./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/min-2-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/min-2-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX --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 68785685c781649dca8a870a36ccbd5837fb99f65c0418361b1a73f7848e1bda --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:55:06,980 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:55:07,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:55:07,064 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:55:07,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:55:07,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:55:07,097 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:55:07,097 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:55:07,098 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:55:07,099 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:55:07,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:55:07,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:55:07,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:55:07,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:55:07,102 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:55:07,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:55:07,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:55:07,103 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:55:07,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:55:07,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:55:07,105 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:55:07,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:55:07,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:55:07,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:55:07,107 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:55:07,108 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:55:07,108 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:55:07,109 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:55:07,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:55:07,110 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:55:07,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:55:07,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:55:07,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:55:07,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:55:07,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:55:07,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:55:07,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:55:07,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:55:07,115 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:55:07,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:55:07,116 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:55:07,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:55:07,117 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:55:07,117 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:55:07,118 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_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68785685c781649dca8a870a36ccbd5837fb99f65c0418361b1a73f7848e1bda [2024-11-08 18:55:07,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:55:07,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:55:07,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:55:07,552 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:55:07,553 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:55:07,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/array-multidimensional/min-2-u.c Unable to find full path for "g++" [2024-11-08 18:55:10,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:55:10,445 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:55:10,445 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/sv-benchmarks/c/array-multidimensional/min-2-u.c [2024-11-08 18:55:10,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/data/e8777ad77/6a5c6e1906ac40a386c149e1656fc080/FLAG3318539bc [2024-11-08 18:55:10,808 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/data/e8777ad77/6a5c6e1906ac40a386c149e1656fc080 [2024-11-08 18:55:10,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:55:10,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:55:10,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:55:10,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:55:10,824 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:55:10,825 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f00180b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:10, skipping insertion in model container [2024-11-08 18:55:10,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:55:10" (1/1) ... [2024-11-08 18:55:10,857 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:55:11,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:55:11,152 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:55:11,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:55:11,202 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:55:11,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11 WrapperNode [2024-11-08 18:55:11,203 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:55:11,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:55:11,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:55:11,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:55:11,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,248 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2024-11-08 18:55:11,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:55:11,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:55:11,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:55:11,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:55:11,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,270 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,290 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-08 18:55:11,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,306 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,310 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:55:11,311 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:55:11,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:55:11,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:55:11,313 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (1/1) ... [2024-11-08 18:55:11,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:55:11,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:11,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:55:11,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:55:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:55:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:55:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:55:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:55:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:55:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:55:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:55:11,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:55:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:55:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:55:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:55:11,509 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:55:11,512 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:55:11,850 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-08 18:55:11,850 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:55:11,878 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:55:11,878 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:55:11,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:55:11 BoogieIcfgContainer [2024-11-08 18:55:11,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:55:11,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:55:11,886 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:55:11,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:55:11,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:55:10" (1/3) ... [2024-11-08 18:55:11,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdf6645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:55:11, skipping insertion in model container [2024-11-08 18:55:11,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:55:11" (2/3) ... [2024-11-08 18:55:11,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cdf6645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:55:11, skipping insertion in model container [2024-11-08 18:55:11,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:55:11" (3/3) ... [2024-11-08 18:55:11,896 INFO L112 eAbstractionObserver]: Analyzing ICFG min-2-u.c [2024-11-08 18:55:11,914 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:55:11,915 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 18:55:11,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:55:11,995 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5479c5fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:55:11,996 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-08 18:55:12,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 48 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) [2024-11-08 18:55:12,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 18:55:12,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:12,009 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:55:12,009 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-08 18:55:12,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:12,017 INFO L85 PathProgramCache]: Analyzing trace with hash 889540874, now seen corresponding path program 1 times [2024-11-08 18:55:12,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:12,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069256767] [2024-11-08 18:55:12,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:12,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:12,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:55:12,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:12,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069256767] [2024-11-08 18:55:12,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069256767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:12,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:12,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:55:12,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42462835] [2024-11-08 18:55:12,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:12,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:55:12,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:55:12,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:55:12,449 INFO L87 Difference]: Start difference. First operand has 49 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 48 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) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-11-08 18:55:12,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:12,688 INFO L93 Difference]: Finished difference Result 111 states and 151 transitions. [2024-11-08 18:55:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:55:12,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 [2024-11-08 18:55:12,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:12,703 INFO L225 Difference]: With dead ends: 111 [2024-11-08 18:55:12,704 INFO L226 Difference]: Without dead ends: 58 [2024-11-08 18:55:12,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:55:12,711 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 66 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:12,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 60 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:55:12,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-08 18:55:12,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-08 18:55:12,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 57 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2024-11-08 18:55:12,767 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 6 [2024-11-08 18:55:12,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:12,768 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2024-11-08 18:55:12,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-11-08 18:55:12,769 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2024-11-08 18:55:12,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-08 18:55:12,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:12,771 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:12,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:55:12,772 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-08 18:55:12,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:12,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1923739983, now seen corresponding path program 1 times [2024-11-08 18:55:12,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:12,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654413001] [2024-11-08 18:55:12,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:12,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:12,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:55:12,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:12,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654413001] [2024-11-08 18:55:12,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654413001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:12,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:12,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:55:12,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045387127] [2024-11-08 18:55:12,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:12,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:55:12,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:12,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:55:12,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:12,910 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:13,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:13,027 INFO L93 Difference]: Finished difference Result 112 states and 136 transitions. [2024-11-08 18:55:13,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:55:13,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-11-08 18:55:13,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:13,032 INFO L225 Difference]: With dead ends: 112 [2024-11-08 18:55:13,032 INFO L226 Difference]: Without dead ends: 106 [2024-11-08 18:55:13,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:13,035 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 30 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:13,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 59 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:55:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-08 18:55:13,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2024-11-08 18:55:13,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 88 states have (on average 1.4772727272727273) internal successors, (130), 99 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:13,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 130 transitions. [2024-11-08 18:55:13,064 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 130 transitions. Word has length 10 [2024-11-08 18:55:13,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:13,064 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 130 transitions. [2024-11-08 18:55:13,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:13,065 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 130 transitions. [2024-11-08 18:55:13,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:55:13,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:13,066 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:13,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:55:13,067 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-08 18:55:13,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:13,068 INFO L85 PathProgramCache]: Analyzing trace with hash 493591873, now seen corresponding path program 1 times [2024-11-08 18:55:13,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:13,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759887661] [2024-11-08 18:55:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:13,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:13,203 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:55:13,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:13,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759887661] [2024-11-08 18:55:13,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759887661] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:13,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966352688] [2024-11-08 18:55:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:13,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:13,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:13,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:13,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:55:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:13,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:55:13,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:13,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:55:13,376 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:13,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966352688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:13,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:55:13,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-08 18:55:13,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723207368] [2024-11-08 18:55:13,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:13,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:55:13,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:13,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:55:13,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:55:13,381 INFO L87 Difference]: Start difference. First operand 100 states and 130 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:13,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:13,528 INFO L93 Difference]: Finished difference Result 100 states and 130 transitions. [2024-11-08 18:55:13,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:55:13,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2024-11-08 18:55:13,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:13,530 INFO L225 Difference]: With dead ends: 100 [2024-11-08 18:55:13,530 INFO L226 Difference]: Without dead ends: 97 [2024-11-08 18:55:13,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:55:13,532 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 21 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:13,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 81 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:55:13,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-08 18:55:13,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2024-11-08 18:55:13,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 96 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:13,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 124 transitions. [2024-11-08 18:55:13,546 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 124 transitions. Word has length 11 [2024-11-08 18:55:13,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:13,546 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 124 transitions. [2024-11-08 18:55:13,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:13,547 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 124 transitions. [2024-11-08 18:55:13,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 18:55:13,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:13,548 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:13,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:55:13,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:13,752 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-08 18:55:13,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:13,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1878521067, now seen corresponding path program 1 times [2024-11-08 18:55:13,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:13,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082456140] [2024-11-08 18:55:13,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:13,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:13,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:55:13,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:13,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082456140] [2024-11-08 18:55:13,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082456140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:13,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314494124] [2024-11-08 18:55:13,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:13,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:13,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:13,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:13,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:55:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:13,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:55:13,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:55:13,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:55:14,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314494124] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:55:14,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:55:14,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-08 18:55:14,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511456265] [2024-11-08 18:55:14,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:55:14,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:55:14,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:14,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:55:14,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:55:14,043 INFO L87 Difference]: Start difference. First operand 97 states and 124 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:14,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:14,231 INFO L93 Difference]: Finished difference Result 190 states and 274 transitions. [2024-11-08 18:55:14,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:55:14,232 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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 12 [2024-11-08 18:55:14,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:14,234 INFO L225 Difference]: With dead ends: 190 [2024-11-08 18:55:14,234 INFO L226 Difference]: Without dead ends: 187 [2024-11-08 18:55:14,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:55:14,236 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 80 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:14,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 67 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:55:14,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-08 18:55:14,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2024-11-08 18:55:14,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 178 states have (on average 1.4382022471910112) internal successors, (256), 186 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:14,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 256 transitions. [2024-11-08 18:55:14,259 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 256 transitions. Word has length 12 [2024-11-08 18:55:14,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:14,259 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 256 transitions. [2024-11-08 18:55:14,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:14,260 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 256 transitions. [2024-11-08 18:55:14,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 18:55:14,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:14,261 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 18:55:14,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:55:14,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:14,462 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-08 18:55:14,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:14,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1227077477, now seen corresponding path program 1 times [2024-11-08 18:55:14,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:14,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313876489] [2024-11-08 18:55:14,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:14,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:14,580 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:55:14,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:14,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313876489] [2024-11-08 18:55:14,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313876489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:14,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962203718] [2024-11-08 18:55:14,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:14,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:14,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:14,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:14,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:55:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:14,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:55:14,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:55:14,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:14,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:55:14,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962203718] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:55:14,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:55:14,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 10 [2024-11-08 18:55:14,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054117198] [2024-11-08 18:55:14,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:55:14,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:55:14,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:14,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:55:14,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:55:14,847 INFO L87 Difference]: Start difference. First operand 187 states and 256 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:15,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:15,534 INFO L93 Difference]: Finished difference Result 350 states and 477 transitions. [2024-11-08 18:55:15,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:55:15,535 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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 19 [2024-11-08 18:55:15,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:15,539 INFO L225 Difference]: With dead ends: 350 [2024-11-08 18:55:15,539 INFO L226 Difference]: Without dead ends: 187 [2024-11-08 18:55:15,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:55:15,542 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 370 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:15,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 44 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:55:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-08 18:55:15,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 184. [2024-11-08 18:55:15,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 178 states have (on average 1.1741573033707866) internal successors, (209), 183 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:15,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 209 transitions. [2024-11-08 18:55:15,569 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 209 transitions. Word has length 19 [2024-11-08 18:55:15,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:15,570 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 209 transitions. [2024-11-08 18:55:15,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:15,570 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 209 transitions. [2024-11-08 18:55:15,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 18:55:15,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:15,572 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1] [2024-11-08 18:55:15,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:15,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:15,777 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-08 18:55:15,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:15,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1034229194, now seen corresponding path program 2 times [2024-11-08 18:55:15,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:15,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963298929] [2024-11-08 18:55:15,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:15,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:15,952 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:55:15,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:15,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963298929] [2024-11-08 18:55:15,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963298929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:15,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149405588] [2024-11-08 18:55:15,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:55:15,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:15,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:15,958 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:15,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:55:16,049 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:55:16,050 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:55:16,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:55:16,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:16,135 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:55:16,136 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:16,214 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:55:16,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149405588] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:55:16,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:55:16,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-08 18:55:16,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982519123] [2024-11-08 18:55:16,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:55:16,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:55:16,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:16,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:55:16,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:55:16,217 INFO L87 Difference]: Start difference. First operand 184 states and 209 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:16,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:16,316 INFO L93 Difference]: Finished difference Result 184 states and 209 transitions. [2024-11-08 18:55:16,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:55:16,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 24 [2024-11-08 18:55:16,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:16,318 INFO L225 Difference]: With dead ends: 184 [2024-11-08 18:55:16,318 INFO L226 Difference]: Without dead ends: 181 [2024-11-08 18:55:16,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:55:16,322 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 46 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:16,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 54 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:55:16,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-08 18:55:16,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 157. [2024-11-08 18:55:16,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 154 states have (on average 1.1493506493506493) internal successors, (177), 156 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:16,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 177 transitions. [2024-11-08 18:55:16,361 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 177 transitions. Word has length 24 [2024-11-08 18:55:16,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:16,362 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 177 transitions. [2024-11-08 18:55:16,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:16,362 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 177 transitions. [2024-11-08 18:55:16,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-08 18:55:16,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:16,366 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 18:55:16,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:16,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 18:55:16,571 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-08 18:55:16,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:16,571 INFO L85 PathProgramCache]: Analyzing trace with hash -485858590, now seen corresponding path program 1 times [2024-11-08 18:55:16,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:16,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853090560] [2024-11-08 18:55:16,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:16,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-08 18:55:16,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:16,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853090560] [2024-11-08 18:55:16,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853090560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:16,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891133228] [2024-11-08 18:55:16,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:16,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:16,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:16,795 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:16,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:55:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:55:16,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 75 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:55:17,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:17,341 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 75 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 18:55:17,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891133228] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:55:17,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:55:17,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 8, 8] total 16 [2024-11-08 18:55:17,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975613891] [2024-11-08 18:55:17,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:55:17,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 18:55:17,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:17,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 18:55:17,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:55:17,347 INFO L87 Difference]: Start difference. First operand 157 states and 177 transitions. Second operand has 16 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:18,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:18,679 INFO L93 Difference]: Finished difference Result 638 states and 761 transitions. [2024-11-08 18:55:18,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-08 18:55:18,681 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 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 44 [2024-11-08 18:55:18,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:18,684 INFO L225 Difference]: With dead ends: 638 [2024-11-08 18:55:18,684 INFO L226 Difference]: Without dead ends: 502 [2024-11-08 18:55:18,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=643, Invalid=1163, Unknown=0, NotChecked=0, Total=1806 [2024-11-08 18:55:18,687 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 1606 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:18,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 64 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:55:18,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-08 18:55:18,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 502. [2024-11-08 18:55:18,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 499 states have (on average 1.1002004008016033) internal successors, (549), 501 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:18,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 549 transitions. [2024-11-08 18:55:18,761 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 549 transitions. Word has length 44 [2024-11-08 18:55:18,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:18,761 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 549 transitions. [2024-11-08 18:55:18,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.375) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:18,762 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 549 transitions. [2024-11-08 18:55:18,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 18:55:18,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:18,771 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 3, 3, 3, 3, 2, 1, 1, 1] [2024-11-08 18:55:18,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:55:18,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:18,972 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-08 18:55:18,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:18,972 INFO L85 PathProgramCache]: Analyzing trace with hash 60786765, now seen corresponding path program 2 times [2024-11-08 18:55:18,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:18,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455883964] [2024-11-08 18:55:18,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:18,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:19,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 0 proven. 848 refuted. 0 times theorem prover too weak. 997 trivial. 0 not checked. [2024-11-08 18:55:19,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:19,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455883964] [2024-11-08 18:55:19,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455883964] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:19,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808546475] [2024-11-08 18:55:19,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:55:19,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:19,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:19,264 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:19,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:55:19,389 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:55:19,389 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:55:19,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:55:19,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 0 proven. 848 refuted. 0 times theorem prover too weak. 997 trivial. 0 not checked. [2024-11-08 18:55:19,679 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1845 backedges. 0 proven. 848 refuted. 0 times theorem prover too weak. 997 trivial. 0 not checked. [2024-11-08 18:55:19,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808546475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:55:19,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:55:19,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-08 18:55:19,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273378545] [2024-11-08 18:55:19,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:55:19,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:55:19,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:19,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:55:19,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:55:19,973 INFO L87 Difference]: Start difference. First operand 502 states and 549 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:20,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:20,148 INFO L93 Difference]: Finished difference Result 502 states and 549 transitions. [2024-11-08 18:55:20,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:55:20,149 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 137 [2024-11-08 18:55:20,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:20,152 INFO L225 Difference]: With dead ends: 502 [2024-11-08 18:55:20,152 INFO L226 Difference]: Without dead ends: 501 [2024-11-08 18:55:20,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:55:20,154 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 40 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:20,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 83 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:55:20,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-08 18:55:20,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 411. [2024-11-08 18:55:20,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 409 states have (on average 1.1051344743276283) internal successors, (452), 410 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:20,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 452 transitions. [2024-11-08 18:55:20,187 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 452 transitions. Word has length 137 [2024-11-08 18:55:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:20,188 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 452 transitions. [2024-11-08 18:55:20,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:20,189 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 452 transitions. [2024-11-08 18:55:20,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-08 18:55:20,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:20,193 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-08 18:55:20,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:55:20,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:20,395 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-08 18:55:20,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:20,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1370043176, now seen corresponding path program 1 times [2024-11-08 18:55:20,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:20,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72977183] [2024-11-08 18:55:20,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:20,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:20,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2280 trivial. 0 not checked. [2024-11-08 18:55:20,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:20,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72977183] [2024-11-08 18:55:20,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72977183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:20,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:20,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:55:20,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329953172] [2024-11-08 18:55:20,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:20,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:55:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:55:20,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:20,611 INFO L87 Difference]: Start difference. First operand 411 states and 452 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:20,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:20,707 INFO L93 Difference]: Finished difference Result 820 states and 902 transitions. [2024-11-08 18:55:20,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:55:20,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 169 [2024-11-08 18:55:20,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:20,710 INFO L225 Difference]: With dead ends: 820 [2024-11-08 18:55:20,711 INFO L226 Difference]: Without dead ends: 456 [2024-11-08 18:55:20,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:55:20,713 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:20,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 52 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:55:20,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-08 18:55:20,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 413. [2024-11-08 18:55:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 411 states have (on average 1.1046228710462287) internal successors, (454), 412 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:20,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 454 transitions. [2024-11-08 18:55:20,747 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 454 transitions. Word has length 169 [2024-11-08 18:55:20,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:20,747 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 454 transitions. [2024-11-08 18:55:20,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:20,748 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 454 transitions. [2024-11-08 18:55:20,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-08 18:55:20,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:20,751 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 10, 10, 10, 10, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:20,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:55:20,751 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-08 18:55:20,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:20,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1638760435, now seen corresponding path program 1 times [2024-11-08 18:55:20,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:20,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303286390] [2024-11-08 18:55:20,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:20,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:21,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2471 backedges. 0 proven. 1048 refuted. 0 times theorem prover too weak. 1423 trivial. 0 not checked. [2024-11-08 18:55:21,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:21,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303286390] [2024-11-08 18:55:21,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303286390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:21,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872516882] [2024-11-08 18:55:21,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:21,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:21,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:21,154 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:21,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:55:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:21,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:55:21,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:21,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2471 backedges. 1 proven. 190 refuted. 0 times theorem prover too weak. 2280 trivial. 0 not checked. [2024-11-08 18:55:21,855 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:22,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2471 backedges. 1 proven. 190 refuted. 0 times theorem prover too weak. 2280 trivial. 0 not checked. [2024-11-08 18:55:22,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872516882] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:55:22,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:55:22,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 14, 14] total 28 [2024-11-08 18:55:22,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175461727] [2024-11-08 18:55:22,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:55:22,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-08 18:55:22,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:22,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-08 18:55:22,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=449, Unknown=0, NotChecked=0, Total=756 [2024-11-08 18:55:22,304 INFO L87 Difference]: Start difference. First operand 413 states and 454 transitions. Second operand has 28 states, 28 states have (on average 4.857142857142857) internal successors, (136), 28 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:24,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:24,694 INFO L93 Difference]: Finished difference Result 1355 states and 1572 transitions. [2024-11-08 18:55:24,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-08 18:55:24,695 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.857142857142857) internal successors, (136), 28 states have internal predecessors, (136), 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 214 [2024-11-08 18:55:24,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:24,696 INFO L225 Difference]: With dead ends: 1355 [2024-11-08 18:55:24,696 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:55:24,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1848, Invalid=3554, Unknown=0, NotChecked=0, Total=5402 [2024-11-08 18:55:24,700 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 1566 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:24,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 85 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:55:24,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:55:24,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:55:24,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:24,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:55:24,703 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 214 [2024-11-08 18:55:24,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:24,703 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:55:24,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.857142857142857) internal successors, (136), 28 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:55:24,703 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:55:24,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:55:24,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-11-08 18:55:24,707 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-11-08 18:55:24,708 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-11-08 18:55:24,708 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-11-08 18:55:24,708 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-11-08 18:55:24,708 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-11-08 18:55:24,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-11-08 18:55:24,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-11-08 18:55:24,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-11-08 18:55:24,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-11-08 18:55:24,710 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-11-08 18:55:24,710 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-11-08 18:55:24,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 18:55:24,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 18:55:24,914 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:24,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 18:55:28,900 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:55:28,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:55:28 BoogieIcfgContainer [2024-11-08 18:55:28,928 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:55:28,929 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:55:28,929 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:55:28,929 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:55:28,930 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:55:11" (3/4) ... [2024-11-08 18:55:28,933 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:55:28,945 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-08 18:55:28,946 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 18:55:28,946 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 18:55:28,946 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 18:55:29,111 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:55:29,112 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:55:29,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:55:29,113 INFO L158 Benchmark]: Toolchain (without parser) took 18299.34ms. Allocated memory was 142.6MB in the beginning and 264.2MB in the end (delta: 121.6MB). Free memory was 105.0MB in the beginning and 149.6MB in the end (delta: -44.6MB). Peak memory consumption was 80.1MB. Max. memory is 16.1GB. [2024-11-08 18:55:29,113 INFO L158 Benchmark]: CDTParser took 1.64ms. Allocated memory is still 100.7MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:55:29,114 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.87ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 92.6MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 18:55:29,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.34ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 90.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:55:29,114 INFO L158 Benchmark]: Boogie Preprocessor took 60.70ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:55:29,119 INFO L158 Benchmark]: RCFGBuilder took 567.96ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 74.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:55:29,120 INFO L158 Benchmark]: TraceAbstraction took 17042.08ms. Allocated memory was 142.6MB in the beginning and 264.2MB in the end (delta: 121.6MB). Free memory was 74.1MB in the beginning and 154.8MB in the end (delta: -80.7MB). Peak memory consumption was 124.1MB. Max. memory is 16.1GB. [2024-11-08 18:55:29,120 INFO L158 Benchmark]: Witness Printer took 183.66ms. Allocated memory is still 264.2MB. Free memory was 154.8MB in the beginning and 149.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 18:55:29,123 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.64ms. Allocated memory is still 100.7MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.87ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 92.6MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.34ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 90.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.70ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.96ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 74.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 17042.08ms. Allocated memory was 142.6MB in the beginning and 264.2MB in the end (delta: 121.6MB). Free memory was 74.1MB in the beginning and 154.8MB in the end (delta: -80.7MB). Peak memory consumption was 124.1MB. Max. memory is 16.1GB. * Witness Printer took 183.66ms. Allocated memory is still 264.2MB. Free memory was 154.8MB in the beginning and 149.6MB 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: 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: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: 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: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: 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: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: 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, 49 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 13.0s, OverallIterations: 10, TraceHistogramMax: 30, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3833 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3833 mSDsluCounter, 649 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 410 mSDsCounter, 485 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1340 IncrementalHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 485 mSolverCounterUnsat, 239 mSDtfsCounter, 1340 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1015 GetRequests, 860 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1800 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=502occurred in iteration=7, InterpolantAutomatonStates: 127, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 166 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1107 NumberOfCodeBlocks, 961 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1534 ConstructedInterpolants, 0 QuantifiedInterpolants, 3774 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1001 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 23 InterpolantComputations, 4 PerfectInterpolantSequences, 11634/15802 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 12 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: ((((((i == 0) && (j == 0)) && (n == 1500)) || (((((1 <= i) && (1 <= j)) && (i <= 1499)) && (j <= 2147483646)) && (n == 1500))) || ((((i == 0) && (1 <= j)) && (j <= 2147483646)) && (n == 1500))) || ((((1 <= i) && (i <= 1499)) && (j == 0)) && (n == 1500))) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: (((i == 0) && (n == 1500)) || ((1 <= i) && (n == 1500))) - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: ((((((i == 0) && (j == 0)) && (n == 1500)) || (((((1 <= i) && (1 <= j)) && (i <= 1499)) && (j <= 2147483646)) && (n == 1500))) || ((((i == 0) && (1 <= j)) && (j <= 2147483646)) && (n == 1500))) || ((((1 <= i) && (i <= 1499)) && (j == 0)) && (n == 1500))) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((((m <= 1000) && (i == 0)) || (((m <= 1000) && (1 <= i)) && (i <= 2147483646))) && (n == 1500)) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((m <= 1000) && (1 <= i)) && (1 <= j)) && (i <= 999)) && (j <= 2147483646)) || ((((m <= 1000) && (i == 0)) && (1 <= j)) && (j <= 2147483646))) && (n == 1500)) || ((((((m <= 1000) && (1 <= i)) && (i <= 999)) && (j == 0)) || (((m <= 1000) && (i == 0)) && (j == 0))) && (n == 1500))) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (((i == 0) && (n == 1500)) || ((1 <= i) && (n == 1500))) RESULT: Ultimate proved your program to be correct! [2024-11-08 18:55:29,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9278ccd3-e0fe-42cb-a0ec-6c11332edfa0/bin/uautomizer-verify-jihMAELWvX/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