./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/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_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/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_6a70c34e-4863-40bc-8ecd-adef65394e43/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 6733f5cb9fc343de68240fd800b3186de8da0c1fcb51c576de9d571eaa34d1a7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:27:23,677 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:27:23,760 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:27:23,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:27:23,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:27:23,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:27:23,787 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:27:23,787 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:27:23,788 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:27:23,788 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:27:23,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:27:23,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:27:23,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:27:23,791 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:27:23,791 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:27:23,792 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:27:23,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:27:23,793 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:27:23,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:27:23,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:27:23,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:27:23,796 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:27:23,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:27:23,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:27:23,797 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:27:23,797 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:27:23,798 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:27:23,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:27:23,798 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:27:23,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:27:23,799 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:27:23,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:27:23,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:27:23,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:27:23,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:27:23,801 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:27:23,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:27:23,801 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:27:23,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:27:23,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:27:23,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:27:23,802 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:27:23,802 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:27:23,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:27:23,803 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_6a70c34e-4863-40bc-8ecd-adef65394e43/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6733f5cb9fc343de68240fd800b3186de8da0c1fcb51c576de9d571eaa34d1a7 [2023-11-29 04:27:24,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:27:24,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:27:24,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:27:24,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:27:24,047 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:27:24,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c [2023-11-29 04:27:26,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:27:26,941 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:27:26,941 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/sv-benchmarks/c/nla-digbench-scaling/freire1_unwindbound10.c [2023-11-29 04:27:26,947 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/data/27ffaafea/cca88ea088b14d5f92eb9de86fb88ba7/FLAGa2d63b4c2 [2023-11-29 04:27:26,958 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/data/27ffaafea/cca88ea088b14d5f92eb9de86fb88ba7 [2023-11-29 04:27:26,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:27:26,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:27:26,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:27:26,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:27:26,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:27:26,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:27:26" (1/1) ... [2023-11-29 04:27:26,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fef0608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:26, skipping insertion in model container [2023-11-29 04:27:26,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:27:26" (1/1) ... [2023-11-29 04:27:26,987 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:27:27,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:27:27,124 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:27:27,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:27:27,153 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:27:27,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27 WrapperNode [2023-11-29 04:27:27,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:27:27,154 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:27:27,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:27:27,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:27:27,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,180 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-11-29 04:27:27,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:27:27,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:27:27,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:27:27,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:27:27,190 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,192 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,202 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:27:27,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,203 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,210 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:27:27,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:27:27,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:27:27,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:27:27,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (1/1) ... [2023-11-29 04:27:27,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:27:27,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:27,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:27:27,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:27:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:27:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:27:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:27:27,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:27:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:27:27,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:27:27,327 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:27:27,329 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:27:27,462 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:27:27,482 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:27:27,482 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:27:27,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:27:27 BoogieIcfgContainer [2023-11-29 04:27:27,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:27:27,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:27:27,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:27:27,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:27:27,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:27:26" (1/3) ... [2023-11-29 04:27:27,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea5bc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:27:27, skipping insertion in model container [2023-11-29 04:27:27,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:27:27" (2/3) ... [2023-11-29 04:27:27,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea5bc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:27:27, skipping insertion in model container [2023-11-29 04:27:27,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:27:27" (3/3) ... [2023-11-29 04:27:27,493 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_unwindbound10.c [2023-11-29 04:27:27,512 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:27:27,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 04:27:27,561 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:27:27,567 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;@41441386, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:27:27,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 04:27:27,570 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 16 states have (on average 1.75) internal successors, (28), 24 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:27,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 04:27:27,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:27,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 04:27:27,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:27,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:27,582 INFO L85 PathProgramCache]: Analyzing trace with hash 88477, now seen corresponding path program 1 times [2023-11-29 04:27:27,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:27,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598676768] [2023-11-29 04:27:27,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:27,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:27,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:27,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:27,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598676768] [2023-11-29 04:27:27,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598676768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:27,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:27,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:27:27,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248181714] [2023-11-29 04:27:27,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:27,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:27:27,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:27,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:27:27,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:27:27,758 INFO L87 Difference]: Start difference. First operand has 28 states, 16 states have (on average 1.75) internal successors, (28), 24 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:27,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:27,785 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2023-11-29 04:27:27,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:27:27,787 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 04:27:27,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:27,793 INFO L225 Difference]: With dead ends: 53 [2023-11-29 04:27:27,793 INFO L226 Difference]: Without dead ends: 23 [2023-11-29 04:27:27,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 04:27:27,798 INFO L413 NwaCegarLoop]: 26 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, 26 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 04:27:27,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:27,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-29 04:27:27,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-29 04:27:27,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 20 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:27:27,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-11-29 04:27:27,827 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 3 [2023-11-29 04:27:27,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:27,828 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-11-29 04:27:27,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:27,828 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-11-29 04:27:27,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 04:27:27,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:27,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 04:27:27,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:27:27,830 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:27,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:27,831 INFO L85 PathProgramCache]: Analyzing trace with hash 87676, now seen corresponding path program 1 times [2023-11-29 04:27:27,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:27,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285982139] [2023-11-29 04:27:27,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:27,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:27,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:27,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:27,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285982139] [2023-11-29 04:27:27,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285982139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:27,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:27,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:27:27,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673368810] [2023-11-29 04:27:27,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:27,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:27:27,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:27,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:27:27,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:27:27,911 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:27,963 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2023-11-29 04:27:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:27:27,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 04:27:27,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:27,964 INFO L225 Difference]: With dead ends: 32 [2023-11-29 04:27:27,965 INFO L226 Difference]: Without dead ends: 27 [2023-11-29 04:27:27,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:27:27,967 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:27,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 55 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:27,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-29 04:27:27,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-29 04:27:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.368421052631579) internal successors, (26), 24 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:27:27,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2023-11-29 04:27:27,974 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 3 [2023-11-29 04:27:27,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:27,974 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2023-11-29 04:27:27,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:27,974 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2023-11-29 04:27:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 04:27:27,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:27,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:27,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:27:27,976 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:27,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:27,976 INFO L85 PathProgramCache]: Analyzing trace with hash -632484253, now seen corresponding path program 1 times [2023-11-29 04:27:27,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:27,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110818248] [2023-11-29 04:27:27,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:27,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:27,990 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:27,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658319367] [2023-11-29 04:27:27,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:27,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:27,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:27,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:28,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:27:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:28,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:27:28,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:28,091 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:28,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:28,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110818248] [2023-11-29 04:27:28,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:28,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658319367] [2023-11-29 04:27:28,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658319367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:28,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:28,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:27:28,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464122995] [2023-11-29 04:27:28,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:28,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:27:28,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:28,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:27:28,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:28,095 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:28,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:28,125 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2023-11-29 04:27:28,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:27:28,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 04:27:28,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:28,127 INFO L225 Difference]: With dead ends: 39 [2023-11-29 04:27:28,127 INFO L226 Difference]: Without dead ends: 33 [2023-11-29 04:27:28,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:27:28,129 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:28,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 32 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:28,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-29 04:27:28,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-29 04:27:28,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 29 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:28,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2023-11-29 04:27:28,136 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 7 [2023-11-29 04:27:28,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:28,137 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2023-11-29 04:27:28,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:27:28,137 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2023-11-29 04:27:28,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 04:27:28,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:28,138 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:28,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:28,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:28,344 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:28,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:28,345 INFO L85 PathProgramCache]: Analyzing trace with hash -808983809, now seen corresponding path program 1 times [2023-11-29 04:27:28,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:28,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951466931] [2023-11-29 04:27:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:28,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:28,358 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:28,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284572488] [2023-11-29 04:27:28,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:28,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:28,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:28,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:28,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:27:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:28,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:27:28,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:28,475 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:28,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:28,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951466931] [2023-11-29 04:27:28,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:28,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284572488] [2023-11-29 04:27:28,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284572488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:28,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:28,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:27:28,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850849153] [2023-11-29 04:27:28,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:28,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:27:28,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:28,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:27:28,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:27:28,479 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:27:28,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:28,526 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-11-29 04:27:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:27:28,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-29 04:27:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:28,528 INFO L225 Difference]: With dead ends: 33 [2023-11-29 04:27:28,528 INFO L226 Difference]: Without dead ends: 32 [2023-11-29 04:27:28,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 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 04:27:28,530 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:28,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 48 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:28,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-29 04:27:28,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-29 04:27:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.25) internal successors, (30), 28 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2023-11-29 04:27:28,537 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 17 [2023-11-29 04:27:28,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:28,538 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2023-11-29 04:27:28,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 04:27:28,539 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-11-29 04:27:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 04:27:28,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:28,540 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:28,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:27:28,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:28,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:28,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:28,745 INFO L85 PathProgramCache]: Analyzing trace with hash 691305738, now seen corresponding path program 1 times [2023-11-29 04:27:28,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:28,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343698942] [2023-11-29 04:27:28,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:28,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:28,755 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:28,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [980087698] [2023-11-29 04:27:28,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:28,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:28,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:28,757 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:28,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:27:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:28,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:27:28,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:28,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:28,847 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:28,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:28,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:28,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343698942] [2023-11-29 04:27:28,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:28,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980087698] [2023-11-29 04:27:28,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980087698] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:28,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:28,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 04:27:28,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670270702] [2023-11-29 04:27:28,907 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:28,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:27:28,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:28,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:27:28,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:27:28,909 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:29,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:29,034 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2023-11-29 04:27:29,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:27:29,035 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-11-29 04:27:29,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:29,036 INFO L225 Difference]: With dead ends: 83 [2023-11-29 04:27:29,036 INFO L226 Difference]: Without dead ends: 79 [2023-11-29 04:27:29,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 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 04:27:29,038 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 52 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:29,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 127 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:27:29,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-29 04:27:29,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2023-11-29 04:27:29,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 54 states have (on average 1.2777777777777777) internal successors, (69), 58 states have internal predecessors, (69), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 04:27:29,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2023-11-29 04:27:29,050 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 18 [2023-11-29 04:27:29,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:29,050 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2023-11-29 04:27:29,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:29,051 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2023-11-29 04:27:29,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 04:27:29,052 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:29,052 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:29,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:27:29,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:29,254 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:29,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:29,254 INFO L85 PathProgramCache]: Analyzing trace with hash 321102182, now seen corresponding path program 1 times [2023-11-29 04:27:29,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:29,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149784709] [2023-11-29 04:27:29,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:29,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:29,262 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:29,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053028393] [2023-11-29 04:27:29,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:29,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:29,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:29,263 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:29,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:27:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:29,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:27:29,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:29,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:29,434 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:29,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:29,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149784709] [2023-11-29 04:27:29,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:29,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053028393] [2023-11-29 04:27:29,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053028393] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:29,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:29,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:27:29,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533462188] [2023-11-29 04:27:29,435 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:29,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:27:29,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:29,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:27:29,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:27:29,437 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:29,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:29,511 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2023-11-29 04:27:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:27:29,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-11-29 04:27:29,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:29,512 INFO L225 Difference]: With dead ends: 78 [2023-11-29 04:27:29,513 INFO L226 Difference]: Without dead ends: 68 [2023-11-29 04:27:29,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:27:29,514 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:29,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 72 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:27:29,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-29 04:27:29,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-11-29 04:27:29,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 57 states have (on average 1.0526315789473684) internal successors, (60), 59 states have internal predecessors, (60), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 04:27:29,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2023-11-29 04:27:29,525 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 21 [2023-11-29 04:27:29,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:29,526 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2023-11-29 04:27:29,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:29,526 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2023-11-29 04:27:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 04:27:29,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:29,528 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-29 04:27:29,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:27:29,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 04:27:29,729 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:29,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:29,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1259495391, now seen corresponding path program 2 times [2023-11-29 04:27:29,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:29,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607543685] [2023-11-29 04:27:29,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:29,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:29,741 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:29,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433249336] [2023-11-29 04:27:29,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:27:29,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:29,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:29,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:29,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:27:29,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:27:29,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:29,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:27:29,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:29,964 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:29,964 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:30,195 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:27:30,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:30,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607543685] [2023-11-29 04:27:30,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:30,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433249336] [2023-11-29 04:27:30,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433249336] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:30,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:30,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 21 [2023-11-29 04:27:30,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870889392] [2023-11-29 04:27:30,197 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:30,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 04:27:30,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:30,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 04:27:30,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-11-29 04:27:30,199 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand has 22 states, 21 states have (on average 4.523809523809524) internal successors, (95), 22 states have internal predecessors, (95), 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 04:27:30,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:30,593 INFO L93 Difference]: Finished difference Result 170 states and 175 transitions. [2023-11-29 04:27:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-11-29 04:27:30,593 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.523809523809524) internal successors, (95), 22 states have internal predecessors, (95), 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) Word has length 60 [2023-11-29 04:27:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:30,595 INFO L225 Difference]: With dead ends: 170 [2023-11-29 04:27:30,595 INFO L226 Difference]: Without dead ends: 166 [2023-11-29 04:27:30,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 98 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 04:27:30,597 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 126 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:30,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 157 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:27:30,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2023-11-29 04:27:30,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 149. [2023-11-29 04:27:30,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 126 states have (on average 1.0952380952380953) internal successors, (138), 128 states have internal predecessors, (138), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:27:30,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 158 transitions. [2023-11-29 04:27:30,615 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 158 transitions. Word has length 60 [2023-11-29 04:27:30,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:30,616 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 158 transitions. [2023-11-29 04:27:30,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.523809523809524) internal successors, (95), 22 states have internal predecessors, (95), 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 04:27:30,616 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 158 transitions. [2023-11-29 04:27:30,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 04:27:30,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:30,618 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-29 04:27:30,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:30,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 04:27:30,824 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:30,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:30,824 INFO L85 PathProgramCache]: Analyzing trace with hash -792849681, now seen corresponding path program 2 times [2023-11-29 04:27:30,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:30,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360021778] [2023-11-29 04:27:30,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:30,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:30,836 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:30,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95319336] [2023-11-29 04:27:30,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:27:30,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:30,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:30,838 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:30,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:27:30,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:27:30,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:30,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:27:30,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:30,987 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:27:30,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:27:31,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:31,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360021778] [2023-11-29 04:27:31,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:31,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95319336] [2023-11-29 04:27:31,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95319336] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:31,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:31,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 04:27:31,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549874343] [2023-11-29 04:27:31,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:31,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:27:31,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:31,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:27:31,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:27:31,173 INFO L87 Difference]: Start difference. First operand 149 states and 158 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:27:31,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:31,386 INFO L93 Difference]: Finished difference Result 164 states and 173 transitions. [2023-11-29 04:27:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:27:31,387 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 63 [2023-11-29 04:27:31,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:31,389 INFO L225 Difference]: With dead ends: 164 [2023-11-29 04:27:31,389 INFO L226 Difference]: Without dead ends: 152 [2023-11-29 04:27:31,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:27:31,390 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 51 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:31,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 221 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:27:31,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-29 04:27:31,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2023-11-29 04:27:31,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 129 states have (on average 1.0232558139534884) internal successors, (132), 131 states have internal predecessors, (132), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:27:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2023-11-29 04:27:31,408 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 63 [2023-11-29 04:27:31,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:31,408 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2023-11-29 04:27:31,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 12 states have internal predecessors, (89), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 04:27:31,409 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2023-11-29 04:27:31,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 04:27:31,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:31,412 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2023-11-29 04:27:31,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:27:31,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 04:27:31,616 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:31,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:31,617 INFO L85 PathProgramCache]: Analyzing trace with hash 450588687, now seen corresponding path program 3 times [2023-11-29 04:27:31,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:31,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476392196] [2023-11-29 04:27:31,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:31,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:31,634 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:31,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936693560] [2023-11-29 04:27:31,634 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:27:31,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:31,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:31,636 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:31,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:27:31,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 04:27:31,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:31,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:27:31,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2023-11-29 04:27:31,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:27:31,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:31,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476392196] [2023-11-29 04:27:31,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:31,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936693560] [2023-11-29 04:27:31,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936693560] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:27:31,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:27:31,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:27:31,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139854981] [2023-11-29 04:27:31,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:27:31,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:27:31,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:31,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:27:31,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:27:31,753 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:31,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:31,786 INFO L93 Difference]: Finished difference Result 152 states and 152 transitions. [2023-11-29 04:27:31,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:27:31,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 144 [2023-11-29 04:27:31,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:31,788 INFO L225 Difference]: With dead ends: 152 [2023-11-29 04:27:31,788 INFO L226 Difference]: Without dead ends: 151 [2023-11-29 04:27:31,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 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 04:27:31,790 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:31,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 39 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:27:31,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-29 04:27:31,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-29 04:27:31,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 129 states have (on average 1.0155038759689923) internal successors, (131), 130 states have internal predecessors, (131), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:27:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2023-11-29 04:27:31,805 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 144 [2023-11-29 04:27:31,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:31,806 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2023-11-29 04:27:31,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:27:31,806 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2023-11-29 04:27:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 04:27:31,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:31,809 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2023-11-29 04:27:31,814 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:27:32,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:32,012 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:32,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:32,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1714820161, now seen corresponding path program 3 times [2023-11-29 04:27:32,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:32,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140761055] [2023-11-29 04:27:32,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:32,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:32,027 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:32,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127725671] [2023-11-29 04:27:32,027 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:27:32,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:32,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:32,029 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:32,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:27:32,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-29 04:27:32,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:32,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:27:32,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:32,697 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 680 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:27:32,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:33,000 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 500 proven. 10 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:27:33,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:33,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140761055] [2023-11-29 04:27:33,000 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:33,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127725671] [2023-11-29 04:27:33,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127725671] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:33,000 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:33,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 24 [2023-11-29 04:27:33,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919086388] [2023-11-29 04:27:33,001 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:33,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 04:27:33,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:33,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 04:27:33,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:27:33,003 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand has 24 states, 24 states have (on average 5.416666666666667) internal successors, (130), 24 states have internal predecessors, (130), 10 states have call successors, (20), 11 states have call predecessors, (20), 11 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-11-29 04:27:33,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:33,381 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2023-11-29 04:27:33,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-11-29 04:27:33,381 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.416666666666667) internal successors, (130), 24 states have internal predecessors, (130), 10 states have call successors, (20), 11 states have call predecessors, (20), 11 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 147 [2023-11-29 04:27:33,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:33,383 INFO L225 Difference]: With dead ends: 166 [2023-11-29 04:27:33,383 INFO L226 Difference]: Without dead ends: 148 [2023-11-29 04:27:33,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 249 SyntacticMatches, 21 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=659, Invalid=1321, Unknown=0, NotChecked=0, Total=1980 [2023-11-29 04:27:33,385 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 44 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:33,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 544 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:27:33,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-29 04:27:33,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-29 04:27:33,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 127 states have (on average 1.0) internal successors, (127), 127 states have internal predecessors, (127), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:27:33,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 147 transitions. [2023-11-29 04:27:33,399 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 147 transitions. Word has length 147 [2023-11-29 04:27:33,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:33,399 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 147 transitions. [2023-11-29 04:27:33,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.416666666666667) internal successors, (130), 24 states have internal predecessors, (130), 10 states have call successors, (20), 11 states have call predecessors, (20), 11 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-11-29 04:27:33,400 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 147 transitions. [2023-11-29 04:27:33,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 04:27:33,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:33,403 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-11-29 04:27:33,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:27:33,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 04:27:33,608 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:27:33,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:33,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1714818783, now seen corresponding path program 1 times [2023-11-29 04:27:33,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:33,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590649042] [2023-11-29 04:27:33,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:33,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:33,625 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:33,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634620132] [2023-11-29 04:27:33,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:33,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:33,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:33,627 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:33,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:27:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:27:33,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:27:33,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:27:33,896 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:27:34,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:34,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590649042] [2023-11-29 04:27:34,322 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:34,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634620132] [2023-11-29 04:27:34,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634620132] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:34,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:34,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 04:27:34,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357161698] [2023-11-29 04:27:34,323 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:34,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 04:27:34,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:34,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 04:27:34,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:27:34,326 INFO L87 Difference]: Start difference. First operand 148 states and 147 transitions. Second operand has 24 states, 23 states have (on average 8.565217391304348) internal successors, (197), 24 states have internal predecessors, (197), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:27:34,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:34,553 INFO L93 Difference]: Finished difference Result 148 states and 147 transitions. [2023-11-29 04:27:34,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:27:34,554 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 8.565217391304348) internal successors, (197), 24 states have internal predecessors, (197), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 147 [2023-11-29 04:27:34,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:34,555 INFO L225 Difference]: With dead ends: 148 [2023-11-29 04:27:34,555 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 04:27:34,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:27:34,556 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:34,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 786 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:27:34,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 04:27:34,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 04:27:34,557 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 04:27:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 04:27:34,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 147 [2023-11-29 04:27:34,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:34,558 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 04:27:34,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 8.565217391304348) internal successors, (197), 24 states have internal predecessors, (197), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:27:34,558 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 04:27:34,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 04:27:34,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-29 04:27:34,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-29 04:27:34,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-29 04:27:34,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-29 04:27:34,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-29 04:27:34,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-29 04:27:34,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-29 04:27:34,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-29 04:27:34,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 04:27:34,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:34,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 04:27:34,935 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-29 04:27:34,935 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-11-29 04:27:34,935 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 04:27:34,936 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2023-11-29 04:27:34,936 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-29 04:27:34,936 INFO L895 garLoopResultBuilder]: At program point L33-2(line 33) the Hoare annotation is: (let ((.cse0 (<= ~counter~0 10))) (or (and .cse0 (= 7 |ULTIMATE.start_main_~r~0#1|) (<= 8 ~counter~0)) (and (= |ULTIMATE.start_main_~r~0#1| 0) (= ~counter~0 1)) (and (= ~counter~0 4) (= 3 |ULTIMATE.start_main_~r~0#1|)) (and (= |ULTIMATE.start_main_~r~0#1| 8) .cse0 (<= 9 ~counter~0)) (and .cse0 (= |ULTIMATE.start_main_~r~0#1| 4) (<= 5 ~counter~0)) (and (= 6 |ULTIMATE.start_main_~r~0#1|) .cse0 (<= 7 ~counter~0)) (and .cse0 (= 5 |ULTIMATE.start_main_~r~0#1|) (<= 6 ~counter~0)) (and (= |ULTIMATE.start_main_~r~0#1| 1) (= ~counter~0 2)) (and (= ~counter~0 10) (= 9 |ULTIMATE.start_main_~r~0#1|)) (and (= ~counter~0 3) (= 2 |ULTIMATE.start_main_~r~0#1|)))) [2023-11-29 04:27:34,936 INFO L899 garLoopResultBuilder]: For program point L33-3(lines 32 39) no Hoare annotation was computed. [2023-11-29 04:27:34,936 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-29 04:27:34,937 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 04:27:34,937 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-29 04:27:34,937 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2023-11-29 04:27:34,937 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2023-11-29 04:27:34,937 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2023-11-29 04:27:34,937 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-29 04:27:34,937 INFO L899 garLoopResultBuilder]: For program point L32-2(line 32) no Hoare annotation was computed. [2023-11-29 04:27:34,937 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-29 04:27:34,937 INFO L899 garLoopResultBuilder]: For program point L32-3(lines 32 39) no Hoare annotation was computed. [2023-11-29 04:27:34,938 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2023-11-29 04:27:34,938 INFO L895 garLoopResultBuilder]: At program point L32-5(lines 32 39) the Hoare annotation is: (let ((.cse0 (<= ~counter~0 10))) (or (and (= 2 |ULTIMATE.start_main_~r~0#1|) (= ~counter~0 2)) (and .cse0 (= 5 |ULTIMATE.start_main_~r~0#1|) (<= 5 ~counter~0)) (and .cse0 (= 9 |ULTIMATE.start_main_~r~0#1|) (<= 9 ~counter~0)) (and (= ~counter~0 4) (= |ULTIMATE.start_main_~r~0#1| 4)) (and .cse0 (= 7 |ULTIMATE.start_main_~r~0#1|) (<= 7 ~counter~0)) (and (= ~counter~0 10) (= |ULTIMATE.start_main_~r~0#1| 10)) (and (= |ULTIMATE.start_main_~r~0#1| 0) (= ~counter~0 0)) (and (= 6 |ULTIMATE.start_main_~r~0#1|) .cse0 (<= 6 ~counter~0)) (and (= |ULTIMATE.start_main_~r~0#1| 1) (= ~counter~0 1)) (and (= ~counter~0 3) (= 3 |ULTIMATE.start_main_~r~0#1|)) (and (= |ULTIMATE.start_main_~r~0#1| 8) .cse0 (<= 8 ~counter~0)))) [2023-11-29 04:27:34,938 INFO L899 garLoopResultBuilder]: For program point L32-6(lines 32 39) no Hoare annotation was computed. [2023-11-29 04:27:34,938 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-29 04:27:34,938 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-29 04:27:34,938 INFO L902 garLoopResultBuilder]: At program point L41-1(line 41) the Hoare annotation is: true [2023-11-29 04:27:34,938 INFO L899 garLoopResultBuilder]: For program point L41-2(line 41) no Hoare annotation was computed. [2023-11-29 04:27:34,939 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 20) no Hoare annotation was computed. [2023-11-29 04:27:34,939 INFO L899 garLoopResultBuilder]: For program point L17-2(lines 16 22) no Hoare annotation was computed. [2023-11-29 04:27:34,939 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 16 22) no Hoare annotation was computed. [2023-11-29 04:27:34,939 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 22) the Hoare annotation is: true [2023-11-29 04:27:34,942 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1] [2023-11-29 04:27:34,944 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:27:34,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:27:34 BoogieIcfgContainer [2023-11-29 04:27:34,954 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:27:34,955 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:27:34,955 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:27:34,955 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:27:34,955 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:27:27" (3/4) ... [2023-11-29 04:27:34,956 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 04:27:34,959 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 04:27:34,962 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-29 04:27:34,962 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 04:27:34,963 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 04:27:34,963 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 04:27:35,036 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 04:27:35,036 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 04:27:35,037 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:27:35,037 INFO L158 Benchmark]: Toolchain (without parser) took 8075.10ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 150.1MB in the beginning and 168.1MB in the end (delta: -18.0MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2023-11-29 04:27:35,038 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:27:35,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.57ms. Allocated memory is still 184.5MB. Free memory was 149.7MB in the beginning and 139.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 04:27:35,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.70ms. Allocated memory is still 184.5MB. Free memory was 139.2MB in the beginning and 137.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:27:35,039 INFO L158 Benchmark]: Boogie Preprocessor took 33.05ms. Allocated memory is still 184.5MB. Free memory was 137.8MB in the beginning and 136.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:27:35,039 INFO L158 Benchmark]: RCFGBuilder took 268.21ms. Allocated memory is still 184.5MB. Free memory was 136.2MB in the beginning and 125.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 04:27:35,040 INFO L158 Benchmark]: TraceAbstraction took 7467.71ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 124.5MB in the beginning and 172.3MB in the end (delta: -47.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:27:35,040 INFO L158 Benchmark]: Witness Printer took 82.32ms. Allocated memory is still 222.3MB. Free memory was 172.3MB in the beginning and 168.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 04:27:35,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.57ms. Allocated memory is still 184.5MB. Free memory was 149.7MB in the beginning and 139.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.70ms. Allocated memory is still 184.5MB. Free memory was 139.2MB in the beginning and 137.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.05ms. Allocated memory is still 184.5MB. Free memory was 137.8MB in the beginning and 136.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 268.21ms. Allocated memory is still 184.5MB. Free memory was 136.2MB in the beginning and 125.3MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7467.71ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 124.5MB in the beginning and 172.3MB in the end (delta: -47.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 82.32ms. Allocated memory is still 222.3MB. Free memory was 172.3MB in the beginning and 168.1MB 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: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 11, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 336 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 331 mSDsluCounter, 2107 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1741 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1256 IncrementalHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 366 mSDtfsCounter, 1256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1127 GetRequests, 952 SyntacticMatches, 21 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 909 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=8, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 29 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 17 PreInvPairs, 39 NumberOfFragments, 181 HoareAnnotationTreeSize, 17 FomulaSimplifications, 404 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 180 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 630 NumberOfCodeBlocks, 504 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1069 ConstructedInterpolants, 0 QuantifiedInterpolants, 3515 SizeOfPredicates, 37 NumberOfNonLiveVariables, 1021 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 2454/3808 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((2 == r) && (counter == 2)) || (((counter <= 10) && (5 == r)) && (5 <= counter))) || (((counter <= 10) && (9 == r)) && (9 <= counter))) || ((counter == 4) && (r == 4))) || (((counter <= 10) && (7 == r)) && (7 <= counter))) || ((counter == 10) && (r == 10))) || ((r == 0) && (counter == 0))) || (((6 == r) && (counter <= 10)) && (6 <= counter))) || ((r == 1) && (counter == 1))) || ((counter == 3) && (3 == r))) || (((r == 8) && (counter <= 10)) && (8 <= counter))) RESULT: Ultimate proved your program to be correct! [2023-11-29 04:27:35,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a70c34e-4863-40bc-8ecd-adef65394e43/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