,014 INFO L899 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2023-11-26 11:54:27,014 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-26 11:54:27,014 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 11:54:27,014 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2023-11-26 11:54:27,015 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-26 11:54:27,015 INFO L895 garLoopResultBuilder]: At program point L17-2(lines 17 20) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-26 11:54:27,015 INFO L899 garLoopResultBuilder]: For program point L17-3(lines 17 20) no Hoare annotation was computed. [2023-11-26 11:54:27,015 INFO L895 garLoopResultBuilder]: At program point L42-2(lines 42 45) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0)) [2023-11-26 11:54:27,015 INFO L899 garLoopResultBuilder]: For program point L42-3(lines 42 45) no Hoare annotation was computed. [2023-11-26 11:54:27,016 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-11-26 11:54:27,016 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2023-11-26 11:54:27,016 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2023-11-26 11:54:27,016 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2023-11-26 11:54:27,016 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-11-26 11:54:27,017 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2023-11-26 11:54:27,017 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-26 11:54:27,022 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1] [2023-11-26 11:54:27,025 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:54:27,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:54:27 BoogieIcfgContainer [2023-11-26 11:54:27,042 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:54:27,043 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:54:27,043 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:54:27,043 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:54:27,044 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:54:13" (3/4) ... [2023-11-26 11:54:27,047 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:54:27,060 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-26 11:54:27,060 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 11:54:27,061 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:54:27,061 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:54:27,209 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:54:27,210 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:54:27,210 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:54:27,211 INFO L158 Benchmark]: Toolchain (without parser) took 14783.63ms. Allocated memory was 148.9MB in the beginning and 289.4MB in the end (delta: 140.5MB). Free memory was 109.0MB in the beginning and 195.8MB in the end (delta: -86.8MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,211 INFO L158 Benchmark]: CDTParser took 1.53ms. Allocated memory is still 111.1MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:54:27,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.34ms. Allocated memory is still 148.9MB. Free memory was 108.4MB in the beginning and 116.2MB in the end (delta: -7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.66ms. Allocated memory is still 148.9MB. Free memory was 116.2MB in the beginning and 114.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,213 INFO L158 Benchmark]: Boogie Preprocessor took 60.16ms. Allocated memory is still 148.9MB. Free memory was 114.2MB in the beginning and 112.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,213 INFO L158 Benchmark]: RCFGBuilder took 652.10ms. Allocated memory is still 148.9MB. Free memory was 112.1MB in the beginning and 96.7MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,214 INFO L158 Benchmark]: TraceAbstraction took 13464.60ms. Allocated memory was 148.9MB in the beginning and 289.4MB in the end (delta: 140.5MB). Free memory was 95.9MB in the beginning and 201.1MB in the end (delta: -105.2MB). Peak memory consumption was 121.3MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,214 INFO L158 Benchmark]: Witness Printer took 167.57ms. Allocated memory is still 289.4MB. Free memory was 201.1MB in the beginning and 195.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:54:27,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.53ms. Allocated memory is still 111.1MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.34ms. Allocated memory is still 148.9MB. Free memory was 108.4MB in the beginning and 116.2MB in the end (delta: -7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.66ms. Allocated memory is still 148.9MB. Free memory was 116.2MB in the beginning and 114.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.16ms. Allocated memory is still 148.9MB. Free memory was 114.2MB in the beginning and 112.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 652.10ms. Allocated memory is still 148.9MB. Free memory was 112.1MB in the beginning and 96.7MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13464.60ms. Allocated memory was 148.9MB in the beginning and 289.4MB in the end (delta: 140.5MB). Free memory was 95.9MB in the beginning and 201.1MB in the end (delta: -105.2MB). Peak memory consumption was 121.3MB. Max. memory is 16.1GB. * Witness Printer took 167.57ms. Allocated memory is still 289.4MB. Free memory was 201.1MB in the beginning and 195.8MB in the end (delta: 5.2MB). 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: 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 1 procedures, 66 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 9, TraceHistogramMax: 22, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1325 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1325 mSDsluCounter, 646 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 352 mSDsCounter, 884 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1395 IncrementalHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 884 mSolverCounterUnsat, 294 mSDtfsCounter, 1395 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1648 GetRequests, 1571 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=625occurred in iteration=7, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 218 NumberOfFragments, 72 HoareAnnotationTreeSize, 10 FomulaSimplifications, 1583 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 10 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 2988 NumberOfCodeBlocks, 2421 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3455 ConstructedInterpolants, 0 QuantifiedInterpolants, 3941 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1660 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 17 InterpolantComputations, 6 PerfectInterpolantSequences, 22862/24083 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 20 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((1 <= i) && (0 <= (x + 2147483648))) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-26 11:54:27,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77da98d1-5c29-4a76-a248-388f07eafae9/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE