./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx --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 6c37a77a9f4db0db15bb3c5a5baacfcd5e1536d243d9987efda949cfc27e3fb7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:28:49,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:28:49,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:28:49,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:28:49,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:28:49,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:28:49,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:28:49,260 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:28:49,261 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:28:49,262 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:28:49,262 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:28:49,263 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:28:49,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:28:49,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:28:49,269 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:28:49,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:28:49,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:28:49,272 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:28:49,276 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:28:49,276 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:28:49,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:28:49,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:28:49,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:28:49,279 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:28:49,279 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:28:49,279 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:28:49,280 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:28:49,280 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:28:49,288 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:28:49,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:28:49,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:28:49,290 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:28:49,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:28:49,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:49,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:28:49,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:28:49,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:28:49,292 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:28:49,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:28:49,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:28:49,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:28:49,296 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:28:49,296 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:28:49,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:28:49,297 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_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c37a77a9f4db0db15bb3c5a5baacfcd5e1536d243d9987efda949cfc27e3fb7 [2023-11-21 22:28:49,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:28:49,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:28:49,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:28:49,654 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:28:49,654 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:28:49,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c [2023-11-21 22:28:52,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:28:53,022 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:28:53,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c [2023-11-21 22:28:53,031 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/data/c7fdb3deb/229a50c6c7074bda80a9af8b840f1e26/FLAG6e60db7e5 [2023-11-21 22:28:53,045 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/data/c7fdb3deb/229a50c6c7074bda80a9af8b840f1e26 [2023-11-21 22:28:53,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:28:53,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:28:53,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:53,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:28:53,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:28:53,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b4491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53, skipping insertion in model container [2023-11-21 22:28:53,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,081 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:28:53,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:53,302 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:28:53,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:53,336 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:28:53,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53 WrapperNode [2023-11-21 22:28:53,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:53,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:53,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:28:53,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:28:53,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,378 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 100 [2023-11-21 22:28:53,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:53,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:28:53,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:28:53,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:28:53,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,394 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,405 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:28:53,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,405 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,414 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:28:53,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:28:53,423 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:28:53,423 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:28:53,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (1/1) ... [2023-11-21 22:28:53,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:53,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:53,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:28:53,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:28:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:28:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:28:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:28:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:28:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:28:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:28:53,612 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:28:53,614 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:28:54,127 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:28:54,206 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:28:54,207 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:28:54,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:54 BoogieIcfgContainer [2023-11-21 22:28:54,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:28:54,217 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:28:54,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:28:54,223 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:28:54,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:28:53" (1/3) ... [2023-11-21 22:28:54,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b2e10e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:28:54, skipping insertion in model container [2023-11-21 22:28:54,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:53" (2/3) ... [2023-11-21 22:28:54,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b2e10e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:28:54, skipping insertion in model container [2023-11-21 22:28:54,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:54" (3/3) ... [2023-11-21 22:28:54,227 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound50.c [2023-11-21 22:28:54,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:28:54,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2023-11-21 22:28:54,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:28:54,305 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;@44a45b1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:28:54,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2023-11-21 22:28:54,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 58 states have (on average 1.9482758620689655) internal successors, (113), 110 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) [2023-11-21 22:28:54,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:28:54,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:54,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:28:54,324 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:54,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:54,329 INFO L85 PathProgramCache]: Analyzing trace with hash 187138, now seen corresponding path program 1 times [2023-11-21 22:28:54,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:54,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619503164] [2023-11-21 22:28:54,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:54,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:28:54,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:54,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619503164] [2023-11-21 22:28:54,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619503164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:54,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:54,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:28:54,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261608398] [2023-11-21 22:28:54,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:54,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:28:54,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:54,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:28:54,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:28:54,544 INFO L87 Difference]: Start difference. First operand has 118 states, 58 states have (on average 1.9482758620689655) internal successors, (113), 110 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) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:28:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:54,586 INFO L93 Difference]: Finished difference Result 167 states and 177 transitions. [2023-11-21 22:28:54,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:28:54,589 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-21 22:28:54,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:54,597 INFO L225 Difference]: With dead ends: 167 [2023-11-21 22:28:54,598 INFO L226 Difference]: Without dead ends: 111 [2023-11-21 22:28:54,601 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 [2023-11-21 22:28:54,605 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:54,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:28:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-21 22:28:54,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-21 22:28:54,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 57 states have (on average 1.8596491228070176) internal successors, (106), 104 states have internal predecessors, (106), 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) [2023-11-21 22:28:54,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 116 transitions. [2023-11-21 22:28:54,662 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 116 transitions. Word has length 3 [2023-11-21 22:28:54,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:54,663 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 116 transitions. [2023-11-21 22:28:54,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:28:54,663 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 116 transitions. [2023-11-21 22:28:54,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:28:54,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:54,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:28:54,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:28:54,665 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:54,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:54,666 INFO L85 PathProgramCache]: Analyzing trace with hash 184737, now seen corresponding path program 1 times [2023-11-21 22:28:54,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:54,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59831700] [2023-11-21 22:28:54,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:54,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:54,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:28:54,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:54,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59831700] [2023-11-21 22:28:54,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59831700] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:54,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:54,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:28:54,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334028875] [2023-11-21 22:28:54,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:54,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:28:54,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:54,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:54,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:54,783 INFO L87 Difference]: Start difference. First operand 111 states and 116 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:28:54,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:54,855 INFO L93 Difference]: Finished difference Result 163 states and 169 transitions. [2023-11-21 22:28:54,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:28:54,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-21 22:28:54,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:54,858 INFO L225 Difference]: With dead ends: 163 [2023-11-21 22:28:54,859 INFO L226 Difference]: Without dead ends: 115 [2023-11-21 22:28:54,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:28:54,862 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 4 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:54,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 328 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:28:54,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-21 22:28:54,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-11-21 22:28:54,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 61 states have (on average 1.8032786885245902) internal successors, (110), 108 states have internal predecessors, (110), 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) [2023-11-21 22:28:54,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 120 transitions. [2023-11-21 22:28:54,880 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 120 transitions. Word has length 3 [2023-11-21 22:28:54,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:54,880 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 120 transitions. [2023-11-21 22:28:54,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:28:54,881 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 120 transitions. [2023-11-21 22:28:54,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:28:54,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:54,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:28:54,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:28:54,882 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:54,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:54,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1208573546, now seen corresponding path program 1 times [2023-11-21 22:28:54,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:54,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233036231] [2023-11-21 22:28:54,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:54,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:28:54,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:54,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233036231] [2023-11-21 22:28:54,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233036231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:54,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:54,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:28:54,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389088547] [2023-11-21 22:28:54,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:54,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:28:54,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:54,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:54,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:54,940 INFO L87 Difference]: Start difference. First operand 115 states and 120 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-11-21 22:28:55,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:55,107 INFO L93 Difference]: Finished difference Result 209 states and 219 transitions. [2023-11-21 22:28:55,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:55,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2023-11-21 22:28:55,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:55,111 INFO L225 Difference]: With dead ends: 209 [2023-11-21 22:28:55,111 INFO L226 Difference]: Without dead ends: 189 [2023-11-21 22:28:55,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:55,114 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 68 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:55,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 196 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:28:55,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-21 22:28:55,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 154. [2023-11-21 22:28:55,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 96 states have (on average 1.6354166666666667) internal successors, (157), 143 states have internal predecessors, (157), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:28:55,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 175 transitions. [2023-11-21 22:28:55,137 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 175 transitions. Word has length 6 [2023-11-21 22:28:55,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:55,138 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 175 transitions. [2023-11-21 22:28:55,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-11-21 22:28:55,138 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 175 transitions. [2023-11-21 22:28:55,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-21 22:28:55,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:55,140 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:55,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:28:55,140 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:55,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:55,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1956870518, now seen corresponding path program 1 times [2023-11-21 22:28:55,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:55,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208638233] [2023-11-21 22:28:55,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:55,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:55,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:28:55,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306724093] [2023-11-21 22:28:55,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:55,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:55,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:55,183 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:28:55,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:28:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:55,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:28:55,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:55,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:28:55,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:55,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208638233] [2023-11-21 22:28:55,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:28:55,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306724093] [2023-11-21 22:28:55,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306724093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:55,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:55,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:28:55,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712997862] [2023-11-21 22:28:55,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:55,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:28:55,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:55,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:55,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:55,399 INFO L87 Difference]: Start difference. First operand 154 states and 175 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:28:55,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:55,590 INFO L93 Difference]: Finished difference Result 193 states and 203 transitions. [2023-11-21 22:28:55,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:55,591 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-21 22:28:55,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:55,597 INFO L225 Difference]: With dead ends: 193 [2023-11-21 22:28:55,597 INFO L226 Difference]: Without dead ends: 185 [2023-11-21 22:28:55,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:55,608 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 53 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:55,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 170 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:28:55,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-21 22:28:55,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 165. [2023-11-21 22:28:55,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 106 states have (on average 1.5849056603773586) internal successors, (168), 153 states have internal predecessors, (168), 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) [2023-11-21 22:28:55,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 188 transitions. [2023-11-21 22:28:55,650 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 188 transitions. Word has length 23 [2023-11-21 22:28:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:55,653 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 188 transitions. [2023-11-21 22:28:55,653 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:28:55,653 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 188 transitions. [2023-11-21 22:28:55,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 22:28:55,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:55,655 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:55,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:28:55,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:55,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:55,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:55,877 INFO L85 PathProgramCache]: Analyzing trace with hash -533443840, now seen corresponding path program 1 times [2023-11-21 22:28:55,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:55,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123752239] [2023-11-21 22:28:55,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:55,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:55,895 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:28:55,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [760172878] [2023-11-21 22:28:55,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:55,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:55,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:55,900 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:28:55,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:28:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:55,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:28:55,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:56,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:28:56,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:56,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:56,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123752239] [2023-11-21 22:28:56,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:28:56,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760172878] [2023-11-21 22:28:56,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760172878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:56,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:56,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:28:56,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354226273] [2023-11-21 22:28:56,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:56,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:28:56,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:56,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:56,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:56,037 INFO L87 Difference]: Start difference. First operand 165 states and 188 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:28:56,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:56,182 INFO L93 Difference]: Finished difference Result 181 states and 199 transitions. [2023-11-21 22:28:56,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:56,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-11-21 22:28:56,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:56,185 INFO L225 Difference]: With dead ends: 181 [2023-11-21 22:28:56,185 INFO L226 Difference]: Without dead ends: 179 [2023-11-21 22:28:56,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:56,187 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 54 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:56,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 165 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:28:56,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-21 22:28:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 165. [2023-11-21 22:28:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 106 states have (on average 1.5660377358490567) internal successors, (166), 153 states have internal predecessors, (166), 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) [2023-11-21 22:28:56,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2023-11-21 22:28:56,215 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 24 [2023-11-21 22:28:56,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:56,215 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2023-11-21 22:28:56,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:28:56,215 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2023-11-21 22:28:56,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 22:28:56,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:56,217 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:56,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:28:56,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:56,430 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:56,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:56,430 INFO L85 PathProgramCache]: Analyzing trace with hash 643110220, now seen corresponding path program 1 times [2023-11-21 22:28:56,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:56,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645786811] [2023-11-21 22:28:56,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:56,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:56,450 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:28:56,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945324324] [2023-11-21 22:28:56,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:56,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:56,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:56,456 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:28:56,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:28:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:56,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:28:56,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:56,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:28:56,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:56,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:56,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645786811] [2023-11-21 22:28:56,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:28:56,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945324324] [2023-11-21 22:28:56,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945324324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:56,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:56,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:28:56,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050092588] [2023-11-21 22:28:56,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:56,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:28:56,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:56,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:56,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:56,593 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:28:56,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:56,710 INFO L93 Difference]: Finished difference Result 187 states and 197 transitions. [2023-11-21 22:28:56,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:56,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-11-21 22:28:56,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:56,712 INFO L225 Difference]: With dead ends: 187 [2023-11-21 22:28:56,712 INFO L226 Difference]: Without dead ends: 179 [2023-11-21 22:28:56,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:56,716 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 45 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:56,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 188 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:28:56,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-21 22:28:56,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 168. [2023-11-21 22:28:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 109 states have (on average 1.5045871559633028) internal successors, (164), 156 states have internal predecessors, (164), 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) [2023-11-21 22:28:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 184 transitions. [2023-11-21 22:28:56,735 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 184 transitions. Word has length 25 [2023-11-21 22:28:56,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:56,736 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 184 transitions. [2023-11-21 22:28:56,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:28:56,737 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 184 transitions. [2023-11-21 22:28:56,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 22:28:56,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:56,738 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:56,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:28:56,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:56,956 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:56,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:56,957 INFO L85 PathProgramCache]: Analyzing trace with hash -446366706, now seen corresponding path program 1 times [2023-11-21 22:28:56,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:56,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969884337] [2023-11-21 22:28:56,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:56,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:56,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:28:56,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1272315180] [2023-11-21 22:28:56,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:56,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:56,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:56,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:28:56,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:28:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:57,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:28:57,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:28:57,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:57,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:57,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969884337] [2023-11-21 22:28:57,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:28:57,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272315180] [2023-11-21 22:28:57,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272315180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:57,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:57,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:28:57,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227577887] [2023-11-21 22:28:57,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:57,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:28:57,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:57,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:57,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:57,141 INFO L87 Difference]: Start difference. First operand 168 states and 184 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:28:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:57,291 INFO L93 Difference]: Finished difference Result 179 states and 189 transitions. [2023-11-21 22:28:57,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:28:57,292 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-21 22:28:57,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:57,293 INFO L225 Difference]: With dead ends: 179 [2023-11-21 22:28:57,293 INFO L226 Difference]: Without dead ends: 177 [2023-11-21 22:28:57,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:57,295 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 93 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:57,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 165 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:28:57,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-21 22:28:57,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 168. [2023-11-21 22:28:57,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 109 states have (on average 1.4862385321100917) internal successors, (162), 156 states have internal predecessors, (162), 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) [2023-11-21 22:28:57,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 182 transitions. [2023-11-21 22:28:57,306 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 182 transitions. Word has length 27 [2023-11-21 22:28:57,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:57,306 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 182 transitions. [2023-11-21 22:28:57,307 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:28:57,307 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 182 transitions. [2023-11-21 22:28:57,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 22:28:57,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:57,308 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:57,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:28:57,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:57,529 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:57,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:57,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1936904594, now seen corresponding path program 1 times [2023-11-21 22:28:57,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:57,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077928112] [2023-11-21 22:28:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:57,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:57,543 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:28:57,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489786636] [2023-11-21 22:28:57,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:57,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:57,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:57,545 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:28:57,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:28:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:57,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:28:57,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:57,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:28:57,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:57,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:57,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077928112] [2023-11-21 22:28:57,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:28:57,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489786636] [2023-11-21 22:28:57,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489786636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:57,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:57,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:28:57,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921535261] [2023-11-21 22:28:57,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:57,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:28:57,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:57,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:57,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:57,885 INFO L87 Difference]: Start difference. First operand 168 states and 182 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:28:58,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:58,047 INFO L93 Difference]: Finished difference Result 173 states and 183 transitions. [2023-11-21 22:28:58,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:58,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-21 22:28:58,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:58,050 INFO L225 Difference]: With dead ends: 173 [2023-11-21 22:28:58,050 INFO L226 Difference]: Without dead ends: 145 [2023-11-21 22:28:58,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:58,052 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 73 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:58,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 146 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:28:58,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-11-21 22:28:58,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2023-11-21 22:28:58,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 88 states have (on average 1.5568181818181819) internal successors, (137), 135 states have internal predecessors, (137), 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) [2023-11-21 22:28:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 153 transitions. [2023-11-21 22:28:58,063 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 153 transitions. Word has length 31 [2023-11-21 22:28:58,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:58,065 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 153 transitions. [2023-11-21 22:28:58,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:28:58,066 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 153 transitions. [2023-11-21 22:28:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 22:28:58,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:58,070 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:58,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:28:58,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:58,284 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:58,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:58,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2066783847, now seen corresponding path program 1 times [2023-11-21 22:28:58,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:58,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937200879] [2023-11-21 22:28:58,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:58,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:58,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:28:58,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1390076358] [2023-11-21 22:28:58,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:58,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:58,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:58,300 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:28:58,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:28:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:58,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:28:58,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:58,532 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:28:58,532 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:58,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:58,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937200879] [2023-11-21 22:28:58,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:28:58,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390076358] [2023-11-21 22:28:58,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390076358] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:58,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:58,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:28:58,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682733554] [2023-11-21 22:28:58,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:58,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:28:58,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:58,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:58,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:58,536 INFO L87 Difference]: Start difference. First operand 145 states and 153 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:28:58,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:58,651 INFO L93 Difference]: Finished difference Result 145 states and 153 transitions. [2023-11-21 22:28:58,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:28:58,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2023-11-21 22:28:58,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:58,653 INFO L225 Difference]: With dead ends: 145 [2023-11-21 22:28:58,653 INFO L226 Difference]: Without dead ends: 139 [2023-11-21 22:28:58,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:58,654 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 162 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:58,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 105 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:28:58,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-21 22:28:58,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2023-11-21 22:28:58,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 129 states have internal predecessors, (131), 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) [2023-11-21 22:28:58,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 147 transitions. [2023-11-21 22:28:58,663 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 147 transitions. Word has length 42 [2023-11-21 22:28:58,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:58,664 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 147 transitions. [2023-11-21 22:28:58,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:28:58,664 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 147 transitions. [2023-11-21 22:28:58,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 22:28:58,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:58,665 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:58,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:28:58,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-21 22:28:58,880 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:58,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:58,880 INFO L85 PathProgramCache]: Analyzing trace with hash 354210293, now seen corresponding path program 1 times [2023-11-21 22:28:58,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:58,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643160654] [2023-11-21 22:28:58,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:58,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:58,895 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:28:58,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1608608393] [2023-11-21 22:28:58,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:58,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:58,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:58,897 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:28:58,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 22:28:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:58,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:28:58,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:28:59,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:59,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:59,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643160654] [2023-11-21 22:28:59,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:28:59,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608608393] [2023-11-21 22:28:59,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608608393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:59,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:59,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:28:59,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680939570] [2023-11-21 22:28:59,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:59,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:28:59,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:59,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:59,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:59,144 INFO L87 Difference]: Start difference. First operand 139 states and 147 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:28:59,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:59,257 INFO L93 Difference]: Finished difference Result 142 states and 150 transitions. [2023-11-21 22:28:59,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:28:59,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2023-11-21 22:28:59,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:59,264 INFO L225 Difference]: With dead ends: 142 [2023-11-21 22:28:59,264 INFO L226 Difference]: Without dead ends: 141 [2023-11-21 22:28:59,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:59,267 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:59,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:28:59,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-21 22:28:59,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-11-21 22:28:59,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 90 states have (on average 1.4777777777777779) internal successors, (133), 131 states have internal predecessors, (133), 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) [2023-11-21 22:28:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 149 transitions. [2023-11-21 22:28:59,277 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 149 transitions. Word has length 43 [2023-11-21 22:28:59,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:59,278 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 149 transitions. [2023-11-21 22:28:59,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:28:59,278 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 149 transitions. [2023-11-21 22:28:59,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-21 22:28:59,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:59,286 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:59,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:28:59,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-21 22:28:59,509 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:59,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:59,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1093676375, now seen corresponding path program 1 times [2023-11-21 22:28:59,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:59,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307204791] [2023-11-21 22:28:59,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:59,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:59,528 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:28:59,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [86842101] [2023-11-21 22:28:59,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:59,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:59,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:59,534 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:28:59,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 22:28:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:59,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:28:59,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:28:59,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:59,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:59,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307204791] [2023-11-21 22:28:59,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:28:59,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86842101] [2023-11-21 22:28:59,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86842101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:59,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:59,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:28:59,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760087578] [2023-11-21 22:28:59,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:59,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:28:59,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:59,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:28:59,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:28:59,705 INFO L87 Difference]: Start difference. First operand 141 states and 149 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:28:59,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:59,737 INFO L93 Difference]: Finished difference Result 141 states and 149 transitions. [2023-11-21 22:28:59,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:28:59,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2023-11-21 22:28:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:59,740 INFO L225 Difference]: With dead ends: 141 [2023-11-21 22:28:59,740 INFO L226 Difference]: Without dead ends: 140 [2023-11-21 22:28:59,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:28:59,742 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 75 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:59,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 202 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:28:59,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-21 22:28:59,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-11-21 22:28:59,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 90 states have (on average 1.4666666666666666) internal successors, (132), 130 states have internal predecessors, (132), 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) [2023-11-21 22:28:59,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 148 transitions. [2023-11-21 22:28:59,752 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 148 transitions. Word has length 45 [2023-11-21 22:28:59,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:59,752 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 148 transitions. [2023-11-21 22:28:59,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:28:59,753 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 148 transitions. [2023-11-21 22:28:59,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 22:28:59,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:59,754 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:59,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:28:59,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-21 22:28:59,971 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:28:59,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:59,971 INFO L85 PathProgramCache]: Analyzing trace with hash -455770702, now seen corresponding path program 1 times [2023-11-21 22:28:59,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:59,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288548925] [2023-11-21 22:28:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:59,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:59,983 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:28:59,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859462940] [2023-11-21 22:28:59,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:59,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:28:59,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:59,985 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:00,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 22:29:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:00,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:29:00,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:29:00,128 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:29:00,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:00,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288548925] [2023-11-21 22:29:00,129 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:00,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859462940] [2023-11-21 22:29:00,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859462940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:00,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:00,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:29:00,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409733920] [2023-11-21 22:29:00,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:00,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:29:00,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:00,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:29:00,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:29:00,132 INFO L87 Difference]: Start difference. First operand 140 states and 148 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:29:00,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:00,203 INFO L93 Difference]: Finished difference Result 184 states and 192 transitions. [2023-11-21 22:29:00,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:29:00,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2023-11-21 22:29:00,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:00,206 INFO L225 Difference]: With dead ends: 184 [2023-11-21 22:29:00,206 INFO L226 Difference]: Without dead ends: 183 [2023-11-21 22:29:00,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:29:00,208 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 70 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:00,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 465 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:29:00,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-21 22:29:00,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 153. [2023-11-21 22:29:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 101 states have (on average 1.495049504950495) internal successors, (151), 141 states have internal predecessors, (151), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-21 22:29:00,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 171 transitions. [2023-11-21 22:29:00,222 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 171 transitions. Word has length 46 [2023-11-21 22:29:00,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:00,223 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 171 transitions. [2023-11-21 22:29:00,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:29:00,224 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 171 transitions. [2023-11-21 22:29:00,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-21 22:29:00,225 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:00,225 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:00,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:00,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:00,440 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:00,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:00,441 INFO L85 PathProgramCache]: Analyzing trace with hash 91021044, now seen corresponding path program 1 times [2023-11-21 22:29:00,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:00,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452482241] [2023-11-21 22:29:00,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:00,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:00,453 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:00,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19832924] [2023-11-21 22:29:00,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:00,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:00,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:00,455 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:00,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 22:29:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:00,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:29:00,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:29:00,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:29:00,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:00,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452482241] [2023-11-21 22:29:00,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:00,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19832924] [2023-11-21 22:29:00,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19832924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:00,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:00,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:29:00,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571281038] [2023-11-21 22:29:00,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:00,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:29:00,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:00,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:29:00,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:29:00,599 INFO L87 Difference]: Start difference. First operand 153 states and 171 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:29:00,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:00,683 INFO L93 Difference]: Finished difference Result 153 states and 171 transitions. [2023-11-21 22:29:00,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:29:00,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2023-11-21 22:29:00,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:00,688 INFO L225 Difference]: With dead ends: 153 [2023-11-21 22:29:00,688 INFO L226 Difference]: Without dead ends: 144 [2023-11-21 22:29:00,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:29:00,690 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 78 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:00,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 120 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:29:00,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2023-11-21 22:29:00,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2023-11-21 22:29:00,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 132 states have internal predecessors, (138), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-21 22:29:00,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 158 transitions. [2023-11-21 22:29:00,704 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 158 transitions. Word has length 48 [2023-11-21 22:29:00,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:00,705 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 158 transitions. [2023-11-21 22:29:00,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:29:00,705 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 158 transitions. [2023-11-21 22:29:00,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-21 22:29:00,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:00,707 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:00,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:00,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:00,922 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:00,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:00,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1473314882, now seen corresponding path program 1 times [2023-11-21 22:29:00,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:00,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895730037] [2023-11-21 22:29:00,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:00,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:00,940 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:00,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184275353] [2023-11-21 22:29:00,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:00,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:00,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:00,956 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:00,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-21 22:29:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:01,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:29:01,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:01,120 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:29:01,121 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:29:01,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:29:01,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:01,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895730037] [2023-11-21 22:29:01,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:01,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184275353] [2023-11-21 22:29:01,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184275353] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:29:01,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:29:01,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-21 22:29:01,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562361336] [2023-11-21 22:29:01,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:29:01,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:29:01,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:01,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:29:01,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:01,283 INFO L87 Difference]: Start difference. First operand 144 states and 158 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-21 22:29:01,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:01,463 INFO L93 Difference]: Finished difference Result 266 states and 313 transitions. [2023-11-21 22:29:01,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:01,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 49 [2023-11-21 22:29:01,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:01,467 INFO L225 Difference]: With dead ends: 266 [2023-11-21 22:29:01,467 INFO L226 Difference]: Without dead ends: 257 [2023-11-21 22:29:01,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:01,468 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 180 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:01,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 191 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:29:01,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-11-21 22:29:01,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 135. [2023-11-21 22:29:01,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 101 states have (on average 1.2376237623762376) internal successors, (125), 123 states have internal predecessors, (125), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-21 22:29:01,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 145 transitions. [2023-11-21 22:29:01,483 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 145 transitions. Word has length 49 [2023-11-21 22:29:01,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:01,483 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 145 transitions. [2023-11-21 22:29:01,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-21 22:29:01,484 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 145 transitions. [2023-11-21 22:29:01,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-21 22:29:01,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:01,485 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:01,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:01,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-21 22:29:01,700 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:01,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:01,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1224528827, now seen corresponding path program 1 times [2023-11-21 22:29:01,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:01,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732470460] [2023-11-21 22:29:01,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:01,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:01,713 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:01,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736811153] [2023-11-21 22:29:01,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:01,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:01,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:01,715 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:01,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-21 22:29:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:01,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:29:01,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 22:29:01,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:29:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 22:29:02,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:02,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732470460] [2023-11-21 22:29:02,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:02,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736811153] [2023-11-21 22:29:02,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736811153] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:29:02,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:29:02,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-21 22:29:02,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371963636] [2023-11-21 22:29:02,021 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:29:02,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:29:02,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:02,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:29:02,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:02,023 INFO L87 Difference]: Start difference. First operand 135 states and 145 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-21 22:29:02,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:02,252 INFO L93 Difference]: Finished difference Result 347 states and 382 transitions. [2023-11-21 22:29:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:02,253 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 60 [2023-11-21 22:29:02,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:02,255 INFO L225 Difference]: With dead ends: 347 [2023-11-21 22:29:02,256 INFO L226 Difference]: Without dead ends: 345 [2023-11-21 22:29:02,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:29:02,258 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 219 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:02,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 288 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:29:02,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-11-21 22:29:02,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 233. [2023-11-21 22:29:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 191 states have (on average 1.2617801047120418) internal successors, (241), 213 states have internal predecessors, (241), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-21 22:29:02,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 277 transitions. [2023-11-21 22:29:02,284 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 277 transitions. Word has length 60 [2023-11-21 22:29:02,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:02,284 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 277 transitions. [2023-11-21 22:29:02,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-21 22:29:02,285 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 277 transitions. [2023-11-21 22:29:02,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-21 22:29:02,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:02,286 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:02,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:02,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-21 22:29:02,506 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:02,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:02,507 INFO L85 PathProgramCache]: Analyzing trace with hash -938677440, now seen corresponding path program 1 times [2023-11-21 22:29:02,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:02,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038017870] [2023-11-21 22:29:02,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:02,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:02,543 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:02,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2086610161] [2023-11-21 22:29:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:02,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:02,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:02,545 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:02,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 22:29:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:02,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:29:02,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-21 22:29:02,701 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:29:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-21 22:29:02,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:02,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038017870] [2023-11-21 22:29:02,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:02,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086610161] [2023-11-21 22:29:02,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086610161] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:29:02,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:29:02,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-21 22:29:02,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155709558] [2023-11-21 22:29:02,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:29:02,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:29:02,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:02,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:29:02,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:02,868 INFO L87 Difference]: Start difference. First operand 233 states and 277 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-21 22:29:03,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:03,186 INFO L93 Difference]: Finished difference Result 343 states and 383 transitions. [2023-11-21 22:29:03,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:03,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 65 [2023-11-21 22:29:03,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:03,192 INFO L225 Difference]: With dead ends: 343 [2023-11-21 22:29:03,192 INFO L226 Difference]: Without dead ends: 338 [2023-11-21 22:29:03,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:29:03,193 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 250 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:03,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 228 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:29:03,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-11-21 22:29:03,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 236. [2023-11-21 22:29:03,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 195 states have (on average 1.2102564102564102) internal successors, (236), 214 states have internal predecessors, (236), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-21 22:29:03,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 276 transitions. [2023-11-21 22:29:03,222 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 276 transitions. Word has length 65 [2023-11-21 22:29:03,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:03,222 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 276 transitions. [2023-11-21 22:29:03,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-21 22:29:03,223 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 276 transitions. [2023-11-21 22:29:03,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-21 22:29:03,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:03,224 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:03,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:03,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-21 22:29:03,444 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:03,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:03,444 INFO L85 PathProgramCache]: Analyzing trace with hash -125885310, now seen corresponding path program 1 times [2023-11-21 22:29:03,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:03,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928946161] [2023-11-21 22:29:03,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:03,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:03,459 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:03,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [600354810] [2023-11-21 22:29:03,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:03,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:03,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:03,461 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:03,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-21 22:29:03,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:03,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:29:03,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-21 22:29:03,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:29:03,932 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-21 22:29:03,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:03,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928946161] [2023-11-21 22:29:03,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:03,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600354810] [2023-11-21 22:29:03,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600354810] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:29:03,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:29:03,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-21 22:29:03,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614091470] [2023-11-21 22:29:03,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:29:03,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:29:03,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:03,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:29:03,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:29:03,937 INFO L87 Difference]: Start difference. First operand 236 states and 276 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-21 22:29:04,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:04,224 INFO L93 Difference]: Finished difference Result 297 states and 341 transitions. [2023-11-21 22:29:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:29:04,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 67 [2023-11-21 22:29:04,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:04,227 INFO L225 Difference]: With dead ends: 297 [2023-11-21 22:29:04,227 INFO L226 Difference]: Without dead ends: 288 [2023-11-21 22:29:04,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:29:04,229 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 147 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:04,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 233 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:29:04,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-11-21 22:29:04,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 246. [2023-11-21 22:29:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 209 states have (on average 1.124401913875598) internal successors, (235), 222 states have internal predecessors, (235), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-21 22:29:04,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 279 transitions. [2023-11-21 22:29:04,254 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 279 transitions. Word has length 67 [2023-11-21 22:29:04,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:04,254 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 279 transitions. [2023-11-21 22:29:04,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-21 22:29:04,255 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 279 transitions. [2023-11-21 22:29:04,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-21 22:29:04,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:04,256 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:04,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-21 22:29:04,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-21 22:29:04,472 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:04,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:04,473 INFO L85 PathProgramCache]: Analyzing trace with hash -716696124, now seen corresponding path program 1 times [2023-11-21 22:29:04,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:04,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090869278] [2023-11-21 22:29:04,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:04,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:04,489 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:04,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221741318] [2023-11-21 22:29:04,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:04,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:04,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:04,491 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:04,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-21 22:29:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:04,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:29:04,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:04,822 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-21 22:29:04,822 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:29:04,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:04,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090869278] [2023-11-21 22:29:04,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:04,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221741318] [2023-11-21 22:29:04,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221741318] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:04,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:04,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:29:04,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996538183] [2023-11-21 22:29:04,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:04,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:29:04,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:04,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:29:04,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:04,826 INFO L87 Difference]: Start difference. First operand 246 states and 279 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-21 22:29:04,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:04,970 INFO L93 Difference]: Finished difference Result 248 states and 281 transitions. [2023-11-21 22:29:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:29:04,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2023-11-21 22:29:04,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:04,973 INFO L225 Difference]: With dead ends: 248 [2023-11-21 22:29:04,973 INFO L226 Difference]: Without dead ends: 204 [2023-11-21 22:29:04,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:29:04,977 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 91 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:04,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 138 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:29:04,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-21 22:29:04,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-11-21 22:29:04,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 177 states have (on average 1.0508474576271187) internal successors, (186), 183 states have internal predecessors, (186), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-21 22:29:04,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 222 transitions. [2023-11-21 22:29:04,999 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 222 transitions. Word has length 69 [2023-11-21 22:29:04,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:04,999 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 222 transitions. [2023-11-21 22:29:04,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-21 22:29:04,999 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 222 transitions. [2023-11-21 22:29:05,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-21 22:29:05,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:05,001 INFO L195 NwaCegarLoop]: trace histogram [9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2023-11-21 22:29:05,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:05,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-21 22:29:05,222 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:05,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:05,223 INFO L85 PathProgramCache]: Analyzing trace with hash 785590753, now seen corresponding path program 1 times [2023-11-21 22:29:05,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:05,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144857756] [2023-11-21 22:29:05,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:05,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:05,245 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:05,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145979246] [2023-11-21 22:29:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:05,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:05,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:05,247 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:05,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-21 22:29:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:05,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:29:05,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:05,768 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-21 22:29:05,769 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:29:06,110 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-21 22:29:06,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:06,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144857756] [2023-11-21 22:29:06,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:06,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145979246] [2023-11-21 22:29:06,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145979246] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:29:06,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:29:06,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-21 22:29:06,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414912706] [2023-11-21 22:29:06,112 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:29:06,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 22:29:06,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:06,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:29:06,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:29:06,117 INFO L87 Difference]: Start difference. First operand 204 states and 222 transitions. Second operand has 14 states, 13 states have (on average 15.461538461538462) internal successors, (201), 14 states have internal predecessors, (201), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-21 22:29:06,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:06,586 INFO L93 Difference]: Finished difference Result 343 states and 373 transitions. [2023-11-21 22:29:06,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:29:06,586 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.461538461538462) internal successors, (201), 14 states have internal predecessors, (201), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 127 [2023-11-21 22:29:06,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:06,589 INFO L225 Difference]: With dead ends: 343 [2023-11-21 22:29:06,589 INFO L226 Difference]: Without dead ends: 342 [2023-11-21 22:29:06,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=240, Unknown=0, NotChecked=0, Total=420 [2023-11-21 22:29:06,591 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 203 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:06,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 301 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:29:06,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2023-11-21 22:29:06,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 294. [2023-11-21 22:29:06,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 260 states have (on average 1.0653846153846154) internal successors, (277), 266 states have internal predecessors, (277), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-21 22:29:06,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 327 transitions. [2023-11-21 22:29:06,624 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 327 transitions. Word has length 127 [2023-11-21 22:29:06,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:06,625 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 327 transitions. [2023-11-21 22:29:06,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.461538461538462) internal successors, (201), 14 states have internal predecessors, (201), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-21 22:29:06,626 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 327 transitions. [2023-11-21 22:29:06,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-21 22:29:06,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:06,628 INFO L195 NwaCegarLoop]: trace histogram [11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-11-21 22:29:06,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:06,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:06,849 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:06,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:06,849 INFO L85 PathProgramCache]: Analyzing trace with hash 384268398, now seen corresponding path program 2 times [2023-11-21 22:29:06,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:06,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356282283] [2023-11-21 22:29:06,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:06,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:06,886 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:06,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1578288640] [2023-11-21 22:29:06,886 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:29:06,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:06,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:06,888 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:06,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-21 22:29:06,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:29:06,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:29:06,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-21 22:29:06,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:07,438 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-21 22:29:07,439 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:29:07,855 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-21 22:29:07,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:07,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356282283] [2023-11-21 22:29:07,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:07,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578288640] [2023-11-21 22:29:07,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578288640] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:29:07,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:29:07,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-21 22:29:07,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124572738] [2023-11-21 22:29:07,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:29:07,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-21 22:29:07,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:07,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-21 22:29:07,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2023-11-21 22:29:07,859 INFO L87 Difference]: Start difference. First operand 294 states and 327 transitions. Second operand has 16 states, 15 states have (on average 15.8) internal successors, (237), 16 states have internal predecessors, (237), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-21 22:29:08,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:08,397 INFO L93 Difference]: Finished difference Result 378 states and 415 transitions. [2023-11-21 22:29:08,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 22:29:08,398 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 15.8) internal successors, (237), 16 states have internal predecessors, (237), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 151 [2023-11-21 22:29:08,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:08,401 INFO L225 Difference]: With dead ends: 378 [2023-11-21 22:29:08,401 INFO L226 Difference]: Without dead ends: 354 [2023-11-21 22:29:08,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=353, Unknown=0, NotChecked=0, Total=600 [2023-11-21 22:29:08,403 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 308 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:08,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 379 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:29:08,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-21 22:29:08,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 314. [2023-11-21 22:29:08,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 278 states have (on average 1.0611510791366907) internal successors, (295), 284 states have internal predecessors, (295), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-21 22:29:08,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 349 transitions. [2023-11-21 22:29:08,439 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 349 transitions. Word has length 151 [2023-11-21 22:29:08,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:08,440 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 349 transitions. [2023-11-21 22:29:08,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 15.8) internal successors, (237), 16 states have internal predecessors, (237), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-21 22:29:08,440 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 349 transitions. [2023-11-21 22:29:08,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-11-21 22:29:08,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:08,443 INFO L195 NwaCegarLoop]: trace histogram [13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-21 22:29:08,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:08,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:08,664 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:08,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:08,665 INFO L85 PathProgramCache]: Analyzing trace with hash -798792221, now seen corresponding path program 2 times [2023-11-21 22:29:08,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:08,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012269130] [2023-11-21 22:29:08,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:08,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:08,680 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:08,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960793366] [2023-11-21 22:29:08,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:29:08,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:08,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:08,682 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:08,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-21 22:29:08,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:29:08,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:29:08,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 22:29:08,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:09,016 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-21 22:29:09,016 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:29:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-21 22:29:09,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:09,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012269130] [2023-11-21 22:29:09,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:09,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960793366] [2023-11-21 22:29:09,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960793366] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:29:09,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:29:09,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-21 22:29:09,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289908020] [2023-11-21 22:29:09,513 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:29:09,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 22:29:09,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:09,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:29:09,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:29:09,516 INFO L87 Difference]: Start difference. First operand 314 states and 349 transitions. Second operand has 12 states, 11 states have (on average 26.818181818181817) internal successors, (295), 12 states have internal predecessors, (295), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-21 22:29:10,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:10,339 INFO L93 Difference]: Finished difference Result 507 states and 560 transitions. [2023-11-21 22:29:10,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:29:10,340 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 26.818181818181817) internal successors, (295), 12 states have internal predecessors, (295), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 186 [2023-11-21 22:29:10,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:10,343 INFO L225 Difference]: With dead ends: 507 [2023-11-21 22:29:10,344 INFO L226 Difference]: Without dead ends: 505 [2023-11-21 22:29:10,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-21 22:29:10,345 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 433 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:10,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 853 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 22:29:10,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-11-21 22:29:10,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 428. [2023-11-21 22:29:10,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 383 states have (on average 1.0600522193211488) internal successors, (406), 389 states have internal predecessors, (406), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-21 22:29:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 478 transitions. [2023-11-21 22:29:10,381 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 478 transitions. Word has length 186 [2023-11-21 22:29:10,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:10,381 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 478 transitions. [2023-11-21 22:29:10,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 26.818181818181817) internal successors, (295), 12 states have internal predecessors, (295), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-21 22:29:10,382 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 478 transitions. [2023-11-21 22:29:10,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-21 22:29:10,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:10,385 INFO L195 NwaCegarLoop]: trace histogram [14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-21 22:29:10,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:10,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:10,604 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:10,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:10,605 INFO L85 PathProgramCache]: Analyzing trace with hash -595196830, now seen corresponding path program 2 times [2023-11-21 22:29:10,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:10,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929277992] [2023-11-21 22:29:10,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:10,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:10,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:10,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574643478] [2023-11-21 22:29:10,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:29:10,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:10,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:10,632 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:10,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-21 22:29:10,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:29:10,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:29:10,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 22:29:10,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:11,252 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-21 22:29:11,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:29:11,747 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-21 22:29:11,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:11,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929277992] [2023-11-21 22:29:11,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:11,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574643478] [2023-11-21 22:29:11,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574643478] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:29:11,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:29:11,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-21 22:29:11,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381134679] [2023-11-21 22:29:11,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:29:11,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 22:29:11,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:11,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:29:11,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:29:11,751 INFO L87 Difference]: Start difference. First operand 428 states and 478 transitions. Second operand has 12 states, 11 states have (on average 27.181818181818183) internal successors, (299), 12 states have internal predecessors, (299), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-21 22:29:12,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:12,496 INFO L93 Difference]: Finished difference Result 503 states and 558 transitions. [2023-11-21 22:29:12,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:29:12,496 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 27.181818181818183) internal successors, (299), 12 states have internal predecessors, (299), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 191 [2023-11-21 22:29:12,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:12,499 INFO L225 Difference]: With dead ends: 503 [2023-11-21 22:29:12,500 INFO L226 Difference]: Without dead ends: 459 [2023-11-21 22:29:12,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2023-11-21 22:29:12,501 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 362 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:12,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 860 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 22:29:12,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2023-11-21 22:29:12,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 420. [2023-11-21 22:29:12,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 375 states have (on average 1.04) internal successors, (390), 381 states have internal predecessors, (390), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-21 22:29:12,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 462 transitions. [2023-11-21 22:29:12,537 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 462 transitions. Word has length 191 [2023-11-21 22:29:12,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:12,537 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 462 transitions. [2023-11-21 22:29:12,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 27.181818181818183) internal successors, (299), 12 states have internal predecessors, (299), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-21 22:29:12,538 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 462 transitions. [2023-11-21 22:29:12,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2023-11-21 22:29:12,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:12,543 INFO L195 NwaCegarLoop]: trace histogram [21, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1] [2023-11-21 22:29:12,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:12,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:12,749 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:12,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:12,749 INFO L85 PathProgramCache]: Analyzing trace with hash -804966471, now seen corresponding path program 2 times [2023-11-21 22:29:12,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:12,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135512508] [2023-11-21 22:29:12,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:12,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:12,774 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:12,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511317552] [2023-11-21 22:29:12,775 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:29:12,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:12,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:12,776 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:12,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-21 22:29:12,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:29:12,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:29:12,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:29:12,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-21 22:29:13,280 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:29:13,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-21 22:29:13,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:13,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135512508] [2023-11-21 22:29:13,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:13,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511317552] [2023-11-21 22:29:13,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511317552] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:29:13,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:29:13,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-21 22:29:13,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636922838] [2023-11-21 22:29:13,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:29:13,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:29:13,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:13,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:29:13,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:29:13,707 INFO L87 Difference]: Start difference. First operand 420 states and 462 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-21 22:29:13,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:13,874 INFO L93 Difference]: Finished difference Result 420 states and 462 transitions. [2023-11-21 22:29:13,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:29:13,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 295 [2023-11-21 22:29:13,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:13,880 INFO L225 Difference]: With dead ends: 420 [2023-11-21 22:29:13,880 INFO L226 Difference]: Without dead ends: 419 [2023-11-21 22:29:13,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 580 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:29:13,881 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 203 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:13,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 111 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:29:13,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-21 22:29:13,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2023-11-21 22:29:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 375 states have (on average 1.0293333333333334) internal successors, (386), 380 states have internal predecessors, (386), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-21 22:29:13,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 458 transitions. [2023-11-21 22:29:13,937 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 458 transitions. Word has length 295 [2023-11-21 22:29:13,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:13,938 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 458 transitions. [2023-11-21 22:29:13,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-21 22:29:13,938 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 458 transitions. [2023-11-21 22:29:13,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2023-11-21 22:29:13,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:13,944 INFO L195 NwaCegarLoop]: trace histogram [23, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1] [2023-11-21 22:29:14,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:14,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-21 22:29:14,163 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:14,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:14,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1012627014, now seen corresponding path program 3 times [2023-11-21 22:29:14,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:14,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75670933] [2023-11-21 22:29:14,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:14,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:14,195 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:14,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [22440775] [2023-11-21 22:29:14,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 22:29:14,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:14,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:14,197 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:14,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-21 22:29:14,266 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-21 22:29:14,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:29:14,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 22:29:14,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:14,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 42 proven. 176 refuted. 0 times theorem prover too weak. 1184 trivial. 0 not checked. [2023-11-21 22:29:14,791 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:29:15,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:15,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75670933] [2023-11-21 22:29:15,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:15,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22440775] [2023-11-21 22:29:15,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22440775] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:29:15,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:29:15,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-21 22:29:15,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124379543] [2023-11-21 22:29:15,469 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:29:15,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:29:15,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:15,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:29:15,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:29:15,471 INFO L87 Difference]: Start difference. First operand 419 states and 458 transitions. Second operand has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-21 22:29:15,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:15,915 INFO L93 Difference]: Finished difference Result 419 states and 458 transitions. [2023-11-21 22:29:15,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:29:15,919 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 319 [2023-11-21 22:29:15,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:15,922 INFO L225 Difference]: With dead ends: 419 [2023-11-21 22:29:15,922 INFO L226 Difference]: Without dead ends: 401 [2023-11-21 22:29:15,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-11-21 22:29:15,923 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 199 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:15,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 79 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:29:15,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-21 22:29:15,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2023-11-21 22:29:15,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 361 states have (on average 1.0110803324099722) internal successors, (365), 364 states have internal predecessors, (365), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-21 22:29:15,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 433 transitions. [2023-11-21 22:29:15,983 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 433 transitions. Word has length 319 [2023-11-21 22:29:15,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:15,987 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 433 transitions. [2023-11-21 22:29:15,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-21 22:29:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 433 transitions. [2023-11-21 22:29:15,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2023-11-21 22:29:15,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:15,997 INFO L195 NwaCegarLoop]: trace histogram [31, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2023-11-21 22:29:16,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:16,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-21 22:29:16,218 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 49 more)] === [2023-11-21 22:29:16,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:16,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1158969441, now seen corresponding path program 3 times [2023-11-21 22:29:16,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:29:16,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496169719] [2023-11-21 22:29:16,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:16,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:29:16,269 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:29:16,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196180173] [2023-11-21 22:29:16,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 22:29:16,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:29:16,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:16,271 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:29:16,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-21 22:29:21,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-21 22:29:21,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:29:21,101 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 22:29:21,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2700 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 2348 trivial. 0 not checked. [2023-11-21 22:29:21,447 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:29:21,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:29:21,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496169719] [2023-11-21 22:29:21,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:29:21,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196180173] [2023-11-21 22:29:21,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196180173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:21,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:21,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:29:21,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406395809] [2023-11-21 22:29:21,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:21,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:29:21,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:29:21,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:29:21,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:29:21,453 INFO L87 Difference]: Start difference. First operand 401 states and 433 transitions. Second operand has 7 states, 5 states have (on average 13.2) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-21 22:29:22,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:22,348 INFO L93 Difference]: Finished difference Result 401 states and 433 transitions. [2023-11-21 22:29:22,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:29:22,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.2) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 438 [2023-11-21 22:29:22,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:22,350 INFO L225 Difference]: With dead ends: 401 [2023-11-21 22:29:22,350 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:29:22,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:29:22,351 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 144 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:22,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 76 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-21 22:29:22,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:29:22,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:29:22,352 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) [2023-11-21 22:29:22,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:29:22,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 438 [2023-11-21 22:29:22,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:22,353 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:29:22,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.2) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-21 22:29:22,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:29:22,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:29:22,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 52 remaining) [2023-11-21 22:29:22,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 52 remaining) [2023-11-21 22:29:22,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 52 remaining) [2023-11-21 22:29:22,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 52 remaining) [2023-11-21 22:29:22,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 52 remaining) [2023-11-21 22:29:22,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 52 remaining) [2023-11-21 22:29:22,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 52 remaining) [2023-11-21 22:29:22,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 52 remaining) [2023-11-21 22:29:22,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 52 remaining) [2023-11-21 22:29:22,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 52 remaining) [2023-11-21 22:29:22,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 52 remaining) [2023-11-21 22:29:22,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 52 remaining) [2023-11-21 22:29:22,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 52 remaining) [2023-11-21 22:29:22,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 52 remaining) [2023-11-21 22:29:22,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 52 remaining) [2023-11-21 22:29:22,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 52 remaining) [2023-11-21 22:29:22,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 52 remaining) [2023-11-21 22:29:22,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 52 remaining) [2023-11-21 22:29:22,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 52 remaining) [2023-11-21 22:29:22,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 52 remaining) [2023-11-21 22:29:22,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 52 remaining) [2023-11-21 22:29:22,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 52 remaining) [2023-11-21 22:29:22,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 52 remaining) [2023-11-21 22:29:22,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 52 remaining) [2023-11-21 22:29:22,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 52 remaining) [2023-11-21 22:29:22,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 52 remaining) [2023-11-21 22:29:22,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 52 remaining) [2023-11-21 22:29:22,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 52 remaining) [2023-11-21 22:29:22,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 52 remaining) [2023-11-21 22:29:22,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 52 remaining) [2023-11-21 22:29:22,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 52 remaining) [2023-11-21 22:29:22,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 52 remaining) [2023-11-21 22:29:22,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 52 remaining) [2023-11-21 22:29:22,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 52 remaining) [2023-11-21 22:29:22,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 52 remaining) [2023-11-21 22:29:22,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 52 remaining) [2023-11-21 22:29:22,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 52 remaining) [2023-11-21 22:29:22,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 52 remaining) [2023-11-21 22:29:22,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 52 remaining) [2023-11-21 22:29:22,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 52 remaining) [2023-11-21 22:29:22,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 52 remaining) [2023-11-21 22:29:22,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 52 remaining) [2023-11-21 22:29:22,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 52 remaining) [2023-11-21 22:29:22,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 52 remaining) [2023-11-21 22:29:22,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 52 remaining) [2023-11-21 22:29:22,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 52 remaining) [2023-11-21 22:29:22,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 52 remaining) [2023-11-21 22:29:22,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 52 remaining) [2023-11-21 22:29:22,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 52 remaining) [2023-11-21 22:29:22,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 52 remaining) [2023-11-21 22:29:22,368 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 52 remaining) [2023-11-21 22:29:22,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 52 remaining) [2023-11-21 22:29:22,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:22,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-21 22:29:22,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 22:29:28,533 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-21 22:29:28,533 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,533 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-21 22:29:28,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-21 22:29:28,534 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-21 22:29:28,534 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-21 22:29:28,534 INFO L899 garLoopResultBuilder]: For program point L44-2(line 44) no Hoare annotation was computed. [2023-11-21 22:29:28,535 INFO L895 garLoopResultBuilder]: At program point L44-3(line 44) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~s~0#1|)) (.cse1 (<= 0 (+ ~counter~0 2147483648))) (.cse3 (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|)) (.cse2 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|)) (.cse4 (<= 3 |ULTIMATE.start_main_~t~0#1|)) (.cse5 (<= 1 |ULTIMATE.start_main_~a~0#1|)) (.cse6 (<= |ULTIMATE.start_main_~a~0#1| 4611686018427387903))) (or (and (= |ULTIMATE.start_main_~t~0#1| 1) (= |ULTIMATE.start_main_~a~0#1| 0) (= |ULTIMATE.start_main_~s~0#1| 1)) (and .cse0 .cse1 (<= .cse2 9223372036854775807) .cse3 .cse4 .cse5 .cse6 (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806) (<= |ULTIMATE.start_main_~s~0#1| 2305843009213693951)) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (= (mod (+ .cse2 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) .cse3 (<= (div (+ .cse2 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 2305843009213693951) .cse4 .cse5 .cse6 (<= |ULTIMATE.start_main_~s~0#1| (+ 2147483647 |ULTIMATE.start_main_~t~0#1|))))) [2023-11-21 22:29:28,535 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,535 INFO L899 garLoopResultBuilder]: For program point L44-4(line 44) no Hoare annotation was computed. [2023-11-21 22:29:28,535 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,535 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2023-11-21 22:29:28,536 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,536 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,536 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-21 22:29:28,536 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,536 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,536 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,537 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,537 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,537 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,537 INFO L899 garLoopResultBuilder]: For program point L45-4(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,537 INFO L895 garLoopResultBuilder]: At program point L45-5(line 45) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~t~0#1| 1) (= |ULTIMATE.start_main_~s~0#1| 1)) (and (<= 0 (+ ~counter~0 2147483648)) (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806) (<= |ULTIMATE.start_main_~s~0#1| 2305843009213693951))) [2023-11-21 22:29:28,537 INFO L899 garLoopResultBuilder]: For program point L45-6(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,538 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2023-11-21 22:29:28,538 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,538 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,538 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-21 22:29:28,538 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,538 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,539 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,539 INFO L899 garLoopResultBuilder]: For program point L46-2(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,539 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,539 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,539 INFO L899 garLoopResultBuilder]: For program point L46-4(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,539 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 22:29:28,539 INFO L899 garLoopResultBuilder]: For program point L46-5(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,540 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,540 INFO L899 garLoopResultBuilder]: For program point L46-6(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,540 INFO L899 garLoopResultBuilder]: For program point L46-7(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,540 INFO L899 garLoopResultBuilder]: For program point L46-8(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,540 INFO L899 garLoopResultBuilder]: For program point L46-9(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,540 INFO L899 garLoopResultBuilder]: For program point L46-10(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,540 INFO L902 garLoopResultBuilder]: At program point L46-11(line 46) the Hoare annotation is: true [2023-11-21 22:29:28,541 INFO L899 garLoopResultBuilder]: For program point L46-12(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,541 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,541 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2023-11-21 22:29:28,541 INFO L899 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2023-11-21 22:29:28,541 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 42) no Hoare annotation was computed. [2023-11-21 22:29:28,542 INFO L895 garLoopResultBuilder]: At program point L30-5(lines 30 42) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 2147483647))) (or (let ((.cse1 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|))) (and (<= 0 (+ ~counter~0 2147483648)) .cse0 (= (mod (+ .cse1 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) (<= ~counter~0 50) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= (div (+ .cse1 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 2305843009213693951) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~s~0#1| (+ 2147483647 |ULTIMATE.start_main_~t~0#1|)))) (and .cse0 (= |ULTIMATE.start_main_~t~0#1| 1) (= ~counter~0 0) (= |ULTIMATE.start_main_~a~0#1| 0) (= |ULTIMATE.start_main_~s~0#1| 1)))) [2023-11-21 22:29:28,542 INFO L899 garLoopResultBuilder]: For program point L30-6(lines 30 42) no Hoare annotation was computed. [2023-11-21 22:29:28,542 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,542 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-21 22:29:28,542 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,542 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,543 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-11-21 22:29:28,543 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-11-21 22:29:28,543 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,543 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-11-21 22:29:28,543 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2023-11-21 22:29:28,543 INFO L899 garLoopResultBuilder]: For program point L31-2(line 31) no Hoare annotation was computed. [2023-11-21 22:29:28,543 INFO L899 garLoopResultBuilder]: For program point L31-3(line 31) no Hoare annotation was computed. [2023-11-21 22:29:28,544 INFO L895 garLoopResultBuilder]: At program point L31-4(line 31) the Hoare annotation is: (let ((.cse0 (<= 0 (+ ~counter~0 2147483648))) (.cse1 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse2 (<= ~counter~0 50))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~t~0#1| 1) (= |ULTIMATE.start_main_~a~0#1| 0) (= |ULTIMATE.start_main_~s~0#1| 1)) (let ((.cse3 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|))) (and .cse0 .cse1 (= (mod (+ .cse3 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) .cse2 (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= (div (+ .cse3 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 2305843009213693951) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~s~0#1| (+ 2147483647 |ULTIMATE.start_main_~t~0#1|)))))) [2023-11-21 22:29:28,544 INFO L899 garLoopResultBuilder]: For program point L31-5(line 31) no Hoare annotation was computed. [2023-11-21 22:29:28,544 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,544 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-21 22:29:28,544 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,545 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,545 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-21 22:29:28,545 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-21 22:29:28,545 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,545 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,545 INFO L899 garLoopResultBuilder]: For program point L32-2(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,546 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-21 22:29:28,546 INFO L899 garLoopResultBuilder]: For program point L32-3(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,546 INFO L899 garLoopResultBuilder]: For program point L32-4(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,546 INFO L895 garLoopResultBuilder]: At program point L32-5(line 32) the Hoare annotation is: (let ((.cse0 (<= 0 (+ ~counter~0 2147483648))) (.cse1 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse3 (<= ~counter~0 50))) (or (let ((.cse2 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|))) (and .cse0 .cse1 (= (mod (+ .cse2 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) .cse3 (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= (div (+ .cse2 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 2305843009213693951) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~s~0#1| (+ 2147483647 |ULTIMATE.start_main_~t~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| (+ 2147483648 (* 2 |ULTIMATE.start_main_~a~0#1|))) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 2305843009213693951))) (and .cse0 .cse1 .cse3 (= |ULTIMATE.start_main_~t~0#1| 1) (= |ULTIMATE.start_main_~a~0#1| 0) (= |ULTIMATE.start_main_~s~0#1| 1)))) [2023-11-21 22:29:28,546 INFO L899 garLoopResultBuilder]: For program point L32-6(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,546 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-21 22:29:28,547 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,547 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,547 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-21 22:29:28,547 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-21 22:29:28,547 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,547 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-21 22:29:28,548 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,548 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,548 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:29:28,548 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,548 INFO L899 garLoopResultBuilder]: For program point L33-2(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,548 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,549 INFO L899 garLoopResultBuilder]: For program point L33-3(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,549 INFO L899 garLoopResultBuilder]: For program point L33-4(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,549 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-21 22:29:28,549 INFO L899 garLoopResultBuilder]: For program point L33-5(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,549 INFO L899 garLoopResultBuilder]: For program point L33-6(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,549 INFO L899 garLoopResultBuilder]: For program point L33-7(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,549 INFO L899 garLoopResultBuilder]: For program point L33-8(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,550 INFO L899 garLoopResultBuilder]: For program point L33-9(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,550 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-21 22:29:28,550 INFO L899 garLoopResultBuilder]: For program point L33-10(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,550 INFO L895 garLoopResultBuilder]: At program point L33-11(line 33) the Hoare annotation is: (let ((.cse0 (<= 0 (+ ~counter~0 2147483648))) (.cse1 (<= |ULTIMATE.start_main_~n~0#1| 2147483647)) (.cse2 (<= ~counter~0 50))) (or (and .cse0 .cse1 (= (mod (+ (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) .cse2 (exists ((v_subst_2 Int)) (let ((.cse3 (* 2 v_subst_2))) (and (= (+ .cse3 (* v_subst_2 v_subst_2) 1) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~s~0#1| (+ .cse3 2147483648))))) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= |ULTIMATE.start_main_~s~0#1| (+ 2147483647 |ULTIMATE.start_main_~t~0#1|)) (<= |ULTIMATE.start_main_~s~0#1| (+ 2147483648 (* 2 |ULTIMATE.start_main_~a~0#1|))) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 2305843009213693951)) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~t~0#1| 1) (= |ULTIMATE.start_main_~a~0#1| 0) (= |ULTIMATE.start_main_~s~0#1| 1)))) [2023-11-21 22:29:28,551 INFO L899 garLoopResultBuilder]: For program point L33-12(lines 30 42) no Hoare annotation was computed. [2023-11-21 22:29:28,551 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,551 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,551 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,551 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,551 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-21 22:29:28,552 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,552 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-21 22:29:28,552 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-21 22:29:28,552 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-21 22:29:28,552 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-21 22:29:28,552 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:29:28,553 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-11-21 22:29:28,553 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-11-21 22:29:28,556 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:29:28,559 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:29:28,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:29:28 BoogieIcfgContainer [2023-11-21 22:29:28,572 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:29:28,573 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:29:28,573 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:29:28,573 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:29:28,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:54" (3/4) ... [2023-11-21 22:29:28,576 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:29:28,579 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-21 22:29:28,588 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-21 22:29:28,589 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-21 22:29:28,589 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:29:28,590 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:29:28,707 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:29:28,708 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:29:28,708 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:29:28,710 INFO L158 Benchmark]: Toolchain (without parser) took 35659.95ms. Allocated memory was 119.5MB in the beginning and 211.8MB in the end (delta: 92.3MB). Free memory was 79.4MB in the beginning and 95.7MB in the end (delta: -16.2MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2023-11-21 22:29:28,710 INFO L158 Benchmark]: CDTParser took 1.13ms. Allocated memory is still 119.5MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:29:28,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.55ms. Allocated memory is still 119.5MB. Free memory was 79.1MB in the beginning and 68.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:29:28,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.97ms. Allocated memory is still 119.5MB. Free memory was 68.2MB in the beginning and 66.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:29:28,712 INFO L158 Benchmark]: Boogie Preprocessor took 42.59ms. Allocated memory is still 119.5MB. Free memory was 66.5MB in the beginning and 64.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:29:28,712 INFO L158 Benchmark]: RCFGBuilder took 786.38ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 64.8MB in the beginning and 119.3MB in the end (delta: -54.6MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2023-11-21 22:29:28,715 INFO L158 Benchmark]: TraceAbstraction took 34355.42ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 118.5MB in the beginning and 102.0MB in the end (delta: 16.6MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2023-11-21 22:29:28,716 INFO L158 Benchmark]: Witness Printer took 135.64ms. Allocated memory is still 211.8MB. Free memory was 102.0MB in the beginning and 95.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:29:28,725 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13ms. Allocated memory is still 119.5MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.55ms. Allocated memory is still 119.5MB. Free memory was 79.1MB in the beginning and 68.2MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.97ms. Allocated memory is still 119.5MB. Free memory was 68.2MB in the beginning and 66.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.59ms. Allocated memory is still 119.5MB. Free memory was 66.5MB in the beginning and 64.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 786.38ms. Allocated memory was 119.5MB in the beginning and 146.8MB in the end (delta: 27.3MB). Free memory was 64.8MB in the beginning and 119.3MB in the end (delta: -54.6MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 34355.42ms. Allocated memory was 146.8MB in the beginning and 211.8MB in the end (delta: 65.0MB). Free memory was 118.5MB in the beginning and 102.0MB in the end (delta: 16.6MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. * Witness Printer took 135.64ms. Allocated memory is still 211.8MB. Free memory was 102.0MB in the beginning and 95.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 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: 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: 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: 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: 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: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 118 locations, 52 error locations. Started 1 CEGAR loops. OverallTime: 34.3s, OverallIterations: 25, TraceHistogramMax: 31, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3600 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3514 mSDsluCounter, 6254 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4139 mSDsCounter, 443 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3591 IncrementalHoareTripleChecker+Invalid, 4034 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 443 mSolverCounterUnsat, 2115 mSDtfsCounter, 3591 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3615 GetRequests, 3456 SyntacticMatches, 0 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=428occurred in iteration=21, InterpolantAutomatonStates: 154, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 25 MinimizatonAttempts, 701 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 63 PreInvPairs, 121 NumberOfFragments, 478 HoareAnnotationTreeSize, 63 FomulaSimplifications, 21635 FormulaSimplificationTreeSizeReduction, 3.7s HoareSimplificationTime, 8 FomulaSimplificationsInter, 17311 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 5.8s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 2383 NumberOfCodeBlocks, 1738 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 3540 ConstructedInterpolants, 4 QuantifiedInterpolants, 14786 SizeOfPredicates, 17 NumberOfNonLiveVariables, 3344 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 34 InterpolantComputations, 15 PerfectInterpolantSequences, 7418/9500 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 52 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((((0 <= (counter + 2147483648)) && (n <= 2147483647)) && (((((t * t) + (2 * t)) + 1) % 4) == 0)) && (counter <= 50)) && ((t + 1) <= s)) && (((((t * t) + (-2 * t)) + 1) / 4) <= 2305843009213693951)) && (3 <= t)) && (1 <= a)) && (a <= 4611686018427387903)) && (s <= (2147483647 + t))) || (((((n <= 2147483647) && (t == 1)) && (counter == 0)) && (a == 0)) && (s == 1))) RESULT: Ultimate proved your program to be correct! [2023-11-21 22:29:28,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_153a5828-5b15-4af2-a821-8c1bb2e2315d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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