./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/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_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/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_0a8c3749-2c56-439f-b827-496a562b9b62/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 1b50d522769b95768e9038f61a48a3b927d40a7b91b44cb14af45fcd08759b69 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:32:04,305 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:32:04,373 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 02:32:04,377 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:32:04,378 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:32:04,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:32:04,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:32:04,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:32:04,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:32:04,413 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:32:04,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:32:04,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:32:04,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:32:04,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:32:04,422 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:32:04,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:32:04,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:32:04,424 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:32:04,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:32:04,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:32:04,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:32:04,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:32:04,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:32:04,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:32:04,427 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:32:04,428 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:32:04,428 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:32:04,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:32:04,429 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:32:04,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:32:04,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:32:04,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:32:04,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:32:04,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:32:04,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:32:04,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:32:04,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:32:04,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:32:04,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:32:04,432 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:32:04,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:32:04,432 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:32:04,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:32:04,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:32:04,433 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_0a8c3749-2c56-439f-b827-496a562b9b62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b50d522769b95768e9038f61a48a3b927d40a7b91b44cb14af45fcd08759b69 [2023-11-29 02:32:04,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:32:04,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:32:04,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:32:04,677 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:32:04,678 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:32:04,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c [2023-11-29 02:32:07,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:32:07,531 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:32:07,531 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c [2023-11-29 02:32:07,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/data/3d50448ae/f2e615f51c934becb5fa81421145357d/FLAGb87a3601e [2023-11-29 02:32:07,553 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/data/3d50448ae/f2e615f51c934becb5fa81421145357d [2023-11-29 02:32:07,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:32:07,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:32:07,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:32:07,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:32:07,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:32:07,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2494ab7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07, skipping insertion in model container [2023-11-29 02:32:07,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:32:07,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:32:07,764 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:32:07,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:32:07,796 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:32:07,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07 WrapperNode [2023-11-29 02:32:07,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:32:07,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:32:07,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:32:07,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:32:07,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,833 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2023-11-29 02:32:07,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:32:07,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:32:07,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:32:07,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:32:07,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,848 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,860 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 02:32:07,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,867 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:32:07,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:32:07,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:32:07,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:32:07,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (1/1) ... [2023-11-29 02:32:07,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:32:07,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:07,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:32:07,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:32:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:32:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:32:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:32:07,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:32:07,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 02:32:07,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 02:32:08,004 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:32:08,006 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:32:08,195 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:32:08,230 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:32:08,230 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:32:08,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:32:08 BoogieIcfgContainer [2023-11-29 02:32:08,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:32:08,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:32:08,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:32:08,237 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:32:08,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:32:07" (1/3) ... [2023-11-29 02:32:08,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c51989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:32:08, skipping insertion in model container [2023-11-29 02:32:08,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:32:07" (2/3) ... [2023-11-29 02:32:08,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c51989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:32:08, skipping insertion in model container [2023-11-29 02:32:08,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:32:08" (3/3) ... [2023-11-29 02:32:08,240 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound5.c [2023-11-29 02:32:08,274 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:32:08,274 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-29 02:32:08,318 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:32:08,324 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;@2626b37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:32:08,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-29 02:32:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 53 states have internal predecessors, (58), 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 02:32:08,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 02:32:08,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:08,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 02:32:08,333 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:08,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:08,338 INFO L85 PathProgramCache]: Analyzing trace with hash 115598281, now seen corresponding path program 1 times [2023-11-29 02:32:08,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:08,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98709864] [2023-11-29 02:32:08,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:08,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:08,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:08,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:08,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98709864] [2023-11-29 02:32:08,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98709864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:08,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:08,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:32:08,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726301555] [2023-11-29 02:32:08,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:08,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 02:32:08,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:08,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 02:32:08,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 02:32:08,485 INFO L87 Difference]: Start difference. First operand has 57 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 53 states have internal predecessors, (58), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:08,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:08,514 INFO L93 Difference]: Finished difference Result 110 states and 123 transitions. [2023-11-29 02:32:08,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 02:32:08,516 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-29 02:32:08,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:08,522 INFO L225 Difference]: With dead ends: 110 [2023-11-29 02:32:08,522 INFO L226 Difference]: Without dead ends: 52 [2023-11-29 02:32:08,525 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 02:32:08,528 INFO L413 NwaCegarLoop]: 54 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, 54 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 02:32:08,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-29 02:32:08,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-29 02:32:08,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 30 states have (on average 1.6666666666666667) internal successors, (50), 49 states have internal predecessors, (50), 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 02:32:08,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2023-11-29 02:32:08,562 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 5 [2023-11-29 02:32:08,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:08,562 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2023-11-29 02:32:08,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:08,563 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2023-11-29 02:32:08,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 02:32:08,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:08,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 02:32:08,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:32:08,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:08,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:08,565 INFO L85 PathProgramCache]: Analyzing trace with hash -709572716, now seen corresponding path program 1 times [2023-11-29 02:32:08,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:08,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40614626] [2023-11-29 02:32:08,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:08,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:08,579 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:08,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731470361] [2023-11-29 02:32:08,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:08,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:08,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:08,583 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:08,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:32:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:08,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:32:08,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:08,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:08,659 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:08,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:08,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40614626] [2023-11-29 02:32:08,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:08,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731470361] [2023-11-29 02:32:08,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731470361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:08,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:08,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:32:08,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601593007] [2023-11-29 02:32:08,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:08,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:32:08,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:08,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:32:08,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:32:08,664 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:08,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:08,767 INFO L93 Difference]: Finished difference Result 93 states and 94 transitions. [2023-11-29 02:32:08,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:32:08,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 02:32:08,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:08,770 INFO L225 Difference]: With dead ends: 93 [2023-11-29 02:32:08,770 INFO L226 Difference]: Without dead ends: 89 [2023-11-29 02:32:08,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:32:08,772 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 33 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:08,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 51 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:08,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-29 02:32:08,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 69. [2023-11-29 02:32:08,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 46 states have (on average 1.6304347826086956) internal successors, (75), 65 states have internal predecessors, (75), 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 02:32:08,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2023-11-29 02:32:08,784 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 6 [2023-11-29 02:32:08,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:08,784 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2023-11-29 02:32:08,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:08,785 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2023-11-29 02:32:08,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 02:32:08,785 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:08,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:08,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-29 02:32:08,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:08,991 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:08,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:08,992 INFO L85 PathProgramCache]: Analyzing trace with hash -521917662, now seen corresponding path program 1 times [2023-11-29 02:32:08,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:08,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399250509] [2023-11-29 02:32:08,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:08,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:09,001 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:09,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522328168] [2023-11-29 02:32:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:09,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:09,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:09,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:09,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:32:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:09,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:32:09,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:09,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:09,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:09,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:09,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399250509] [2023-11-29 02:32:09,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:09,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522328168] [2023-11-29 02:32:09,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522328168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:09,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:09,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:32:09,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672617843] [2023-11-29 02:32:09,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:09,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:32:09,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:09,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:32:09,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:32:09,058 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:09,154 INFO L93 Difference]: Finished difference Result 87 states and 94 transitions. [2023-11-29 02:32:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:32:09,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 02:32:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:09,156 INFO L225 Difference]: With dead ends: 87 [2023-11-29 02:32:09,157 INFO L226 Difference]: Without dead ends: 85 [2023-11-29 02:32:09,157 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 02:32:09,159 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 34 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:09,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 49 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:09,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-29 02:32:09,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 70. [2023-11-29 02:32:09,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.5957446808510638) internal successors, (75), 66 states have internal predecessors, (75), 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 02:32:09,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2023-11-29 02:32:09,169 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 7 [2023-11-29 02:32:09,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:09,170 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2023-11-29 02:32:09,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:09,170 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2023-11-29 02:32:09,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 02:32:09,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:09,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:09,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:32:09,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:09,372 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:09,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:09,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1000421718, now seen corresponding path program 1 times [2023-11-29 02:32:09,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:09,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855532793] [2023-11-29 02:32:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:09,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:09,383 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:09,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410763757] [2023-11-29 02:32:09,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:09,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:09,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:09,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:09,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:32:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:09,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:32:09,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:09,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:09,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:09,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:09,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855532793] [2023-11-29 02:32:09,437 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:09,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410763757] [2023-11-29 02:32:09,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410763757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:09,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:09,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:32:09,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286373612] [2023-11-29 02:32:09,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:09,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:32:09,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:09,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:32:09,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:32:09,439 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:09,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:09,529 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2023-11-29 02:32:09,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:32:09,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 02:32:09,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:09,531 INFO L225 Difference]: With dead ends: 91 [2023-11-29 02:32:09,531 INFO L226 Difference]: Without dead ends: 85 [2023-11-29 02:32:09,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:32:09,533 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 27 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:09,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 55 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:09,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-29 02:32:09,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 74. [2023-11-29 02:32:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 70 states have internal predecessors, (77), 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 02:32:09,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2023-11-29 02:32:09,542 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 8 [2023-11-29 02:32:09,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:09,542 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2023-11-29 02:32:09,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:09,542 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2023-11-29 02:32:09,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 02:32:09,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:09,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:09,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:32:09,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:09,744 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:09,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:09,744 INFO L85 PathProgramCache]: Analyzing trace with hash -667401448, now seen corresponding path program 1 times [2023-11-29 02:32:09,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:09,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435935661] [2023-11-29 02:32:09,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:09,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:09,753 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:09,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [287124026] [2023-11-29 02:32:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:09,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:09,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:09,755 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:09,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:32:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:09,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:32:09,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:09,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:09,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:09,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:09,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435935661] [2023-11-29 02:32:09,855 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:09,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287124026] [2023-11-29 02:32:09,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287124026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:09,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:09,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:32:09,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088307615] [2023-11-29 02:32:09,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:09,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:32:09,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:09,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:32:09,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:09,858 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:10,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:10,002 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2023-11-29 02:32:10,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:32:10,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-29 02:32:10,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:10,004 INFO L225 Difference]: With dead ends: 85 [2023-11-29 02:32:10,004 INFO L226 Difference]: Without dead ends: 73 [2023-11-29 02:32:10,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:10,006 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 40 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:10,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 53 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:10,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-29 02:32:10,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2023-11-29 02:32:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 44 states have (on average 1.5) internal successors, (66), 63 states have internal predecessors, (66), 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 02:32:10,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 70 transitions. [2023-11-29 02:32:10,014 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 70 transitions. Word has length 10 [2023-11-29 02:32:10,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:10,014 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 70 transitions. [2023-11-29 02:32:10,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:10,014 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 70 transitions. [2023-11-29 02:32:10,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 02:32:10,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:10,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:10,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 02:32:10,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:10,216 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:10,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:10,217 INFO L85 PathProgramCache]: Analyzing trace with hash 995753226, now seen corresponding path program 1 times [2023-11-29 02:32:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:10,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995431284] [2023-11-29 02:32:10,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:10,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:10,227 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:10,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697124868] [2023-11-29 02:32:10,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:10,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:10,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:10,229 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:10,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:32:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:10,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:32:10,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:10,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:10,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:10,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995431284] [2023-11-29 02:32:10,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:10,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697124868] [2023-11-29 02:32:10,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697124868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:10,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:10,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:32:10,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927247836] [2023-11-29 02:32:10,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:10,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:32:10,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:10,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:32:10,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:32:10,303 INFO L87 Difference]: Start difference. First operand 67 states and 70 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 02:32:10,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:10,313 INFO L93 Difference]: Finished difference Result 67 states and 70 transitions. [2023-11-29 02:32:10,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:32:10,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 19 [2023-11-29 02:32:10,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:10,314 INFO L225 Difference]: With dead ends: 67 [2023-11-29 02:32:10,315 INFO L226 Difference]: Without dead ends: 66 [2023-11-29 02:32:10,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:32:10,316 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 32 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:10,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 50 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-29 02:32:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-29 02:32:10,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 62 states have internal predecessors, (64), 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 02:32:10,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2023-11-29 02:32:10,324 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 19 [2023-11-29 02:32:10,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:10,325 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2023-11-29 02:32:10,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 02:32:10,325 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2023-11-29 02:32:10,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 02:32:10,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:10,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:10,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:32:10,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:10,527 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:10,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:10,527 INFO L85 PathProgramCache]: Analyzing trace with hash 803579008, now seen corresponding path program 1 times [2023-11-29 02:32:10,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:10,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005338862] [2023-11-29 02:32:10,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:10,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:10,538 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:10,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129410884] [2023-11-29 02:32:10,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:10,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:10,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:10,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:10,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:32:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:10,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 02:32:10,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:10,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:10,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005338862] [2023-11-29 02:32:10,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:10,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129410884] [2023-11-29 02:32:10,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129410884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:10,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:10,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:32:10,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250205683] [2023-11-29 02:32:10,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:10,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:32:10,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:10,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:32:10,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:32:10,608 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 02:32:10,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:10,622 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2023-11-29 02:32:10,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:32:10,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 20 [2023-11-29 02:32:10,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:10,623 INFO L225 Difference]: With dead ends: 67 [2023-11-29 02:32:10,623 INFO L226 Difference]: Without dead ends: 66 [2023-11-29 02:32:10,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:32:10,625 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:10,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:10,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-29 02:32:10,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-29 02:32:10,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 62 states have internal predecessors, (63), 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 02:32:10,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2023-11-29 02:32:10,632 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 20 [2023-11-29 02:32:10,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:10,633 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2023-11-29 02:32:10,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 02:32:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2023-11-29 02:32:10,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-29 02:32:10,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:10,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:10,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:32:10,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 02:32:10,839 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:10,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:10,839 INFO L85 PathProgramCache]: Analyzing trace with hash -725405042, now seen corresponding path program 1 times [2023-11-29 02:32:10,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:10,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719938508] [2023-11-29 02:32:10,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:10,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:10,848 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:10,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208881205] [2023-11-29 02:32:10,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:10,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:10,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:10,850 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:10,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:32:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:10,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:32:10,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:10,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:10,982 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:10,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:10,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719938508] [2023-11-29 02:32:10,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:10,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208881205] [2023-11-29 02:32:10,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208881205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:10,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:10,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:32:10,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261194698] [2023-11-29 02:32:10,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:10,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:32:10,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:32:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:10,985 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 02:32:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:11,051 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2023-11-29 02:32:11,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:32:11,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 23 [2023-11-29 02:32:11,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:11,052 INFO L225 Difference]: With dead ends: 66 [2023-11-29 02:32:11,052 INFO L226 Difference]: Without dead ends: 62 [2023-11-29 02:32:11,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:11,053 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 61 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:11,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 29 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-29 02:32:11,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-11-29 02:32:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 58 states have internal predecessors, (59), 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 02:32:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2023-11-29 02:32:11,060 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 23 [2023-11-29 02:32:11,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:11,061 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2023-11-29 02:32:11,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 02:32:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2023-11-29 02:32:11,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 02:32:11,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:11,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:11,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 02:32:11,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:11,267 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:11,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:11,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1012719740, now seen corresponding path program 1 times [2023-11-29 02:32:11,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:11,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272067630] [2023-11-29 02:32:11,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:11,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:11,276 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:11,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048283349] [2023-11-29 02:32:11,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:11,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:11,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:11,278 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:11,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:32:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:11,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 02:32:11,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:11,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:11,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:11,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272067630] [2023-11-29 02:32:11,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:11,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048283349] [2023-11-29 02:32:11,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048283349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:11,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:11,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:32:11,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258400161] [2023-11-29 02:32:11,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:11,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:32:11,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:11,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:32:11,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:11,404 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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 02:32:11,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:11,481 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2023-11-29 02:32:11,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:32:11,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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) Word has length 24 [2023-11-29 02:32:11,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:11,482 INFO L225 Difference]: With dead ends: 65 [2023-11-29 02:32:11,482 INFO L226 Difference]: Without dead ends: 64 [2023-11-29 02:32:11,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:32:11,483 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:11,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:11,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-29 02:32:11,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-11-29 02:32:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.326086956521739) internal successors, (61), 60 states have internal predecessors, (61), 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 02:32:11,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2023-11-29 02:32:11,490 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 24 [2023-11-29 02:32:11,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:11,490 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2023-11-29 02:32:11,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 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 02:32:11,491 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2023-11-29 02:32:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 02:32:11,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:11,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:11,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 02:32:11,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:11,698 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:11,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:11,698 INFO L85 PathProgramCache]: Analyzing trace with hash -2083439506, now seen corresponding path program 1 times [2023-11-29 02:32:11,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:11,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621508348] [2023-11-29 02:32:11,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:11,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:11,705 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:11,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [916333954] [2023-11-29 02:32:11,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:11,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:11,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:11,706 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:11,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:32:11,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:11,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:32:11,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:11,780 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 02:32:11,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:11,863 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 02:32:11,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:11,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621508348] [2023-11-29 02:32:11,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:11,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916333954] [2023-11-29 02:32:11,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916333954] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:32:11,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:32:11,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 02:32:11,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243482090] [2023-11-29 02:32:11,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:32:11,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:32:11,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:11,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:32:11,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:11,866 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 02:32:12,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:12,086 INFO L93 Difference]: Finished difference Result 142 states and 151 transitions. [2023-11-29 02:32:12,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:32:12,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 27 [2023-11-29 02:32:12,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:12,088 INFO L225 Difference]: With dead ends: 142 [2023-11-29 02:32:12,088 INFO L226 Difference]: Without dead ends: 139 [2023-11-29 02:32:12,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 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 02:32:12,090 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 114 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:12,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 89 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:32:12,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-29 02:32:12,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 99. [2023-11-29 02:32:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 81 states have (on average 1.3580246913580247) internal successors, (110), 93 states have internal predecessors, (110), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:32:12,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 118 transitions. [2023-11-29 02:32:12,099 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 118 transitions. Word has length 27 [2023-11-29 02:32:12,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:12,100 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 118 transitions. [2023-11-29 02:32:12,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 02:32:12,100 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 118 transitions. [2023-11-29 02:32:12,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 02:32:12,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:12,101 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:12,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 02:32:12,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:12,302 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:12,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:12,303 INFO L85 PathProgramCache]: Analyzing trace with hash -730603600, now seen corresponding path program 1 times [2023-11-29 02:32:12,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:12,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972129563] [2023-11-29 02:32:12,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:12,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:12,311 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:12,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080243067] [2023-11-29 02:32:12,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:12,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:12,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:12,313 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:12,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:32:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:12,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:32:12,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:12,452 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:12,452 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:12,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:12,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:12,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972129563] [2023-11-29 02:32:12,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:12,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080243067] [2023-11-29 02:32:12,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080243067] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:32:12,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:32:12,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 02:32:12,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765115186] [2023-11-29 02:32:12,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:32:12,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:32:12,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:12,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:32:12,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:32:12,525 INFO L87 Difference]: Start difference. First operand 99 states and 118 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 02:32:12,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:12,686 INFO L93 Difference]: Finished difference Result 114 states and 130 transitions. [2023-11-29 02:32:12,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 02:32:12,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 29 [2023-11-29 02:32:12,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:12,688 INFO L225 Difference]: With dead ends: 114 [2023-11-29 02:32:12,688 INFO L226 Difference]: Without dead ends: 107 [2023-11-29 02:32:12,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:32:12,689 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 86 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:12,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 80 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:12,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-29 02:32:12,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 94. [2023-11-29 02:32:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 81 states have (on average 1.2098765432098766) internal successors, (98), 88 states have internal predecessors, (98), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:32:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2023-11-29 02:32:12,697 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 29 [2023-11-29 02:32:12,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:12,697 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2023-11-29 02:32:12,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 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 02:32:12,698 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2023-11-29 02:32:12,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 02:32:12,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:12,699 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:12,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 02:32:12,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:12,900 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:12,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:12,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2030388494, now seen corresponding path program 1 times [2023-11-29 02:32:12,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:12,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230067965] [2023-11-29 02:32:12,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:12,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:12,909 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:12,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966471256] [2023-11-29 02:32:12,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:12,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:12,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:12,911 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:12,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:32:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:12,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:32:12,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:32:13,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:13,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:13,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230067965] [2023-11-29 02:32:13,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:13,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966471256] [2023-11-29 02:32:13,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966471256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:13,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:13,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 02:32:13,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345413046] [2023-11-29 02:32:13,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:13,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:32:13,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:13,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:32:13,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:13,078 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 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 02:32:13,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:13,149 INFO L93 Difference]: Finished difference Result 94 states and 106 transitions. [2023-11-29 02:32:13,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:32:13,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 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 31 [2023-11-29 02:32:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:13,150 INFO L225 Difference]: With dead ends: 94 [2023-11-29 02:32:13,151 INFO L226 Difference]: Without dead ends: 82 [2023-11-29 02:32:13,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:13,152 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 20 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:13,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 50 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:13,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-29 02:32:13,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-11-29 02:32:13,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 73 states have (on average 1.095890410958904) internal successors, (80), 76 states have internal predecessors, (80), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:32:13,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 88 transitions. [2023-11-29 02:32:13,159 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 88 transitions. Word has length 31 [2023-11-29 02:32:13,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:13,159 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 88 transitions. [2023-11-29 02:32:13,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 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 02:32:13,160 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 88 transitions. [2023-11-29 02:32:13,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 02:32:13,161 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:13,161 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:13,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 02:32:13,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:13,363 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:13,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:13,364 INFO L85 PathProgramCache]: Analyzing trace with hash -302017574, now seen corresponding path program 1 times [2023-11-29 02:32:13,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:13,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212799916] [2023-11-29 02:32:13,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:13,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:13,371 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:13,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1915405748] [2023-11-29 02:32:13,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:13,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:13,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:13,373 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:13,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 02:32:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:13,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:32:13,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:13,460 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:32:13,460 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:13,519 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 02:32:13,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:13,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212799916] [2023-11-29 02:32:13,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:13,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915405748] [2023-11-29 02:32:13,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915405748] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:32:13,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:32:13,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 02:32:13,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54966928] [2023-11-29 02:32:13,520 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:32:13,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:32:13,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:13,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:32:13,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:13,522 INFO L87 Difference]: Start difference. First operand 82 states and 88 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:32:13,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:13,565 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2023-11-29 02:32:13,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:32:13,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 41 [2023-11-29 02:32:13,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:13,567 INFO L225 Difference]: With dead ends: 95 [2023-11-29 02:32:13,567 INFO L226 Difference]: Without dead ends: 94 [2023-11-29 02:32:13,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:13,568 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 6 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:13,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 109 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:13,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-29 02:32:13,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-11-29 02:32:13,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 82 states have (on average 1.0731707317073171) internal successors, (88), 85 states have internal predecessors, (88), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 02:32:13,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 98 transitions. [2023-11-29 02:32:13,576 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 98 transitions. Word has length 41 [2023-11-29 02:32:13,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:13,576 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 98 transitions. [2023-11-29 02:32:13,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 02:32:13,577 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 98 transitions. [2023-11-29 02:32:13,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 02:32:13,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:13,579 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-11-29 02:32:13,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 02:32:13,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 02:32:13,784 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:13,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:13,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1523975228, now seen corresponding path program 1 times [2023-11-29 02:32:13,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:13,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245426712] [2023-11-29 02:32:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:13,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:13,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:13,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [713785331] [2023-11-29 02:32:13,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:13,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:13,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:13,800 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:13,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 02:32:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:32:13,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:32:13,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:32:14,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:14,279 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:32:14,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:14,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245426712] [2023-11-29 02:32:14,280 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:14,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713785331] [2023-11-29 02:32:14,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713785331] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:32:14,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:32:14,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 02:32:14,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426414230] [2023-11-29 02:32:14,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:32:14,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:32:14,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:14,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:32:14,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:32:14,283 INFO L87 Difference]: Start difference. First operand 92 states and 98 transitions. Second operand has 14 states, 13 states have (on average 7.923076923076923) internal successors, (103), 14 states have internal predecessors, (103), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:32:14,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:14,579 INFO L93 Difference]: Finished difference Result 138 states and 147 transitions. [2023-11-29 02:32:14,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 02:32:14,580 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.923076923076923) internal successors, (103), 14 states have internal predecessors, (103), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 66 [2023-11-29 02:32:14,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:14,581 INFO L225 Difference]: With dead ends: 138 [2023-11-29 02:32:14,581 INFO L226 Difference]: Without dead ends: 137 [2023-11-29 02:32:14,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=240, Unknown=0, NotChecked=0, Total=420 [2023-11-29 02:32:14,583 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 16 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:14,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 89 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:32:14,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-11-29 02:32:14,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 130. [2023-11-29 02:32:14,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 118 states have (on average 1.0932203389830508) internal successors, (129), 121 states have internal predecessors, (129), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:32:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 143 transitions. [2023-11-29 02:32:14,594 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 143 transitions. Word has length 66 [2023-11-29 02:32:14,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:14,594 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 143 transitions. [2023-11-29 02:32:14,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.923076923076923) internal successors, (103), 14 states have internal predecessors, (103), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:32:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 143 transitions. [2023-11-29 02:32:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 02:32:14,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:14,596 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 02:32:14,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 02:32:14,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 02:32:14,799 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:14,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:14,799 INFO L85 PathProgramCache]: Analyzing trace with hash -838030480, now seen corresponding path program 2 times [2023-11-29 02:32:14,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:14,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174345916] [2023-11-29 02:32:14,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:14,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:14,809 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:14,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622354133] [2023-11-29 02:32:14,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:32:14,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:14,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:14,810 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:14,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 02:32:14,867 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:32:14,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:32:14,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 02:32:14,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:32:15,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:15,297 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 02:32:15,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:15,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174345916] [2023-11-29 02:32:15,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:15,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622354133] [2023-11-29 02:32:15,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622354133] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:32:15,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:32:15,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 02:32:15,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253726442] [2023-11-29 02:32:15,298 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:32:15,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 02:32:15,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:15,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 02:32:15,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:32:15,300 INFO L87 Difference]: Start difference. First operand 130 states and 143 transitions. Second operand has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:32:15,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:15,621 INFO L93 Difference]: Finished difference Result 141 states and 150 transitions. [2023-11-29 02:32:15,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 02:32:15,622 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 71 [2023-11-29 02:32:15,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:15,623 INFO L225 Difference]: With dead ends: 141 [2023-11-29 02:32:15,623 INFO L226 Difference]: Without dead ends: 140 [2023-11-29 02:32:15,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=249, Invalid=351, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:32:15,625 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 77 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:15,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 94 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:32:15,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-29 02:32:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 135. [2023-11-29 02:32:15,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 123 states have (on average 1.0731707317073171) internal successors, (132), 126 states have internal predecessors, (132), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 02:32:15,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 146 transitions. [2023-11-29 02:32:15,636 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 146 transitions. Word has length 71 [2023-11-29 02:32:15,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:15,637 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 146 transitions. [2023-11-29 02:32:15,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.533333333333333) internal successors, (113), 16 states have internal predecessors, (113), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 02:32:15,637 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 146 transitions. [2023-11-29 02:32:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 02:32:15,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:15,639 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-29 02:32:15,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 02:32:15,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 02:32:15,840 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:15,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:15,841 INFO L85 PathProgramCache]: Analyzing trace with hash -479440876, now seen corresponding path program 2 times [2023-11-29 02:32:15,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:15,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615398265] [2023-11-29 02:32:15,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:15,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:15,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:15,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196459777] [2023-11-29 02:32:15,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:32:15,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:15,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:15,856 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:15,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 02:32:15,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:32:15,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:32:15,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 02:32:15,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:16,019 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:32:16,019 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:16,249 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 02:32:16,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:16,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615398265] [2023-11-29 02:32:16,250 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:16,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196459777] [2023-11-29 02:32:16,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196459777] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:32:16,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:32:16,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 02:32:16,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859775315] [2023-11-29 02:32:16,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:32:16,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 02:32:16,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:16,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 02:32:16,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 02:32:16,253 INFO L87 Difference]: Start difference. First operand 135 states and 146 transitions. Second operand has 12 states, 11 states have (on average 12.818181818181818) internal successors, (141), 12 states have internal predecessors, (141), 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 02:32:16,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:16,567 INFO L93 Difference]: Finished difference Result 195 states and 209 transitions. [2023-11-29 02:32:16,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 02:32:16,568 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.818181818181818) internal successors, (141), 12 states have internal predecessors, (141), 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 90 [2023-11-29 02:32:16,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:16,569 INFO L225 Difference]: With dead ends: 195 [2023-11-29 02:32:16,569 INFO L226 Difference]: Without dead ends: 194 [2023-11-29 02:32:16,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 168 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 02:32:16,570 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 99 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:16,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 251 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:32:16,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-29 02:32:16,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 184. [2023-11-29 02:32:16,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 169 states have (on average 1.0828402366863905) internal successors, (183), 172 states have internal predecessors, (183), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:32:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 203 transitions. [2023-11-29 02:32:16,580 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 203 transitions. Word has length 90 [2023-11-29 02:32:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:16,581 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 203 transitions. [2023-11-29 02:32:16,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.818181818181818) internal successors, (141), 12 states have internal predecessors, (141), 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 02:32:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 203 transitions. [2023-11-29 02:32:16,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 02:32:16,582 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:16,583 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-29 02:32:16,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 02:32:16,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 02:32:16,783 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:16,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:16,784 INFO L85 PathProgramCache]: Analyzing trace with hash -276542208, now seen corresponding path program 2 times [2023-11-29 02:32:16,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:16,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117179078] [2023-11-29 02:32:16,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:16,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:16,793 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:16,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1595920959] [2023-11-29 02:32:16,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:32:16,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:16,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:16,795 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:16,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 02:32:16,837 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 02:32:16,837 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:32:16,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:32:16,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 02:32:16,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:17,026 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 02:32:17,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:17,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117179078] [2023-11-29 02:32:17,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:17,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595920959] [2023-11-29 02:32:17,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595920959] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:32:17,027 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:32:17,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 02:32:17,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640882773] [2023-11-29 02:32:17,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:32:17,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:32:17,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:17,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:32:17,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:32:17,029 INFO L87 Difference]: Start difference. First operand 184 states and 203 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 02:32:17,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:17,054 INFO L93 Difference]: Finished difference Result 184 states and 203 transitions. [2023-11-29 02:32:17,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:32:17,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 104 [2023-11-29 02:32:17,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:17,056 INFO L225 Difference]: With dead ends: 184 [2023-11-29 02:32:17,056 INFO L226 Difference]: Without dead ends: 183 [2023-11-29 02:32:17,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:32:17,057 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 37 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:17,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 52 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:32:17,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-29 02:32:17,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-11-29 02:32:17,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 169 states have (on average 1.047337278106509) internal successors, (177), 171 states have internal predecessors, (177), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:32:17,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 197 transitions. [2023-11-29 02:32:17,067 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 197 transitions. Word has length 104 [2023-11-29 02:32:17,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:17,068 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 197 transitions. [2023-11-29 02:32:17,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 02:32:17,068 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 197 transitions. [2023-11-29 02:32:17,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 02:32:17,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:17,070 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1] [2023-11-29 02:32:17,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 02:32:17,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 02:32:17,270 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:17,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:17,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1502231484, now seen corresponding path program 2 times [2023-11-29 02:32:17,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:17,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520442092] [2023-11-29 02:32:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:17,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:17,282 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:17,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246569739] [2023-11-29 02:32:17,282 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:32:17,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:17,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:17,284 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:17,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 02:32:17,332 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 02:32:17,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:32:17,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 02:32:17,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-29 02:32:17,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:17,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:17,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520442092] [2023-11-29 02:32:17,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:17,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246569739] [2023-11-29 02:32:17,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246569739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:17,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:17,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 02:32:17,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581409826] [2023-11-29 02:32:17,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:17,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 02:32:17,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:17,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 02:32:17,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 02:32:17,462 INFO L87 Difference]: Start difference. First operand 183 states and 197 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 1 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 02:32:17,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:17,839 INFO L93 Difference]: Finished difference Result 185 states and 199 transitions. [2023-11-29 02:32:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:32:17,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 1 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 150 [2023-11-29 02:32:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:17,842 INFO L225 Difference]: With dead ends: 185 [2023-11-29 02:32:17,842 INFO L226 Difference]: Without dead ends: 184 [2023-11-29 02:32:17,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 02:32:17,843 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 26 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:17,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 33 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:32:17,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-29 02:32:17,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2023-11-29 02:32:17,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 169 states have (on average 1.0236686390532543) internal successors, (173), 170 states have internal predecessors, (173), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:32:17,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 193 transitions. [2023-11-29 02:32:17,857 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 193 transitions. Word has length 150 [2023-11-29 02:32:17,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:17,857 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 193 transitions. [2023-11-29 02:32:17,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (2), 1 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 02:32:17,858 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 193 transitions. [2023-11-29 02:32:17,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 02:32:17,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:17,860 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2023-11-29 02:32:17,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 02:32:18,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 02:32:18,060 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:18,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:18,061 INFO L85 PathProgramCache]: Analyzing trace with hash 122303216, now seen corresponding path program 3 times [2023-11-29 02:32:18,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:18,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116298786] [2023-11-29 02:32:18,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:18,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:18,072 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:18,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178402415] [2023-11-29 02:32:18,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:32:18,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:18,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:18,074 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:18,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 02:32:18,673 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 02:32:18,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:32:18,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 02:32:18,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:26,791 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse0 (div (+ .cse1 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 2))) (and (<= |c_ULTIMATE.start_main_~x~0#1| (+ |c_ULTIMATE.start_main_~y~0#1| .cse0)) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| .cse1) 2) 0) (<= .cse0 4611686018427387903)))) is different from true [2023-11-29 02:32:42,869 WARN L876 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| .cse0) 2) 0) (<= .cse0 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse0) 2)))))) is different from true [2023-11-29 02:32:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-29 02:32:46,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:46,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:46,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116298786] [2023-11-29 02:32:46,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:46,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178402415] [2023-11-29 02:32:46,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178402415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:46,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:46,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 02:32:46,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932056170] [2023-11-29 02:32:46,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:46,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 02:32:46,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:46,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 02:32:46,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=31, Unknown=2, NotChecked=22, Total=72 [2023-11-29 02:32:46,898 INFO L87 Difference]: Start difference. First operand 182 states and 193 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (2), 1 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 02:32:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:47,007 INFO L93 Difference]: Finished difference Result 184 states and 195 transitions. [2023-11-29 02:32:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 02:32:47,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (2), 1 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 155 [2023-11-29 02:32:47,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:47,010 INFO L225 Difference]: With dead ends: 184 [2023-11-29 02:32:47,010 INFO L226 Difference]: Without dead ends: 183 [2023-11-29 02:32:47,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=26, Invalid=52, Unknown=2, NotChecked=30, Total=110 [2023-11-29 02:32:47,011 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 26 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 115 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:47,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 30 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 115 Unchecked, 0.1s Time] [2023-11-29 02:32:47,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-29 02:32:47,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 181. [2023-11-29 02:32:47,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 169 states have (on average 1.0059171597633136) internal successors, (170), 169 states have internal predecessors, (170), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 02:32:47,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 190 transitions. [2023-11-29 02:32:47,028 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 190 transitions. Word has length 155 [2023-11-29 02:32:47,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:47,029 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 190 transitions. [2023-11-29 02:32:47,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (2), 1 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 02:32:47,030 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 190 transitions. [2023-11-29 02:32:47,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-11-29 02:32:47,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:47,032 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-11-29 02:32:47,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 02:32:47,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:47,233 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:47,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:47,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1910324012, now seen corresponding path program 3 times [2023-11-29 02:32:47,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:47,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470464009] [2023-11-29 02:32:47,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:47,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:47,247 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:47,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [900121704] [2023-11-29 02:32:47,247 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:32:47,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:47,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:47,248 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:47,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 02:32:48,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-29 02:32:48,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:32:48,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 02:32:48,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:48,497 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 02:32:48,497 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:32:49,367 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 02:32:49,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:49,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470464009] [2023-11-29 02:32:49,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:49,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900121704] [2023-11-29 02:32:49,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900121704] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:32:49,368 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 02:32:49,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2023-11-29 02:32:49,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559520845] [2023-11-29 02:32:49,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 02:32:49,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 02:32:49,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:49,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 02:32:49,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2023-11-29 02:32:49,372 INFO L87 Difference]: Start difference. First operand 181 states and 190 transitions. Second operand has 24 states, 23 states have (on average 14.478260869565217) internal successors, (333), 24 states have internal predecessors, (333), 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 02:32:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:51,026 INFO L93 Difference]: Finished difference Result 386 states and 418 transitions. [2023-11-29 02:32:51,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 02:32:51,027 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 14.478260869565217) internal successors, (333), 24 states have internal predecessors, (333), 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 216 [2023-11-29 02:32:51,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:51,030 INFO L225 Difference]: With dead ends: 386 [2023-11-29 02:32:51,030 INFO L226 Difference]: Without dead ends: 385 [2023-11-29 02:32:51,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 02:32:51,032 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 145 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 1461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:51,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 995 Invalid, 1461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 02:32:51,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2023-11-29 02:32:51,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2023-11-29 02:32:51,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 361 states have (on average 1.002770083102493) internal successors, (362), 361 states have internal predecessors, (362), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 02:32:51,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 406 transitions. [2023-11-29 02:32:51,065 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 406 transitions. Word has length 216 [2023-11-29 02:32:51,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:51,065 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 406 transitions. [2023-11-29 02:32:51,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 14.478260869565217) internal successors, (333), 24 states have internal predecessors, (333), 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 02:32:51,066 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 406 transitions. [2023-11-29 02:32:51,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2023-11-29 02:32:51,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:32:51,076 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2023-11-29 02:32:51,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 02:32:51,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:51,276 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2023-11-29 02:32:51,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:32:51,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1845871020, now seen corresponding path program 4 times [2023-11-29 02:32:51,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:32:51,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122547656] [2023-11-29 02:32:51,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:32:51,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:32:51,297 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 02:32:51,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184936369] [2023-11-29 02:32:51,298 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 02:32:51,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:32:51,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:32:51,299 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:32:51,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 02:32:51,439 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 02:32:51,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:32:51,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 02:32:51,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:32:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4917 backedges. 3993 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 02:32:53,756 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:32:53,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:32:53,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122547656] [2023-11-29 02:32:53,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 02:32:53,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184936369] [2023-11-29 02:32:53,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184936369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:32:53,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:32:53,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2023-11-29 02:32:53,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256878026] [2023-11-29 02:32:53,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:32:53,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-29 02:32:53,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:32:53,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-29 02:32:53,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=348, Unknown=0, NotChecked=0, Total=650 [2023-11-29 02:32:53,761 INFO L87 Difference]: Start difference. First operand 385 states and 406 transitions. Second operand has 26 states, 26 states have (on average 13.884615384615385) internal successors, (361), 26 states have internal predecessors, (361), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 02:32:53,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:32:53,887 INFO L93 Difference]: Finished difference Result 389 states and 409 transitions. [2023-11-29 02:32:53,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:32:53,888 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 13.884615384615385) internal successors, (361), 26 states have internal predecessors, (361), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 468 [2023-11-29 02:32:53,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:32:53,888 INFO L225 Difference]: With dead ends: 389 [2023-11-29 02:32:53,888 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 02:32:53,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=306, Invalid=396, Unknown=0, NotChecked=0, Total=702 [2023-11-29 02:32:53,891 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:32:53,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 427 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:32:53,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 02:32:53,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 02:32:53,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:32:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:32:53,893 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 468 [2023-11-29 02:32:53,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:32:53,893 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:32:53,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 13.884615384615385) internal successors, (361), 26 states have internal predecessors, (361), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 02:32:53,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:32:53,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 02:32:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2023-11-29 02:32:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2023-11-29 02:32:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2023-11-29 02:32:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2023-11-29 02:32:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2023-11-29 02:32:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2023-11-29 02:32:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2023-11-29 02:32:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2023-11-29 02:32:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2023-11-29 02:32:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2023-11-29 02:32:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2023-11-29 02:32:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2023-11-29 02:32:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2023-11-29 02:32:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2023-11-29 02:32:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2023-11-29 02:32:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2023-11-29 02:32:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2023-11-29 02:32:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2023-11-29 02:32:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2023-11-29 02:32:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2023-11-29 02:32:53,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2023-11-29 02:32:53,899 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2023-11-29 02:32:53,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 02:32:54,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 02:32:54,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 02:32:54,282 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,282 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~k~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~c~0#1| 9223372036854775806)) (.cse1 (<= |ULTIMATE.start_main_~k~0#1| 5))) (or (and .cse0 (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 2 |ULTIMATE.start_main_~c~0#1|) (= 2 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 3) .cse1 (<= |ULTIMATE.start_main_~c~0#1| 9223372036854775805)) (and .cse0 (<= 5 |ULTIMATE.start_main_~x~0#1|) (= 5 |ULTIMATE.start_main_~y~0#1|) .cse2 .cse1 (<= |ULTIMATE.start_main_~x~0#1| 15) (<= 5 |ULTIMATE.start_main_~c~0#1|)) (and .cse0 (= |ULTIMATE.start_main_~c~0#1| 1) (= |ULTIMATE.start_main_~x~0#1| 1) .cse1 (= |ULTIMATE.start_main_~y~0#1| 1)) (and .cse0 (= |ULTIMATE.start_main_~y~0#1| 4) .cse2 (<= |ULTIMATE.start_main_~x~0#1| 10) .cse1 (<= 4 |ULTIMATE.start_main_~c~0#1|) (<= 4 |ULTIMATE.start_main_~x~0#1|)) (and .cse0 (= |ULTIMATE.start_main_~c~0#1| 0) (= |ULTIMATE.start_main_~y~0#1| 0) .cse1 (= |ULTIMATE.start_main_~x~0#1| 0)) (and .cse0 .cse2 (= 3 |ULTIMATE.start_main_~y~0#1|) .cse1 (<= 3 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 6) (<= 3 |ULTIMATE.start_main_~x~0#1|)))) [2023-11-29 02:32:54,282 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,282 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2023-11-29 02:32:54,282 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,283 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-29 02:32:54,283 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,283 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-11-29 02:32:54,283 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,283 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,283 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,283 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,283 INFO L899 garLoopResultBuilder]: For program point L28-2(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,283 INFO L899 garLoopResultBuilder]: For program point L28-3(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,284 INFO L899 garLoopResultBuilder]: For program point L28-4(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,284 INFO L899 garLoopResultBuilder]: For program point L28-5(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,284 INFO L899 garLoopResultBuilder]: For program point L28-6(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,284 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,284 INFO L899 garLoopResultBuilder]: For program point L28-7(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,284 INFO L895 garLoopResultBuilder]: At program point L28-8(line 28) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~k~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~c~0#1| 9223372036854775806)) (.cse2 (<= |ULTIMATE.start_main_~k~0#1| 5))) (or (and .cse0 (<= 5 |ULTIMATE.start_main_~x~0#1|) (= 5 |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2 (<= 5 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 4611686018427387897)) (and .cse0 (<= 2 |ULTIMATE.start_main_~x~0#1|) (<= 2 |ULTIMATE.start_main_~c~0#1|) (= 2 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 3) .cse2 (<= |ULTIMATE.start_main_~c~0#1| 9223372036854775805)) (and .cse0 (= |ULTIMATE.start_main_~c~0#1| 1) (= |ULTIMATE.start_main_~x~0#1| 1) .cse2 (= |ULTIMATE.start_main_~y~0#1| 1)) (and .cse0 (= |ULTIMATE.start_main_~c~0#1| 0) (= |ULTIMATE.start_main_~y~0#1| 0) .cse2 (= |ULTIMATE.start_main_~x~0#1| 0)) (and .cse0 (= |ULTIMATE.start_main_~y~0#1| 4) .cse1 .cse2 (<= |ULTIMATE.start_main_~x~0#1| 4611686018427387892) (<= 4 |ULTIMATE.start_main_~c~0#1|) (<= 4 |ULTIMATE.start_main_~x~0#1|)) (and .cse0 .cse1 (= 3 |ULTIMATE.start_main_~y~0#1|) .cse2 (<= 3 |ULTIMATE.start_main_~c~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 6) (<= 3 |ULTIMATE.start_main_~x~0#1|)))) [2023-11-29 02:32:54,284 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,284 INFO L899 garLoopResultBuilder]: For program point L28-9(lines 27 36) no Hoare annotation was computed. [2023-11-29 02:32:54,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-29 02:32:54,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-29 02:32:54,285 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,285 INFO L899 garLoopResultBuilder]: For program point L37-1(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,285 INFO L899 garLoopResultBuilder]: For program point L37-2(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,285 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,285 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-11-29 02:32:54,285 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,285 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 02:32:54,286 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2023-11-29 02:32:54,286 INFO L899 garLoopResultBuilder]: For program point L37-5(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,286 INFO L899 garLoopResultBuilder]: For program point L37-6(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,286 INFO L902 garLoopResultBuilder]: At program point L37-7(line 37) the Hoare annotation is: true [2023-11-29 02:32:54,286 INFO L899 garLoopResultBuilder]: For program point L37-8(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,286 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,286 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,286 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,286 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-29 02:32:54,287 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-29 02:32:54,287 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 02:32:54,287 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-11-29 02:32:54,287 INFO L899 garLoopResultBuilder]: For program point L34-1(line 34) no Hoare annotation was computed. [2023-11-29 02:32:54,287 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,287 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,287 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-29 02:32:54,287 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 34) no Hoare annotation was computed. [2023-11-29 02:32:54,287 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2023-11-29 02:32:54,288 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2023-11-29 02:32:54,288 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-11-29 02:32:54,288 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-29 02:32:54,288 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2023-11-29 02:32:54,288 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2023-11-29 02:32:54,288 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: true [2023-11-29 02:32:54,288 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2023-11-29 02:32:54,291 INFO L445 BasicCegarLoop]: Path program histogram: [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:32:54,293 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:32:54,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:32:54 BoogieIcfgContainer [2023-11-29 02:32:54,307 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:32:54,308 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:32:54,308 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:32:54,308 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:32:54,309 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:32:08" (3/4) ... [2023-11-29 02:32:54,310 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:32:54,313 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 02:32:54,318 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-29 02:32:54,318 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-29 02:32:54,318 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 02:32:54,319 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 02:32:54,398 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:32:54,399 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:32:54,399 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:32:54,399 INFO L158 Benchmark]: Toolchain (without parser) took 46842.21ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 120.0MB in the beginning and 53.3MB in the end (delta: 66.7MB). Peak memory consumption was 97.4MB. Max. memory is 16.1GB. [2023-11-29 02:32:54,400 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 91.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:32:54,400 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.40ms. Allocated memory is still 151.0MB. Free memory was 120.0MB in the beginning and 109.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:32:54,401 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.22ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 108.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:32:54,401 INFO L158 Benchmark]: Boogie Preprocessor took 37.62ms. Allocated memory is still 151.0MB. Free memory was 108.2MB in the beginning and 106.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:32:54,402 INFO L158 Benchmark]: RCFGBuilder took 358.69ms. Allocated memory is still 151.0MB. Free memory was 106.1MB in the beginning and 120.1MB in the end (delta: -14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 02:32:54,402 INFO L158 Benchmark]: TraceAbstraction took 46073.91ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 120.1MB in the beginning and 58.6MB in the end (delta: 61.5MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. [2023-11-29 02:32:54,403 INFO L158 Benchmark]: Witness Printer took 91.04ms. Allocated memory is still 182.5MB. Free memory was 58.6MB in the beginning and 53.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:32:54,405 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 91.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.40ms. Allocated memory is still 151.0MB. Free memory was 120.0MB in the beginning and 109.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.22ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 108.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.62ms. Allocated memory is still 151.0MB. Free memory was 108.2MB in the beginning and 106.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.69ms. Allocated memory is still 151.0MB. Free memory was 106.1MB in the beginning and 120.1MB in the end (delta: -14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 46073.91ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 120.1MB in the beginning and 58.6MB in the end (delta: 61.5MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. * Witness Printer took 91.04ms. Allocated memory is still 182.5MB. Free memory was 58.6MB in the beginning and 53.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: 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: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: 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, 57 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 46.0s, OverallIterations: 21, TraceHistogramMax: 23, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 894 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 880 mSDsluCounter, 2789 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 115 IncrementalHoareTripleChecker+Unchecked, 2086 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3137 IncrementalHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 703 mSDtfsCounter, 3137 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2222 GetRequests, 2056 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred in iteration=20, InterpolantAutomatonStates: 153, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 133 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 28 PreInvPairs, 41 NumberOfFragments, 244 HoareAnnotationTreeSize, 28 FomulaSimplifications, 619 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 34.1s InterpolantComputationTime, 1570 NumberOfCodeBlocks, 1234 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 2185 ConstructedInterpolants, 4 QuantifiedInterpolants, 10829 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2357 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 29 InterpolantComputations, 13 PerfectInterpolantSequences, 6677/8787 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 22 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k) && (2 <= x)) && (2 <= c)) && (2 == y)) && (x <= 3)) && (k <= 5)) && (c <= 9223372036854775805)) || (((((((0 <= k) && (5 <= x)) && (5 == y)) && (c <= 9223372036854775806)) && (k <= 5)) && (x <= 15)) && (5 <= c))) || (((((0 <= k) && (c == 1)) && (x == 1)) && (k <= 5)) && (y == 1))) || (((((((0 <= k) && (y == 4)) && (c <= 9223372036854775806)) && (x <= 10)) && (k <= 5)) && (4 <= c)) && (4 <= x))) || (((((0 <= k) && (c == 0)) && (y == 0)) && (k <= 5)) && (x == 0))) || (((((((0 <= k) && (c <= 9223372036854775806)) && (3 == y)) && (k <= 5)) && (3 <= c)) && (x <= 6)) && (3 <= x))) RESULT: Ultimate proved your program to be correct! [2023-11-29 02:32:54,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a8c3749-2c56-439f-b827-496a562b9b62/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE