./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/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_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/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_2e87444f-f892-48eb-9ee1-ec332be9305b/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 6518e3283e254ed16f96ad802609fc9f9c972959c7f4631066de203a846c5b0d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:45:58,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:45:58,751 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:45:58,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:45:58,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:45:58,780 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:45:58,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:45:58,781 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:45:58,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:45:58,782 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:45:58,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:45:58,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:45:58,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:45:58,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:45:58,785 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:45:58,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:45:58,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:45:58,787 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:45:58,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:45:58,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:45:58,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:45:58,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:45:58,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:45:58,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:45:58,790 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:45:58,791 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:45:58,791 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:45:58,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:45:58,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:45:58,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:45:58,793 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:45:58,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:45:58,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:45:58,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:45:58,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:45:58,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:45:58,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:45:58,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:45:58,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:45:58,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:45:58,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:45:58,796 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:45:58,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:45:58,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:45:58,796 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_2e87444f-f892-48eb-9ee1-ec332be9305b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6518e3283e254ed16f96ad802609fc9f9c972959c7f4631066de203a846c5b0d [2023-11-29 04:45:58,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:45:59,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:45:59,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:45:59,038 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:45:59,038 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:45:59,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound5.c [2023-11-29 04:46:01,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:46:01,886 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:46:01,886 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound5.c [2023-11-29 04:46:01,892 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/data/bbf35d40a/e986d6ff5e074320a57c8aaaa0adf099/FLAG96291c008 [2023-11-29 04:46:01,906 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/data/bbf35d40a/e986d6ff5e074320a57c8aaaa0adf099 [2023-11-29 04:46:01,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:46:01,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:46:01,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:46:01,912 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:46:01,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:46:01,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:46:01" (1/1) ... [2023-11-29 04:46:01,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6581a711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:01, skipping insertion in model container [2023-11-29 04:46:01,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:46:01" (1/1) ... [2023-11-29 04:46:01,965 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:46:02,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:46:02,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:46:02,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:46:02,150 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:46:02,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02 WrapperNode [2023-11-29 04:46:02,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:46:02,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:46:02,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:46:02,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:46:02,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,185 INFO L138 Inliner]: procedures = 14, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2023-11-29 04:46:02,185 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:46:02,186 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:46:02,186 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:46:02,186 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:46:02,197 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,198 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,208 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2023-11-29 04:46:02,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:46:02,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:46:02,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:46:02,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:46:02,219 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (1/1) ... [2023-11-29 04:46:02,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:46:02,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:02,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:46:02,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:46:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:46:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 04:46:02,283 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 04:46:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:46:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:46:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:46:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:46:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:46:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:46:02,356 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:46:02,358 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:46:02,497 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:46:02,523 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:46:02,523 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:46:02,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:46:02 BoogieIcfgContainer [2023-11-29 04:46:02,524 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:46:02,526 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:46:02,526 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:46:02,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:46:02,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:46:01" (1/3) ... [2023-11-29 04:46:02,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f67ff7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:46:02, skipping insertion in model container [2023-11-29 04:46:02,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:46:02" (2/3) ... [2023-11-29 04:46:02,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f67ff7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:46:02, skipping insertion in model container [2023-11-29 04:46:02,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:46:02" (3/3) ... [2023-11-29 04:46:02,532 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm2_unwindbound5.c [2023-11-29 04:46:02,551 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:46:02,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 04:46:02,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:46:02,605 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;@14bb6033, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:46:02,606 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 04:46:02,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 17 states have internal predecessors, (23), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 04:46:02,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 04:46:02,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:46:02,618 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:46:02,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:46:02,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:02,624 INFO L85 PathProgramCache]: Analyzing trace with hash 838352470, now seen corresponding path program 1 times [2023-11-29 04:46:02,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:02,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759223346] [2023-11-29 04:46:02,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:02,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:02,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:46:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:02,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 04:46:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 04:46:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 04:46:02,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:46:02,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:02,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759223346] [2023-11-29 04:46:02,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759223346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:46:02,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:46:02,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:46:02,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89836301] [2023-11-29 04:46:02,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:46:02,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:46:02,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:02,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:46:02,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:46:02,843 INFO L87 Difference]: Start difference. First operand has 26 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 17 states have internal predecessors, (23), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:46:02,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:02,869 INFO L93 Difference]: Finished difference Result 50 states and 73 transitions. [2023-11-29 04:46:02,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:46:02,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 24 [2023-11-29 04:46:02,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:46:02,879 INFO L225 Difference]: With dead ends: 50 [2023-11-29 04:46:02,879 INFO L226 Difference]: Without dead ends: 23 [2023-11-29 04:46:02,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:46:02,886 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:46:02,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:46:02,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-29 04:46:02,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-29 04:46:02,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 04:46:02,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-11-29 04:46:02,922 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 24 [2023-11-29 04:46:02,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:46:02,923 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-11-29 04:46:02,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 04:46:02,923 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-11-29 04:46:02,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 04:46:02,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:46:02,925 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:46:02,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:46:02,926 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:46:02,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:02,927 INFO L85 PathProgramCache]: Analyzing trace with hash 998308822, now seen corresponding path program 1 times [2023-11-29 04:46:02,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:02,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316996990] [2023-11-29 04:46:02,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:02,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:03,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:46:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:03,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 04:46:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:03,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 04:46:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:03,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-29 04:46:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:03,120 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:46:03,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:03,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316996990] [2023-11-29 04:46:03,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316996990] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:46:03,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:46:03,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:46:03,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796880748] [2023-11-29 04:46:03,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:46:03,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:46:03,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:03,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:46:03,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:46:03,124 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:46:03,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:03,169 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2023-11-29 04:46:03,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:46:03,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 24 [2023-11-29 04:46:03,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:46:03,170 INFO L225 Difference]: With dead ends: 29 [2023-11-29 04:46:03,171 INFO L226 Difference]: Without dead ends: 27 [2023-11-29 04:46:03,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 04:46:03,172 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:46:03,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 53 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:46:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-29 04:46:03,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2023-11-29 04:46:03,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 04:46:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-11-29 04:46:03,181 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 24 [2023-11-29 04:46:03,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:46:03,182 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-11-29 04:46:03,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:46:03,183 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-11-29 04:46:03,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 04:46:03,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:46:03,184 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:46:03,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:46:03,184 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:46:03,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:03,185 INFO L85 PathProgramCache]: Analyzing trace with hash 32842627, now seen corresponding path program 1 times [2023-11-29 04:46:03,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:03,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022626990] [2023-11-29 04:46:03,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:03,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:03,207 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:46:03,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1399925430] [2023-11-29 04:46:03,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:03,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:03,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:03,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:46:03,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:46:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:03,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:46:03,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:03,397 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:46:03,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:46:03,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:03,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022626990] [2023-11-29 04:46:03,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:46:03,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399925430] [2023-11-29 04:46:03,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399925430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:46:03,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:46:03,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:46:03,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891020762] [2023-11-29 04:46:03,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:46:03,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:46:03,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:03,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:46:03,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:46:03,401 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 04:46:03,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:03,460 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2023-11-29 04:46:03,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:46:03,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2023-11-29 04:46:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:46:03,461 INFO L225 Difference]: With dead ends: 27 [2023-11-29 04:46:03,462 INFO L226 Difference]: Without dead ends: 26 [2023-11-29 04:46:03,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:46:03,463 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 10 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:46:03,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 64 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:46:03,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-29 04:46:03,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2023-11-29 04:46:03,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 04:46:03,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2023-11-29 04:46:03,471 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 35 [2023-11-29 04:46:03,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:46:03,472 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-11-29 04:46:03,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 04:46:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-29 04:46:03,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-29 04:46:03,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:46:03,474 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:46:03,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:03,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:03,675 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:46:03,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1018121483, now seen corresponding path program 1 times [2023-11-29 04:46:03,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:03,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299191213] [2023-11-29 04:46:03,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:03,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:03,690 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:46:03,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1635799523] [2023-11-29 04:46:03,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:03,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:03,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:03,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:46:03,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:46:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:46:03,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:46:03,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:46:03,823 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:46:03,906 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:46:03,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:03,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299191213] [2023-11-29 04:46:03,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:46:03,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635799523] [2023-11-29 04:46:03,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635799523] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:46:03,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:46:03,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 04:46:03,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143305082] [2023-11-29 04:46:03,908 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:46:03,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:46:03,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:03,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:46:03,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:46:03,911 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 04:46:04,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:04,056 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2023-11-29 04:46:04,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:46:04,056 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 36 [2023-11-29 04:46:04,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:46:04,058 INFO L225 Difference]: With dead ends: 59 [2023-11-29 04:46:04,058 INFO L226 Difference]: Without dead ends: 58 [2023-11-29 04:46:04,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:46:04,059 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 41 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:46:04,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 70 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:46:04,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-29 04:46:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-29 04:46:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 44 states have internal predecessors, (49), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:46:04,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 65 transitions. [2023-11-29 04:46:04,071 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 65 transitions. Word has length 36 [2023-11-29 04:46:04,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:46:04,071 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 65 transitions. [2023-11-29 04:46:04,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 04:46:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 65 transitions. [2023-11-29 04:46:04,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 04:46:04,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:46:04,074 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:46:04,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:46:04,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:04,277 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:46:04,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:04,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1985094824, now seen corresponding path program 2 times [2023-11-29 04:46:04,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:04,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173963688] [2023-11-29 04:46:04,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:04,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:04,297 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:46:04,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675233334] [2023-11-29 04:46:04,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:46:04,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:04,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:04,299 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:46:04,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:46:04,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:46:04,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:46:04,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:46:04,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:04,563 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:46:04,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:46:04,766 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-29 04:46:04,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:04,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173963688] [2023-11-29 04:46:04,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:46:04,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675233334] [2023-11-29 04:46:04,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675233334] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:46:04,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:46:04,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2023-11-29 04:46:04,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176381321] [2023-11-29 04:46:04,768 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:46:04,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 04:46:04,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:04,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 04:46:04,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:46:04,770 INFO L87 Difference]: Start difference. First operand 58 states and 65 transitions. Second operand has 22 states, 21 states have (on average 3.761904761904762) internal successors, (79), 22 states have internal predecessors, (79), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-11-29 04:46:05,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:05,179 INFO L93 Difference]: Finished difference Result 125 states and 143 transitions. [2023-11-29 04:46:05,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 04:46:05,180 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.761904761904762) internal successors, (79), 22 states have internal predecessors, (79), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 69 [2023-11-29 04:46:05,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:46:05,182 INFO L225 Difference]: With dead ends: 125 [2023-11-29 04:46:05,182 INFO L226 Difference]: Without dead ends: 124 [2023-11-29 04:46:05,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2023-11-29 04:46:05,185 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 121 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:46:05,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 167 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:46:05,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2023-11-29 04:46:05,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2023-11-29 04:46:05,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 98 states have (on average 1.1122448979591837) internal successors, (109), 98 states have internal predecessors, (109), 14 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 04:46:05,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 137 transitions. [2023-11-29 04:46:05,205 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 137 transitions. Word has length 69 [2023-11-29 04:46:05,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:46:05,206 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 137 transitions. [2023-11-29 04:46:05,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.761904761904762) internal successors, (79), 22 states have internal predecessors, (79), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-11-29 04:46:05,206 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 137 transitions. [2023-11-29 04:46:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 04:46:05,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:46:05,209 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:46:05,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 04:46:05,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:05,410 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 04:46:05,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:46:05,411 INFO L85 PathProgramCache]: Analyzing trace with hash -686009928, now seen corresponding path program 3 times [2023-11-29 04:46:05,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:46:05,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167257772] [2023-11-29 04:46:05,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:46:05,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:46:05,441 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:46:05,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196444954] [2023-11-29 04:46:05,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:46:05,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:46:05,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:46:05,443 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:46:05,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:46:05,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 04:46:05,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:46:05,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:46:05,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:46:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2023-11-29 04:46:05,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:46:05,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:46:05,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167257772] [2023-11-29 04:46:05,567 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:46:05,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196444954] [2023-11-29 04:46:05,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196444954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:46:05,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:46:05,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:46:05,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316390913] [2023-11-29 04:46:05,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:46:05,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:46:05,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:46:05,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:46:05,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:46:05,570 INFO L87 Difference]: Start difference. First operand 124 states and 137 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:46:05,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:46:05,610 INFO L93 Difference]: Finished difference Result 124 states and 137 transitions. [2023-11-29 04:46:05,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:46:05,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 135 [2023-11-29 04:46:05,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:46:05,612 INFO L225 Difference]: With dead ends: 124 [2023-11-29 04:46:05,612 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 04:46:05,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:46:05,615 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:46:05,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 50 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:46:05,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 04:46:05,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 04:46:05,616 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 04:46:05,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 04:46:05,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2023-11-29 04:46:05,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:46:05,617 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:46:05,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 04:46:05,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 04:46:05,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 04:46:05,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 04:46:05,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 04:46:05,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:46:05,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 04:46:05,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 04:46:05,907 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-29 04:46:05,908 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 04:46:05,908 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-11-29 04:46:05,908 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (= ~counter~0 0) [2023-11-29 04:46:05,909 INFO L895 garLoopResultBuilder]: At program point L25-1(line 25) the Hoare annotation is: (= ~counter~0 0) [2023-11-29 04:46:05,909 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 48) no Hoare annotation was computed. [2023-11-29 04:46:05,909 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 04:46:05,909 INFO L895 garLoopResultBuilder]: At program point L42-2(lines 36 49) the Hoare annotation is: (or (and (<= 1 ~counter~0) (<= ~counter~0 5)) (= ~counter~0 0)) [2023-11-29 04:46:05,909 INFO L899 garLoopResultBuilder]: For program point L36-1(line 36) no Hoare annotation was computed. [2023-11-29 04:46:05,909 INFO L899 garLoopResultBuilder]: For program point L36-2(line 36) no Hoare annotation was computed. [2023-11-29 04:46:05,910 INFO L899 garLoopResultBuilder]: For program point L36-3(lines 36 49) no Hoare annotation was computed. [2023-11-29 04:46:05,910 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) no Hoare annotation was computed. [2023-11-29 04:46:05,910 INFO L902 garLoopResultBuilder]: At program point L36-5(lines 36 49) the Hoare annotation is: true [2023-11-29 04:46:05,910 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (= ~counter~0 0) [2023-11-29 04:46:05,910 INFO L895 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: (= ~counter~0 0) [2023-11-29 04:46:05,910 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2023-11-29 04:46:05,910 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (and (<= 1 ~counter~0) (<= ~counter~0 5)) [2023-11-29 04:46:05,910 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 36 49) no Hoare annotation was computed. [2023-11-29 04:46:05,911 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2023-11-29 04:46:05,911 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2023-11-29 04:46:05,911 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2023-11-29 04:46:05,911 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2023-11-29 04:46:05,911 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-11-29 04:46:05,911 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-11-29 04:46:05,911 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-11-29 04:46:05,911 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-11-29 04:46:05,914 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2023-11-29 04:46:05,916 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:46:05,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:46:05 BoogieIcfgContainer [2023-11-29 04:46:05,926 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:46:05,927 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:46:05,927 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:46:05,927 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:46:05,928 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:46:02" (3/4) ... [2023-11-29 04:46:05,930 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 04:46:05,933 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 04:46:05,933 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 04:46:05,937 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-29 04:46:05,938 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 04:46:05,938 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 04:46:05,938 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:46:05,938 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:46:06,011 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:46:06,011 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 04:46:06,012 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:46:06,012 INFO L158 Benchmark]: Toolchain (without parser) took 4102.69ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 74.3MB in the beginning and 90.7MB in the end (delta: -16.3MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2023-11-29 04:46:06,013 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory was 113.7MB in the beginning and 113.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:46:06,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.78ms. Allocated memory is still 138.4MB. Free memory was 74.2MB in the beginning and 103.3MB in the end (delta: -29.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:46:06,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.17ms. Allocated memory is still 138.4MB. Free memory was 102.9MB in the beginning and 101.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:46:06,014 INFO L158 Benchmark]: Boogie Preprocessor took 31.36ms. Allocated memory is still 138.4MB. Free memory was 101.5MB in the beginning and 99.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:46:06,015 INFO L158 Benchmark]: RCFGBuilder took 305.84ms. Allocated memory is still 138.4MB. Free memory was 99.9MB in the beginning and 87.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 04:46:06,015 INFO L158 Benchmark]: TraceAbstraction took 3399.99ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 86.8MB in the beginning and 94.8MB in the end (delta: -8.0MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2023-11-29 04:46:06,015 INFO L158 Benchmark]: Witness Printer took 85.03ms. Allocated memory is still 169.9MB. Free memory was 94.8MB in the beginning and 90.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:46:06,018 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory was 113.7MB in the beginning and 113.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.78ms. Allocated memory is still 138.4MB. Free memory was 74.2MB in the beginning and 103.3MB in the end (delta: -29.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.17ms. Allocated memory is still 138.4MB. Free memory was 102.9MB in the beginning and 101.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.36ms. Allocated memory is still 138.4MB. Free memory was 101.5MB in the beginning and 99.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 305.84ms. Allocated memory is still 138.4MB. Free memory was 99.9MB in the beginning and 87.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3399.99ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 86.8MB in the beginning and 94.8MB in the end (delta: -8.0MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Witness Printer took 85.03ms. Allocated memory is still 169.9MB. Free memory was 94.8MB in the beginning and 90.7MB in the end (delta: 4.2MB). 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: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 434 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 300 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 210 IncrementalHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 134 mSDtfsCounter, 210 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 430 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=5, InterpolantAutomatonStates: 65, 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 27 PreInvPairs, 52 NumberOfFragments, 33 HoareAnnotationTreeSize, 27 FomulaSimplifications, 271 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 218 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 323 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 834 SizeOfPredicates, 16 NumberOfNonLiveVariables, 475 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 743/881 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 2 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((1 <= counter) && (counter <= 5)) || (counter == 0)) RESULT: Ultimate proved your program to be correct! [2023-11-29 04:46:06,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e87444f-f892-48eb-9ee1-ec332be9305b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE