./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya --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 679f2fe8d678884423b2dff47bf2c3c7ede0374b3a8bb68f9a9e8a332d8776ef --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:45:34,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:45:34,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 02:45:34,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:45:34,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:45:34,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:45:34,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:45:34,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:45:34,908 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:45:34,908 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:45:34,909 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:45:34,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:45:34,910 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:45:34,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:45:34,911 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:45:34,911 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:45:34,912 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:45:34,912 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:45:34,913 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:45:34,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:45:34,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:45:34,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:45:34,915 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:45:34,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:45:34,916 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:45:34,916 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:45:34,917 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:45:34,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:45:34,918 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:45:34,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:45:34,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:45:34,919 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:45:34,919 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:45:34,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:45:34,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:45:34,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:45:34,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:45:34,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:45:34,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:45:34,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:45:34,921 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:45:34,922 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:45:34,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:45:34,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:45:34,922 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_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 679f2fe8d678884423b2dff47bf2c3c7ede0374b3a8bb68f9a9e8a332d8776ef [2023-11-29 02:45:35,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:45:35,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:45:35,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:45:35,179 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:45:35,179 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:45:35,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/bitvector/gcd_4.c [2023-11-29 02:45:37,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:45:38,046 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:45:38,046 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/sv-benchmarks/c/bitvector/gcd_4.c [2023-11-29 02:45:38,052 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/data/95c207fec/10497f72ecca4b81bac3cba5d9051456/FLAG4d59ca823 [2023-11-29 02:45:38,064 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/data/95c207fec/10497f72ecca4b81bac3cba5d9051456 [2023-11-29 02:45:38,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:45:38,067 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:45:38,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:45:38,068 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:45:38,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:45:38,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c299685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38, skipping insertion in model container [2023-11-29 02:45:38,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,092 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:45:38,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:45:38,242 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:45:38,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:45:38,272 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:45:38,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38 WrapperNode [2023-11-29 02:45:38,272 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:45:38,273 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:45:38,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:45:38,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:45:38,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,302 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2023-11-29 02:45:38,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:45:38,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:45:38,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:45:38,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:45:38,313 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,313 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,315 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,326 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-29 02:45:38,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,333 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:45:38,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:45:38,338 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:45:38,338 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:45:38,339 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (1/1) ... [2023-11-29 02:45:38,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:45:38,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:45:38,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:45:38,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:45:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:45:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:45:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 02:45:38,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:45:38,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:45:38,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 02:45:38,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 02:45:38,468 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:45:38,470 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:45:38,612 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:45:38,640 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:45:38,640 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:45:38,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:45:38 BoogieIcfgContainer [2023-11-29 02:45:38,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:45:38,644 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:45:38,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:45:38,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:45:38,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:45:38" (1/3) ... [2023-11-29 02:45:38,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e926456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:45:38, skipping insertion in model container [2023-11-29 02:45:38,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:45:38" (2/3) ... [2023-11-29 02:45:38,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e926456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:45:38, skipping insertion in model container [2023-11-29 02:45:38,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:45:38" (3/3) ... [2023-11-29 02:45:38,650 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_4.c [2023-11-29 02:45:38,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:45:38,669 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 02:45:38,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:45:38,725 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b64442e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:45:38,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 02:45:38,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 20 states have (on average 1.75) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 02:45:38,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 02:45:38,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:38,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 02:45:38,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:38,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:38,742 INFO L85 PathProgramCache]: Analyzing trace with hash 109715, now seen corresponding path program 1 times [2023-11-29 02:45:38,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:38,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635813278] [2023-11-29 02:45:38,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:38,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:38,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:38,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:38,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635813278] [2023-11-29 02:45:38,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635813278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:45:38,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:45:38,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:45:38,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371933229] [2023-11-29 02:45:38,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:45:38,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:45:38,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:38,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:45:38,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:45:38,976 INFO L87 Difference]: Start difference. First operand has 33 states, 20 states have (on average 1.75) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:39,047 INFO L93 Difference]: Finished difference Result 72 states and 93 transitions. [2023-11-29 02:45:39,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:45:39,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 02:45:39,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:39,054 INFO L225 Difference]: With dead ends: 72 [2023-11-29 02:45:39,055 INFO L226 Difference]: Without dead ends: 28 [2023-11-29 02:45:39,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:45:39,060 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 20 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:39,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 29 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:45:39,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-29 02:45:39,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2023-11-29 02:45:39,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2023-11-29 02:45:39,089 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 3 [2023-11-29 02:45:39,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:39,089 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2023-11-29 02:45:39,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,089 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-29 02:45:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 02:45:39,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:39,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 02:45:39,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:45:39,090 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:39,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:39,091 INFO L85 PathProgramCache]: Analyzing trace with hash 3407226, now seen corresponding path program 1 times [2023-11-29 02:45:39,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:39,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58444201] [2023-11-29 02:45:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:39,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:39,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:39,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:39,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58444201] [2023-11-29 02:45:39,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58444201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:45:39,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:45:39,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:45:39,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280127257] [2023-11-29 02:45:39,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:45:39,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:45:39,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:39,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:45:39,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:45:39,158 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:39,195 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2023-11-29 02:45:39,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:45:39,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-29 02:45:39,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:39,197 INFO L225 Difference]: With dead ends: 39 [2023-11-29 02:45:39,197 INFO L226 Difference]: Without dead ends: 24 [2023-11-29 02:45:39,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:45:39,199 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:39,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:45:39,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-29 02:45:39,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 14. [2023-11-29 02:45:39,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 13 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) [2023-11-29 02:45:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2023-11-29 02:45:39,204 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2023-11-29 02:45:39,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:39,205 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2023-11-29 02:45:39,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,205 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2023-11-29 02:45:39,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 02:45:39,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:39,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:39,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 02:45:39,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:39,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:39,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1568640666, now seen corresponding path program 1 times [2023-11-29 02:45:39,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:39,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626201045] [2023-11-29 02:45:39,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:39,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:39,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:39,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626201045] [2023-11-29 02:45:39,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626201045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:45:39,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:45:39,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:45:39,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341354373] [2023-11-29 02:45:39,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:45:39,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:45:39,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:39,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:45:39,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:45:39,253 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:39,281 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2023-11-29 02:45:39,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:45:39,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 02:45:39,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:39,283 INFO L225 Difference]: With dead ends: 25 [2023-11-29 02:45:39,283 INFO L226 Difference]: Without dead ends: 15 [2023-11-29 02:45:39,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:45:39,285 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:39,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:45:39,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-29 02:45:39,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-29 02:45:39,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2023-11-29 02:45:39,290 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2023-11-29 02:45:39,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:39,290 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2023-11-29 02:45:39,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,291 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2023-11-29 02:45:39,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 02:45:39,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:39,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:39,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:45:39,292 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:39,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:39,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1383220317, now seen corresponding path program 1 times [2023-11-29 02:45:39,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:39,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919078662] [2023-11-29 02:45:39,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:39,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:39,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:39,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919078662] [2023-11-29 02:45:39,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919078662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:45:39,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:45:39,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:45:39,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724140193] [2023-11-29 02:45:39,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:45:39,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:45:39,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:39,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:45:39,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:45:39,371 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:39,452 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-11-29 02:45:39,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:45:39,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-29 02:45:39,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:39,454 INFO L225 Difference]: With dead ends: 26 [2023-11-29 02:45:39,454 INFO L226 Difference]: Without dead ends: 24 [2023-11-29 02:45:39,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:45:39,456 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:39,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:45:39,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-29 02:45:39,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2023-11-29 02:45:39,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2023-11-29 02:45:39,461 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 8 [2023-11-29 02:45:39,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:39,461 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2023-11-29 02:45:39,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,461 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2023-11-29 02:45:39,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 02:45:39,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:39,462 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:39,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:45:39,462 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:39,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:39,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1934638728, now seen corresponding path program 1 times [2023-11-29 02:45:39,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:39,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16385948] [2023-11-29 02:45:39,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:39,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:39,567 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:39,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:39,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16385948] [2023-11-29 02:45:39,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16385948] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:45:39,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271434307] [2023-11-29 02:45:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:39,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:39,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:45:39,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:45:39,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:45:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:39,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:45:39,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:39,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:39,727 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:45:39,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271434307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:45:39,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:45:39,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2023-11-29 02:45:39,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910570735] [2023-11-29 02:45:39,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:45:39,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:45:39,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:39,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:45:39,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:45:39,729 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:39,765 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2023-11-29 02:45:39,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:45:39,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 [2023-11-29 02:45:39,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:39,767 INFO L225 Difference]: With dead ends: 24 [2023-11-29 02:45:39,767 INFO L226 Difference]: Without dead ends: 23 [2023-11-29 02:45:39,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:45:39,768 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:39,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:45:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-29 02:45:39,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2023-11-29 02:45:39,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2023-11-29 02:45:39,773 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2023-11-29 02:45:39,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:39,774 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2023-11-29 02:45:39,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:39,774 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-29 02:45:39,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 02:45:39,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:39,775 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:39,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:45:39,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:39,977 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:39,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:39,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1934644686, now seen corresponding path program 1 times [2023-11-29 02:45:39,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:39,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704609647] [2023-11-29 02:45:39,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:39,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:40,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:40,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:40,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704609647] [2023-11-29 02:45:40,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704609647] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:45:40,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985941780] [2023-11-29 02:45:40,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:40,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:40,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:45:40,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:45:40,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:45:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:40,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:45:40,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:40,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:40,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:45:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:40,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985941780] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:45:40,206 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:45:40,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 7 [2023-11-29 02:45:40,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441145693] [2023-11-29 02:45:40,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:45:40,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:45:40,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:40,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:45:40,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:45:40,208 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 9 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:40,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:40,322 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2023-11-29 02:45:40,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:45:40,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 [2023-11-29 02:45:40,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:40,325 INFO L225 Difference]: With dead ends: 63 [2023-11-29 02:45:40,325 INFO L226 Difference]: Without dead ends: 55 [2023-11-29 02:45:40,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:45:40,327 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:40,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 0 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:45:40,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-29 02:45:40,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2023-11-29 02:45:40,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 49 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:40,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2023-11-29 02:45:40,337 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 12 [2023-11-29 02:45:40,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:40,337 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2023-11-29 02:45:40,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:40,337 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2023-11-29 02:45:40,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 02:45:40,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:40,338 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:40,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:45:40,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:40,543 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:40,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:40,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1240176920, now seen corresponding path program 1 times [2023-11-29 02:45:40,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:40,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293086267] [2023-11-29 02:45:40,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:40,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:40,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:40,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293086267] [2023-11-29 02:45:40,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293086267] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:45:40,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752915736] [2023-11-29 02:45:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:40,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:40,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:45:40,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:45:40,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:45:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:40,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:45:40,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:40,792 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:40,792 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:45:40,844 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:40,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752915736] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:45:40,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:45:40,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-11-29 02:45:40,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984784405] [2023-11-29 02:45:40,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:45:40,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 02:45:40,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:40,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 02:45:40,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:45:40,847 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:40,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:40,941 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2023-11-29 02:45:40,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:45:40,942 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 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 20 [2023-11-29 02:45:40,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:40,943 INFO L225 Difference]: With dead ends: 60 [2023-11-29 02:45:40,943 INFO L226 Difference]: Without dead ends: 36 [2023-11-29 02:45:40,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:45:40,944 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:40,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 4 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:45:40,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-29 02:45:40,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-29 02:45:40,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 35 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:40,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-11-29 02:45:40,951 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 20 [2023-11-29 02:45:40,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:40,951 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-11-29 02:45:40,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.363636363636363) internal successors, (48), 10 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:40,951 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-11-29 02:45:40,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 02:45:40,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:40,952 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:40,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 02:45:41,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:41,157 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:41,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:41,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1630530685, now seen corresponding path program 2 times [2023-11-29 02:45:41,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:41,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535184985] [2023-11-29 02:45:41,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:41,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:41,260 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:41,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:41,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535184985] [2023-11-29 02:45:41,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535184985] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:45:41,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331160219] [2023-11-29 02:45:41,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:45:41,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:41,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:45:41,262 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:45:41,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:45:41,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:45:41,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:45:41,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:45:41,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:41,487 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:45:41,617 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:41,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331160219] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:45:41,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:45:41,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 16 [2023-11-29 02:45:41,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746656132] [2023-11-29 02:45:41,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:45:41,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 02:45:41,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:41,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 02:45:41,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-11-29 02:45:41,619 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:42,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:42,201 INFO L93 Difference]: Finished difference Result 101 states and 123 transitions. [2023-11-29 02:45:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-29 02:45:42,201 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 states have internal predecessors, (72), 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 [2023-11-29 02:45:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:42,202 INFO L225 Difference]: With dead ends: 101 [2023-11-29 02:45:42,203 INFO L226 Difference]: Without dead ends: 83 [2023-11-29 02:45:42,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=267, Invalid=855, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:45:42,204 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 121 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:42,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 0 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:45:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-29 02:45:42,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2023-11-29 02:45:42,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 63 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:42,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2023-11-29 02:45:42,215 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 24 [2023-11-29 02:45:42,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:42,215 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2023-11-29 02:45:42,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.235294117647059) internal successors, (72), 17 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:42,215 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2023-11-29 02:45:42,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 02:45:42,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:42,216 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:42,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:45:42,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:42,420 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:42,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:42,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1630536643, now seen corresponding path program 1 times [2023-11-29 02:45:42,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:42,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169065229] [2023-11-29 02:45:42,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:42,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:42,496 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:45:42,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:42,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169065229] [2023-11-29 02:45:42,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169065229] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:45:42,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874950113] [2023-11-29 02:45:42,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:42,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:42,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:45:42,499 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:45:42,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:45:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:42,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:45:42,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:42,699 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:45:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:42,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874950113] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:45:42,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:45:42,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 14 [2023-11-29 02:45:42,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639566367] [2023-11-29 02:45:42,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:45:42,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:45:42,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:42,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:45:42,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:45:42,797 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:43,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:43,059 INFO L93 Difference]: Finished difference Result 142 states and 179 transitions. [2023-11-29 02:45:43,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:45:43,059 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 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 [2023-11-29 02:45:43,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:43,060 INFO L225 Difference]: With dead ends: 142 [2023-11-29 02:45:43,061 INFO L226 Difference]: Without dead ends: 141 [2023-11-29 02:45:43,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=339, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:45:43,062 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 85 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:43,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 0 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:45:43,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-29 02:45:43,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 122. [2023-11-29 02:45:43,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.25) internal successors, (150), 121 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:43,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2023-11-29 02:45:43,078 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 24 [2023-11-29 02:45:43,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:43,079 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2023-11-29 02:45:43,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 15 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:43,079 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2023-11-29 02:45:43,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 02:45:43,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:43,080 INFO L195 NwaCegarLoop]: trace histogram [9, 7, 7, 6, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-29 02:45:43,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:45:43,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:43,286 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:43,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:43,286 INFO L85 PathProgramCache]: Analyzing trace with hash 612823127, now seen corresponding path program 3 times [2023-11-29 02:45:43,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:43,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777182277] [2023-11-29 02:45:43,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:43,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:43,494 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-29 02:45:43,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:43,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777182277] [2023-11-29 02:45:43,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777182277] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:45:43,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187688167] [2023-11-29 02:45:43,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:45:43,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:43,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:45:43,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:45:43,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:45:43,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 02:45:43,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:45:43,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:45:43,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:43,629 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 02:45:43,629 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:45:43,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187688167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:45:43,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:45:43,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2023-11-29 02:45:43,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136293892] [2023-11-29 02:45:43,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:45:43,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:45:43,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:43,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:45:43,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:45:43,632 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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) [2023-11-29 02:45:43,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:43,669 INFO L93 Difference]: Finished difference Result 122 states and 150 transitions. [2023-11-29 02:45:43,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:45:43,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 40 [2023-11-29 02:45:43,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:43,671 INFO L225 Difference]: With dead ends: 122 [2023-11-29 02:45:43,671 INFO L226 Difference]: Without dead ends: 121 [2023-11-29 02:45:43,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:45:43,672 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:43,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:45:43,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-29 02:45:43,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 45. [2023-11-29 02:45:43,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 44 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:43,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2023-11-29 02:45:43,683 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 40 [2023-11-29 02:45:43,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:43,683 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2023-11-29 02:45:43,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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) [2023-11-29 02:45:43,684 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2023-11-29 02:45:43,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 02:45:43,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:45:43,685 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-11-29 02:45:43,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:45:43,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:43,888 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 02:45:43,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:45:43,889 INFO L85 PathProgramCache]: Analyzing trace with hash 489520425, now seen corresponding path program 2 times [2023-11-29 02:45:43,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:45:43,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072953295] [2023-11-29 02:45:43,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:45:43,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:45:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:45:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:45:44,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:45:44,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072953295] [2023-11-29 02:45:44,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072953295] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:45:44,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829704578] [2023-11-29 02:45:44,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:45:44,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:44,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:45:44,083 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:45:44,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:45:44,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:45:44,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:45:44,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 02:45:44,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:45:44,367 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:45:44,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:45:44,543 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 02:45:44,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829704578] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:45:44,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:45:44,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 24 [2023-11-29 02:45:44,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990184666] [2023-11-29 02:45:44,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:45:44,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 02:45:44,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:45:44,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 02:45:44,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:45:44,546 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 25 states, 25 states have (on average 4.2) internal successors, (105), 24 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:44,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:45:44,720 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2023-11-29 02:45:44,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 02:45:44,721 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.2) internal successors, (105), 24 states have internal predecessors, (105), 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 40 [2023-11-29 02:45:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:45:44,722 INFO L225 Difference]: With dead ends: 55 [2023-11-29 02:45:44,722 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 02:45:44,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2023-11-29 02:45:44,724 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:45:44,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 0 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:45:44,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 02:45:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 02:45:44,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:45:44,725 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2023-11-29 02:45:44,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:45:44,726 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:45:44,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.2) internal successors, (105), 24 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:45:44,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:45:44,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 02:45:44,729 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-29 02:45:44,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-29 02:45:44,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-29 02:45:44,730 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-29 02:45:44,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-29 02:45:44,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-29 02:45:44,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-29 02:45:44,731 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-29 02:45:44,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 02:45:44,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:45:44,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 02:45:45,071 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-29 02:45:45,071 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-11-29 02:45:45,071 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2023-11-29 02:45:45,071 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2023-11-29 02:45:45,071 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2023-11-29 02:45:45,071 INFO L899 garLoopResultBuilder]: For program point L23-3(lines 21 37) no Hoare annotation was computed. [2023-11-29 02:45:45,072 INFO L902 garLoopResultBuilder]: At program point L52(line 52) the Hoare annotation is: true [2023-11-29 02:45:45,072 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-29 02:45:45,072 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-11-29 02:45:45,072 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-29 02:45:45,072 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-29 02:45:45,072 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2023-11-29 02:45:45,072 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-11-29 02:45:45,072 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 02:45:45,072 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2023-11-29 02:45:45,072 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-29 02:45:45,073 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 35) no Hoare annotation was computed. [2023-11-29 02:45:45,073 INFO L899 garLoopResultBuilder]: For program point gcd_test_returnLabel#1(lines 20 37) no Hoare annotation was computed. [2023-11-29 02:45:45,073 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 02:45:45,073 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-29 02:45:45,073 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 34) no Hoare annotation was computed. [2023-11-29 02:45:45,073 INFO L895 garLoopResultBuilder]: At program point L30-2(lines 29 35) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_gcd_test_~a#1| 9)) (.cse1 (= |ULTIMATE.start_gcd_test_~b#1| 18))) (or (and .cse0 (= |ULTIMATE.start_gcd_test_~b#1| 9)) (and (= |ULTIMATE.start_gcd_test_~a#1| 27) .cse1) (and (= |ULTIMATE.start_gcd_test_~b#1| 0) (<= |ULTIMATE.start_gcd_test_~a#1| 2147483647) (<= 9 (+ |ULTIMATE.start_gcd_test_~b#1| |ULTIMATE.start_gcd_test_~a#1|))) (and (= |ULTIMATE.start_gcd_test_~a#1| 63) .cse1) (and (= |ULTIMATE.start_gcd_test_~a#1| 45) .cse1) (and .cse0 .cse1))) [2023-11-29 02:45:45,073 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-11-29 02:45:45,074 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-11-29 02:45:45,074 INFO L899 garLoopResultBuilder]: For program point L22-2(line 22) no Hoare annotation was computed. [2023-11-29 02:45:45,074 INFO L902 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: true [2023-11-29 02:45:45,074 INFO L899 garLoopResultBuilder]: For program point L22-4(lines 21 37) no Hoare annotation was computed. [2023-11-29 02:45:45,074 INFO L902 garLoopResultBuilder]: At program point L51-1(line 51) the Hoare annotation is: true [2023-11-29 02:45:45,074 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-29 02:45:45,074 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-11-29 02:45:45,075 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 19) no Hoare annotation was computed. [2023-11-29 02:45:45,075 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 19) no Hoare annotation was computed. [2023-11-29 02:45:45,075 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 19) the Hoare annotation is: true [2023-11-29 02:45:45,078 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 02:45:45,080 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:45:45,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:45:45 BoogieIcfgContainer [2023-11-29 02:45:45,091 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:45:45,092 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:45:45,092 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:45:45,092 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:45:45,092 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:45:38" (3/4) ... [2023-11-29 02:45:45,094 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:45:45,098 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 02:45:45,102 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-29 02:45:45,102 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-29 02:45:45,102 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 02:45:45,103 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 02:45:45,103 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 02:45:45,187 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:45:45,188 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:45:45,188 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:45:45,189 INFO L158 Benchmark]: Toolchain (without parser) took 7122.00ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 114.6MB in the beginning and 104.7MB in the end (delta: 9.9MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2023-11-29 02:45:45,189 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:45:45,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.13ms. Allocated memory is still 157.3MB. Free memory was 114.6MB in the beginning and 104.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:45:45,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.27ms. Allocated memory is still 157.3MB. Free memory was 104.1MB in the beginning and 102.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:45:45,190 INFO L158 Benchmark]: Boogie Preprocessor took 33.36ms. Allocated memory is still 157.3MB. Free memory was 102.6MB in the beginning and 100.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:45:45,191 INFO L158 Benchmark]: RCFGBuilder took 303.59ms. Allocated memory is still 157.3MB. Free memory was 100.5MB in the beginning and 88.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 02:45:45,191 INFO L158 Benchmark]: TraceAbstraction took 6447.22ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 87.3MB in the beginning and 109.9MB in the end (delta: -22.6MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-11-29 02:45:45,191 INFO L158 Benchmark]: Witness Printer took 96.54ms. Allocated memory is still 195.0MB. Free memory was 109.9MB in the beginning and 104.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:45:45,193 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.13ms. Allocated memory is still 157.3MB. Free memory was 114.6MB in the beginning and 104.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.27ms. Allocated memory is still 157.3MB. Free memory was 104.1MB in the beginning and 102.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.36ms. Allocated memory is still 157.3MB. Free memory was 102.6MB in the beginning and 100.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.59ms. Allocated memory is still 157.3MB. Free memory was 100.5MB in the beginning and 88.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6447.22ms. Allocated memory was 157.3MB in the beginning and 195.0MB in the end (delta: 37.7MB). Free memory was 87.3MB in the beginning and 109.9MB in the end (delta: -22.6MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 96.54ms. Allocated memory is still 195.0MB. Free memory was 109.9MB in the beginning and 104.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: 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 2 procedures, 33 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 11, TraceHistogramMax: 9, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 364 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 125 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 983 IncrementalHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 125 mSolverCounterUnsat, 30 mSDtfsCounter, 983 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=9, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 152 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 10 PreInvPairs, 20 NumberOfFragments, 52 HoareAnnotationTreeSize, 10 FomulaSimplifications, 458 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 81 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 366 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 463 ConstructedInterpolants, 0 QuantifiedInterpolants, 2813 SizeOfPredicates, 28 NumberOfNonLiveVariables, 548 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 23 InterpolantComputations, 6 PerfectInterpolantSequences, 288/792 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 8 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((a == 9) && (b == 9)) || ((a == 27) && (b == 18))) || (((b == 0) && (a <= 2147483647)) && (9 <= (b + a)))) || ((a == 63) && (b == 18))) || ((a == 45) && (b == 18))) || ((a == 9) && (b == 18))) RESULT: Ultimate proved your program to be correct! [2023-11-29 02:45:45,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e851162-2eef-44e6-af81-1d6f3736d4cf/bin/uautomizer-verify-BQ2R08f2Ya/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