./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47fbdb3da16165eeeef0687b73275c90a2682f5a520ac2387154637187559fe6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:23:06,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:23:06,252 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:23:06,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:23:06,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:23:06,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:23:06,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:23:06,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:23:06,286 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:23:06,286 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:23:06,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:23:06,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:23:06,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:23:06,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:23:06,289 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:23:06,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:23:06,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:23:06,291 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:23:06,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:23:06,292 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:23:06,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:23:06,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:23:06,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:23:06,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:23:06,294 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:23:06,295 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:23:06,295 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:23:06,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:23:06,296 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:23:06,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:23:06,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:23:06,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:23:06,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:23:06,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:23:06,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:23:06,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:23:06,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:23:06,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:23:06,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:23:06,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:23:06,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:23:06,300 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:23:06,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:23:06,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:23:06,300 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_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47fbdb3da16165eeeef0687b73275c90a2682f5a520ac2387154637187559fe6 [2023-11-29 01:23:06,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:23:06,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:23:06,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:23:06,549 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:23:06,549 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:23:06,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound100.c [2023-11-29 01:23:09,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:23:09,453 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:23:09,453 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound100.c [2023-11-29 01:23:09,459 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/data/5e5c62a94/35f7f86deb12427f83d8865aa965f262/FLAGf55cfc272 [2023-11-29 01:23:09,469 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/data/5e5c62a94/35f7f86deb12427f83d8865aa965f262 [2023-11-29 01:23:09,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:23:09,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:23:09,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:23:09,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:23:09,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:23:09,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ddd7b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09, skipping insertion in model container [2023-11-29 01:23:09,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,497 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:23:09,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:23:09,644 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:23:09,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:23:09,672 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:23:09,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09 WrapperNode [2023-11-29 01:23:09,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:23:09,673 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:23:09,673 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:23:09,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:23:09,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,710 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 107 [2023-11-29 01:23:09,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:23:09,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:23:09,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:23:09,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:23:09,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,722 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,734 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 01:23:09,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:23:09,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:23:09,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:23:09,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:23:09,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (1/1) ... [2023-11-29 01:23:09,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:23:09,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:09,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:23:09,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:23:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:23:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:23:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:23:09,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:23:09,805 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:23:09,805 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:23:09,864 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:23:09,866 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:23:10,243 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:23:10,267 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:23:10,268 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:23:10,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:23:10 BoogieIcfgContainer [2023-11-29 01:23:10,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:23:10,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:23:10,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:23:10,276 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:23:10,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:23:09" (1/3) ... [2023-11-29 01:23:10,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481c28a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:23:10, skipping insertion in model container [2023-11-29 01:23:10,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:23:09" (2/3) ... [2023-11-29 01:23:10,278 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481c28a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:23:10, skipping insertion in model container [2023-11-29 01:23:10,278 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:23:10" (3/3) ... [2023-11-29 01:23:10,279 INFO L112 eAbstractionObserver]: Analyzing ICFG ps4-ll_unwindbound100.c [2023-11-29 01:23:10,298 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:23:10,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2023-11-29 01:23:10,352 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:23:10,359 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;@12ebf99e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:23:10,360 INFO L358 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2023-11-29 01:23:10,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 70 states have (on average 1.9428571428571428) internal successors, (136), 132 states have internal predecessors, (136), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:23:10,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 01:23:10,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:10,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 01:23:10,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:10,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:10,378 INFO L85 PathProgramCache]: Analyzing trace with hash 195308, now seen corresponding path program 1 times [2023-11-29 01:23:10,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:10,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050430608] [2023-11-29 01:23:10,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:10,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:10,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:10,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:10,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050430608] [2023-11-29 01:23:10,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050430608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:10,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:10,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:23:10,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567953244] [2023-11-29 01:23:10,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:10,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:23:10,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:10,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:23:10,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:23:10,594 INFO L87 Difference]: Start difference. First operand has 137 states, 70 states have (on average 1.9428571428571428) internal successors, (136), 132 states have internal predecessors, (136), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:23:10,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:10,673 INFO L93 Difference]: Finished difference Result 267 states and 294 transitions. [2023-11-29 01:23:10,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:23:10,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 01:23:10,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:10,682 INFO L225 Difference]: With dead ends: 267 [2023-11-29 01:23:10,682 INFO L226 Difference]: Without dead ends: 128 [2023-11-29 01:23:10,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:23:10,689 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 4 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 370 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 [2023-11-29 01:23:10,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 370 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:23:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-29 01:23:10,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-11-29 01:23:10,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 73 states have (on average 1.726027397260274) internal successors, (126), 124 states have internal predecessors, (126), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:10,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 130 transitions. [2023-11-29 01:23:10,738 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 130 transitions. Word has length 3 [2023-11-29 01:23:10,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:10,739 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 130 transitions. [2023-11-29 01:23:10,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:23:10,739 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 130 transitions. [2023-11-29 01:23:10,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 01:23:10,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:10,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 01:23:10,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:23:10,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:10,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:10,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1523494207, now seen corresponding path program 1 times [2023-11-29 01:23:10,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:10,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906766499] [2023-11-29 01:23:10,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:10,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:10,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:10,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:10,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906766499] [2023-11-29 01:23:10,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906766499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:10,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:10,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:23:10,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220983019] [2023-11-29 01:23:10,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:10,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:23:10,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:10,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:23:10,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:23:10,810 INFO L87 Difference]: Start difference. First operand 128 states and 130 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) [2023-11-29 01:23:10,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:10,943 INFO L93 Difference]: Finished difference Result 241 states and 245 transitions. [2023-11-29 01:23:10,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:23:10,943 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 [2023-11-29 01:23:10,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:10,948 INFO L225 Difference]: With dead ends: 241 [2023-11-29 01:23:10,948 INFO L226 Difference]: Without dead ends: 230 [2023-11-29 01:23:10,949 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 [2023-11-29 01:23:10,951 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 100 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:10,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 225 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:23:10,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-11-29 01:23:10,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 180. [2023-11-29 01:23:10,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 123 states have (on average 1.6829268292682926) internal successors, (207), 174 states have internal predecessors, (207), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:23:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 215 transitions. [2023-11-29 01:23:10,970 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 215 transitions. Word has length 6 [2023-11-29 01:23:10,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:10,970 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 215 transitions. [2023-11-29 01:23:10,970 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) [2023-11-29 01:23:10,971 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 215 transitions. [2023-11-29 01:23:10,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 01:23:10,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:10,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:10,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:23:10,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:10,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:10,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1496553621, now seen corresponding path program 1 times [2023-11-29 01:23:10,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:10,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943322905] [2023-11-29 01:23:10,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:10,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:10,985 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:10,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181806319] [2023-11-29 01:23:10,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:10,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:10,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:10,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:10,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:23:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:11,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:23:11,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:11,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:11,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:23:11,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:11,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943322905] [2023-11-29 01:23:11,073 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:11,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181806319] [2023-11-29 01:23:11,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181806319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:11,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:11,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:23:11,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027360818] [2023-11-29 01:23:11,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:11,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:23:11,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:11,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:23:11,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:23:11,076 INFO L87 Difference]: Start difference. First operand 180 states and 215 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:23:11,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:11,326 INFO L93 Difference]: Finished difference Result 219 states and 223 transitions. [2023-11-29 01:23:11,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:23:11,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2023-11-29 01:23:11,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:11,329 INFO L225 Difference]: With dead ends: 219 [2023-11-29 01:23:11,329 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 01:23:11,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:23:11,331 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 58 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:11,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 125 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:23:11,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 01:23:11,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 184. [2023-11-29 01:23:11,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 178 states have internal predecessors, (188), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:23:11,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 196 transitions. [2023-11-29 01:23:11,347 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 196 transitions. Word has length 9 [2023-11-29 01:23:11,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:11,348 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 196 transitions. [2023-11-29 01:23:11,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:23:11,348 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 196 transitions. [2023-11-29 01:23:11,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 01:23:11,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:11,349 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:11,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:23:11,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:11,554 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:11,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:11,554 INFO L85 PathProgramCache]: Analyzing trace with hash -792860857, now seen corresponding path program 1 times [2023-11-29 01:23:11,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:11,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508437852] [2023-11-29 01:23:11,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:11,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:11,564 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:11,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188226391] [2023-11-29 01:23:11,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:11,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:11,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:11,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:11,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:23:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:11,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:23:11,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:11,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:11,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:23:11,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:11,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508437852] [2023-11-29 01:23:11,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:11,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188226391] [2023-11-29 01:23:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188226391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:11,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:11,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:23:11,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850312654] [2023-11-29 01:23:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:11,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:23:11,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:11,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:23:11,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:23:11,651 INFO L87 Difference]: Start difference. First operand 184 states and 196 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:23:11,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:11,811 INFO L93 Difference]: Finished difference Result 203 states and 207 transitions. [2023-11-29 01:23:11,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:23:11,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2023-11-29 01:23:11,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:11,813 INFO L225 Difference]: With dead ends: 203 [2023-11-29 01:23:11,813 INFO L226 Difference]: Without dead ends: 169 [2023-11-29 01:23:11,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:23:11,815 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 116 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:11,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 182 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:23:11,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-29 01:23:11,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 156. [2023-11-29 01:23:11,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 100 states have (on average 1.55) internal successors, (155), 151 states have internal predecessors, (155), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:23:11,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 161 transitions. [2023-11-29 01:23:11,826 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 161 transitions. Word has length 14 [2023-11-29 01:23:11,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:11,827 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 161 transitions. [2023-11-29 01:23:11,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:23:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 161 transitions. [2023-11-29 01:23:11,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 01:23:11,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:11,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:11,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:23:12,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:12,033 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:12,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:12,034 INFO L85 PathProgramCache]: Analyzing trace with hash -807418136, now seen corresponding path program 1 times [2023-11-29 01:23:12,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:12,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632371216] [2023-11-29 01:23:12,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:12,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:12,046 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:12,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398584042] [2023-11-29 01:23:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:12,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:12,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:12,048 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:12,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:23:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:12,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:23:12,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:12,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:12,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:23:12,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:12,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632371216] [2023-11-29 01:23:12,150 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:12,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398584042] [2023-11-29 01:23:12,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398584042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:12,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:12,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:23:12,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876841928] [2023-11-29 01:23:12,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:12,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:23:12,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:12,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:23:12,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:23:12,152 INFO L87 Difference]: Start difference. First operand 156 states and 161 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:12,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:12,164 INFO L93 Difference]: Finished difference Result 156 states and 161 transitions. [2023-11-29 01:23:12,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:23:12,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2023-11-29 01:23:12,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:12,166 INFO L225 Difference]: With dead ends: 156 [2023-11-29 01:23:12,166 INFO L226 Difference]: Without dead ends: 155 [2023-11-29 01:23:12,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:23:12,168 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 89 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:12,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 124 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:23:12,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-29 01:23:12,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-29 01:23:12,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 100 states have (on average 1.53) internal successors, (153), 150 states have internal predecessors, (153), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:23:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 159 transitions. [2023-11-29 01:23:12,177 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 159 transitions. Word has length 34 [2023-11-29 01:23:12,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:12,178 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 159 transitions. [2023-11-29 01:23:12,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:12,179 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 159 transitions. [2023-11-29 01:23:12,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-29 01:23:12,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:12,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:12,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:23:12,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:12,385 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:12,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:12,386 INFO L85 PathProgramCache]: Analyzing trace with hash 739841660, now seen corresponding path program 1 times [2023-11-29 01:23:12,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:12,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144933603] [2023-11-29 01:23:12,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:12,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:12,396 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:12,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [537850136] [2023-11-29 01:23:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:12,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:12,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:12,398 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:12,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:23:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:12,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:23:12,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:12,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:12,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:23:12,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:12,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144933603] [2023-11-29 01:23:12,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:12,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537850136] [2023-11-29 01:23:12,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537850136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:12,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:12,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:23:12,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320576584] [2023-11-29 01:23:12,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:12,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:23:12,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:12,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:23:12,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:23:12,488 INFO L87 Difference]: Start difference. First operand 155 states and 159 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:12,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:12,501 INFO L93 Difference]: Finished difference Result 156 states and 159 transitions. [2023-11-29 01:23:12,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:23:12,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2023-11-29 01:23:12,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:12,503 INFO L225 Difference]: With dead ends: 156 [2023-11-29 01:23:12,503 INFO L226 Difference]: Without dead ends: 155 [2023-11-29 01:23:12,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:23:12,504 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:12,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:23:12,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-29 01:23:12,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-29 01:23:12,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 100 states have (on average 1.52) internal successors, (152), 150 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:23:12,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 158 transitions. [2023-11-29 01:23:12,512 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 158 transitions. Word has length 35 [2023-11-29 01:23:12,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:12,512 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 158 transitions. [2023-11-29 01:23:12,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:12,513 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 158 transitions. [2023-11-29 01:23:12,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 01:23:12,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:12,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:12,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:23:12,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 01:23:12,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:12,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:12,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1264489984, now seen corresponding path program 1 times [2023-11-29 01:23:12,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:12,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997744584] [2023-11-29 01:23:12,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:12,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:12,726 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:12,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598040024] [2023-11-29 01:23:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:12,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:12,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:12,728 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:12,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:23:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:12,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:23:12,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:12,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:12,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:23:12,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:12,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997744584] [2023-11-29 01:23:12,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:12,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598040024] [2023-11-29 01:23:12,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598040024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:12,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:12,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:23:12,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759665009] [2023-11-29 01:23:12,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:12,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:23:12,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:12,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:23:12,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:23:12,883 INFO L87 Difference]: Start difference. First operand 155 states and 158 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:13,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:13,160 INFO L93 Difference]: Finished difference Result 273 states and 279 transitions. [2023-11-29 01:23:13,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:23:13,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2023-11-29 01:23:13,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:13,162 INFO L225 Difference]: With dead ends: 273 [2023-11-29 01:23:13,162 INFO L226 Difference]: Without dead ends: 247 [2023-11-29 01:23:13,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:23:13,164 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 89 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:13,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 117 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:23:13,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-29 01:23:13,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 220. [2023-11-29 01:23:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.4723926380368098) internal successors, (240), 213 states have internal predecessors, (240), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 01:23:13,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 250 transitions. [2023-11-29 01:23:13,174 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 250 transitions. Word has length 39 [2023-11-29 01:23:13,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:13,175 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 250 transitions. [2023-11-29 01:23:13,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 250 transitions. [2023-11-29 01:23:13,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 01:23:13,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:13,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:13,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:23:13,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:13,377 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:13,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:13,377 INFO L85 PathProgramCache]: Analyzing trace with hash 737149168, now seen corresponding path program 1 times [2023-11-29 01:23:13,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:13,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735529349] [2023-11-29 01:23:13,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:13,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:13,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:13,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558455] [2023-11-29 01:23:13,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:13,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:13,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:13,389 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:13,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:23:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:13,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:23:13,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:13,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:23:13,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:13,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735529349] [2023-11-29 01:23:13,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:13,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558455] [2023-11-29 01:23:13,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:13,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:13,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:23:13,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240881464] [2023-11-29 01:23:13,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:13,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:23:13,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:13,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:23:13,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:23:13,500 INFO L87 Difference]: Start difference. First operand 220 states and 250 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:17,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:23:18,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:18,565 INFO L93 Difference]: Finished difference Result 222 states and 250 transitions. [2023-11-29 01:23:18,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:23:18,565 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2023-11-29 01:23:18,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:18,567 INFO L225 Difference]: With dead ends: 222 [2023-11-29 01:23:18,567 INFO L226 Difference]: Without dead ends: 221 [2023-11-29 01:23:18,567 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 [2023-11-29 01:23:18,568 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 34 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:18,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 201 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 163 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2023-11-29 01:23:18,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-29 01:23:18,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2023-11-29 01:23:18,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.4662576687116564) internal successors, (239), 213 states have internal predecessors, (239), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 01:23:18,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 249 transitions. [2023-11-29 01:23:18,575 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 249 transitions. Word has length 42 [2023-11-29 01:23:18,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:18,576 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 249 transitions. [2023-11-29 01:23:18,576 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:18,576 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 249 transitions. [2023-11-29 01:23:18,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 01:23:18,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:18,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:18,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:23:18,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:18,778 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:18,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:18,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1376787844, now seen corresponding path program 1 times [2023-11-29 01:23:18,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:18,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120930980] [2023-11-29 01:23:18,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:18,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:18,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:18,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795229911] [2023-11-29 01:23:18,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:18,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:18,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:18,790 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:18,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:23:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:18,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:23:18,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:18,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:18,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:23:18,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:18,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120930980] [2023-11-29 01:23:18,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:18,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795229911] [2023-11-29 01:23:18,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795229911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:18,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:18,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:23:18,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007655237] [2023-11-29 01:23:18,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:18,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:23:18,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:18,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:23:18,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:23:18,916 INFO L87 Difference]: Start difference. First operand 220 states and 249 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:18,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:18,996 INFO L93 Difference]: Finished difference Result 221 states and 249 transitions. [2023-11-29 01:23:18,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:23:18,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2023-11-29 01:23:18,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:18,998 INFO L225 Difference]: With dead ends: 221 [2023-11-29 01:23:18,998 INFO L226 Difference]: Without dead ends: 220 [2023-11-29 01:23:18,999 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 [2023-11-29 01:23:18,999 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 30 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:18,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 187 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:23:19,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-29 01:23:19,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2023-11-29 01:23:19,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.460122699386503) internal successors, (238), 213 states have internal predecessors, (238), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 01:23:19,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 248 transitions. [2023-11-29 01:23:19,007 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 248 transitions. Word has length 43 [2023-11-29 01:23:19,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:19,007 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 248 transitions. [2023-11-29 01:23:19,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:19,008 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 248 transitions. [2023-11-29 01:23:19,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-29 01:23:19,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:19,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:19,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:23:19,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:19,213 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:19,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:19,214 INFO L85 PathProgramCache]: Analyzing trace with hash 243192102, now seen corresponding path program 1 times [2023-11-29 01:23:19,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:19,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598569505] [2023-11-29 01:23:19,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:19,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:19,223 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:19,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [504331372] [2023-11-29 01:23:19,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:19,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:19,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:19,225 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:19,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:23:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:19,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:23:19,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:19,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:23:19,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:19,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598569505] [2023-11-29 01:23:19,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:19,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504331372] [2023-11-29 01:23:19,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504331372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:19,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:19,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:23:19,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551247517] [2023-11-29 01:23:19,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:19,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:23:19,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:19,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:23:19,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:23:19,363 INFO L87 Difference]: Start difference. First operand 220 states and 248 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:19,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:19,411 INFO L93 Difference]: Finished difference Result 220 states and 248 transitions. [2023-11-29 01:23:19,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:23:19,412 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2023-11-29 01:23:19,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:19,413 INFO L225 Difference]: With dead ends: 220 [2023-11-29 01:23:19,413 INFO L226 Difference]: Without dead ends: 219 [2023-11-29 01:23:19,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:23:19,415 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 89 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:19,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 351 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:23:19,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-29 01:23:19,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-29 01:23:19,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 163 states have (on average 1.4478527607361964) internal successors, (236), 212 states have internal predecessors, (236), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 01:23:19,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 246 transitions. [2023-11-29 01:23:19,424 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 246 transitions. Word has length 45 [2023-11-29 01:23:19,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:19,425 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 246 transitions. [2023-11-29 01:23:19,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:19,425 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 246 transitions. [2023-11-29 01:23:19,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 01:23:19,426 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:19,426 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:19,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 01:23:19,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:23:19,627 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:19,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:19,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1050979389, now seen corresponding path program 1 times [2023-11-29 01:23:19,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:19,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095586095] [2023-11-29 01:23:19,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:19,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:19,637 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:19,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834492771] [2023-11-29 01:23:19,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:19,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:19,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:19,639 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:19,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:23:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:19,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:23:19,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:19,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:19,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:19,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:19,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095586095] [2023-11-29 01:23:19,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:19,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834492771] [2023-11-29 01:23:19,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834492771] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:23:19,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:23:19,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 01:23:19,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608842029] [2023-11-29 01:23:19,880 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:19,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:23:19,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:19,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:23:19,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:23:19,882 INFO L87 Difference]: Start difference. First operand 219 states and 246 transitions. Second operand has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:20,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:20,016 INFO L93 Difference]: Finished difference Result 430 states and 437 transitions. [2023-11-29 01:23:20,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:23:20,017 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2023-11-29 01:23:20,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:20,019 INFO L225 Difference]: With dead ends: 430 [2023-11-29 01:23:20,019 INFO L226 Difference]: Without dead ends: 384 [2023-11-29 01:23:20,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:23:20,020 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 198 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:20,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 855 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:23:20,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-29 01:23:20,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 285. [2023-11-29 01:23:20,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 224 states have (on average 1.4866071428571428) internal successors, (333), 274 states have internal predecessors, (333), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 01:23:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 347 transitions. [2023-11-29 01:23:20,030 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 347 transitions. Word has length 46 [2023-11-29 01:23:20,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:20,030 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 347 transitions. [2023-11-29 01:23:20,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.777777777777779) internal successors, (88), 10 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 347 transitions. [2023-11-29 01:23:20,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 01:23:20,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:20,032 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:20,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 01:23:20,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 01:23:20,232 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:20,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:20,233 INFO L85 PathProgramCache]: Analyzing trace with hash -673876795, now seen corresponding path program 1 times [2023-11-29 01:23:20,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:20,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88655583] [2023-11-29 01:23:20,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:20,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:20,241 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:20,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611720644] [2023-11-29 01:23:20,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:20,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:20,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:20,242 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:20,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:23:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:20,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:23:20,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:20,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:20,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:20,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88655583] [2023-11-29 01:23:20,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:20,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611720644] [2023-11-29 01:23:20,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611720644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:23:20,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:23:20,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 01:23:20,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372353309] [2023-11-29 01:23:20,608 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:20,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:23:20,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:20,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:23:20,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:23:20,609 INFO L87 Difference]: Start difference. First operand 285 states and 347 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:21,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:21,079 INFO L93 Difference]: Finished difference Result 285 states and 347 transitions. [2023-11-29 01:23:21,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:23:21,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2023-11-29 01:23:21,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:21,082 INFO L225 Difference]: With dead ends: 285 [2023-11-29 01:23:21,083 INFO L226 Difference]: Without dead ends: 274 [2023-11-29 01:23:21,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:23:21,083 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 198 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:21,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 59 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:23:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2023-11-29 01:23:21,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2023-11-29 01:23:21,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 224 states have (on average 1.3883928571428572) internal successors, (311), 263 states have internal predecessors, (311), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 01:23:21,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 325 transitions. [2023-11-29 01:23:21,093 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 325 transitions. Word has length 48 [2023-11-29 01:23:21,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:21,094 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 325 transitions. [2023-11-29 01:23:21,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 325 transitions. [2023-11-29 01:23:21,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 01:23:21,095 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:21,095 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2023-11-29 01:23:21,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:23:21,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:23:21,302 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:21,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:21,302 INFO L85 PathProgramCache]: Analyzing trace with hash 584655885, now seen corresponding path program 1 times [2023-11-29 01:23:21,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:21,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786458662] [2023-11-29 01:23:21,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:21,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:21,311 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:21,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424440654] [2023-11-29 01:23:21,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:21,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:21,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:21,313 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:21,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:23:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:21,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:23:21,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:21,510 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:21,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:21,640 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:21,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:21,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786458662] [2023-11-29 01:23:21,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:21,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424440654] [2023-11-29 01:23:21,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424440654] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:23:21,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:23:21,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 01:23:21,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600923003] [2023-11-29 01:23:21,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:21,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:23:21,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:21,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:23:21,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:23:21,642 INFO L87 Difference]: Start difference. First operand 274 states and 325 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:22,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:22,087 INFO L93 Difference]: Finished difference Result 306 states and 344 transitions. [2023-11-29 01:23:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:23:22,088 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2023-11-29 01:23:22,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:22,090 INFO L225 Difference]: With dead ends: 306 [2023-11-29 01:23:22,090 INFO L226 Difference]: Without dead ends: 295 [2023-11-29 01:23:22,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:23:22,091 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 290 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:22,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 181 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:23:22,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-11-29 01:23:22,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 276. [2023-11-29 01:23:22,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 231 states have (on average 1.3203463203463204) internal successors, (305), 264 states have internal predecessors, (305), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 01:23:22,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 321 transitions. [2023-11-29 01:23:22,103 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 321 transitions. Word has length 49 [2023-11-29 01:23:22,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:22,103 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 321 transitions. [2023-11-29 01:23:22,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:22,104 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 321 transitions. [2023-11-29 01:23:22,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 01:23:22,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:22,105 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-11-29 01:23:22,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:23:22,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 01:23:22,305 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:22,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:22,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1243625267, now seen corresponding path program 1 times [2023-11-29 01:23:22,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:22,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704192253] [2023-11-29 01:23:22,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:22,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:22,314 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:22,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417578459] [2023-11-29 01:23:22,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:22,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:22,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:22,316 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:22,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:23:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:22,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:23:22,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:22,565 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:22,565 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:23:22,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:22,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704192253] [2023-11-29 01:23:22,566 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:22,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417578459] [2023-11-29 01:23:22,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417578459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:22,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:22,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:23:22,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996520573] [2023-11-29 01:23:22,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:22,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:23:22,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:22,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:23:22,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:23:22,568 INFO L87 Difference]: Start difference. First operand 276 states and 321 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:26,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:23:30,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:23:31,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:31,503 INFO L93 Difference]: Finished difference Result 299 states and 345 transitions. [2023-11-29 01:23:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:23:31,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2023-11-29 01:23:31,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:31,505 INFO L225 Difference]: With dead ends: 299 [2023-11-29 01:23:31,505 INFO L226 Difference]: Without dead ends: 236 [2023-11-29 01:23:31,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:23:31,507 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 126 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:31,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 60 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 199 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2023-11-29 01:23:31,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-29 01:23:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 220. [2023-11-29 01:23:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 192 states have (on average 1.2083333333333333) internal successors, (232), 209 states have internal predecessors, (232), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:23:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 244 transitions. [2023-11-29 01:23:31,519 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 244 transitions. Word has length 56 [2023-11-29 01:23:31,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:31,520 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 244 transitions. [2023-11-29 01:23:31,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:23:31,520 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 244 transitions. [2023-11-29 01:23:31,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 01:23:31,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:31,521 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 01:23:31,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 01:23:31,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 01:23:31,727 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:31,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:31,727 INFO L85 PathProgramCache]: Analyzing trace with hash -497571513, now seen corresponding path program 1 times [2023-11-29 01:23:31,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:31,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012594303] [2023-11-29 01:23:31,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:31,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:31,738 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:31,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1706523232] [2023-11-29 01:23:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:31,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:31,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:31,739 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:31,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:23:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:31,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:23:31,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:31,999 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:23:32,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:32,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:32,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012594303] [2023-11-29 01:23:32,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:32,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706523232] [2023-11-29 01:23:32,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706523232] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:23:32,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:23:32,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 01:23:32,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150522602] [2023-11-29 01:23:32,192 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:32,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:23:32,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:32,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:23:32,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:23:32,193 INFO L87 Difference]: Start difference. First operand 220 states and 244 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:32,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:32,386 INFO L93 Difference]: Finished difference Result 220 states and 244 transitions. [2023-11-29 01:23:32,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:23:32,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2023-11-29 01:23:32,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:32,389 INFO L225 Difference]: With dead ends: 220 [2023-11-29 01:23:32,389 INFO L226 Difference]: Without dead ends: 219 [2023-11-29 01:23:32,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:23:32,391 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 107 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:32,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 45 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:23:32,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2023-11-29 01:23:32,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2023-11-29 01:23:32,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 192 states have (on average 1.1927083333333333) internal successors, (229), 208 states have internal predecessors, (229), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:23:32,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 241 transitions. [2023-11-29 01:23:32,403 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 241 transitions. Word has length 76 [2023-11-29 01:23:32,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:32,403 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 241 transitions. [2023-11-29 01:23:32,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:32,404 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 241 transitions. [2023-11-29 01:23:32,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 01:23:32,404 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:32,405 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 01:23:32,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 01:23:32,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 01:23:32,605 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:32,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:32,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1755152404, now seen corresponding path program 1 times [2023-11-29 01:23:32,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:32,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446143481] [2023-11-29 01:23:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:32,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:32,615 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:32,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [511450683] [2023-11-29 01:23:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:32,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:32,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:32,617 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:32,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:23:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:32,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:23:32,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:32,942 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:23:32,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:33,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:33,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446143481] [2023-11-29 01:23:33,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:33,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511450683] [2023-11-29 01:23:33,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511450683] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:23:33,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:23:33,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 01:23:33,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442446542] [2023-11-29 01:23:33,100 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:33,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:23:33,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:33,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:23:33,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:23:33,101 INFO L87 Difference]: Start difference. First operand 219 states and 241 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:33,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:33,346 INFO L93 Difference]: Finished difference Result 229 states and 249 transitions. [2023-11-29 01:23:33,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:23:33,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2023-11-29 01:23:33,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:33,348 INFO L225 Difference]: With dead ends: 229 [2023-11-29 01:23:33,348 INFO L226 Difference]: Without dead ends: 225 [2023-11-29 01:23:33,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:23:33,349 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 42 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:33,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 130 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:23:33,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-11-29 01:23:33,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 224. [2023-11-29 01:23:33,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 197 states have (on average 1.1827411167512691) internal successors, (233), 213 states have internal predecessors, (233), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:23:33,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 245 transitions. [2023-11-29 01:23:33,361 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 245 transitions. Word has length 77 [2023-11-29 01:23:33,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:33,361 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 245 transitions. [2023-11-29 01:23:33,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:33,362 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 245 transitions. [2023-11-29 01:23:33,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 01:23:33,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:33,363 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 01:23:33,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 01:23:33,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 01:23:33,566 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:33,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:33,566 INFO L85 PathProgramCache]: Analyzing trace with hash 813530251, now seen corresponding path program 1 times [2023-11-29 01:23:33,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:33,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311105003] [2023-11-29 01:23:33,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:33,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:33,574 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:33,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [674510949] [2023-11-29 01:23:33,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:33,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:33,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:33,576 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:33,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:23:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:33,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:23:33,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:33,909 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:23:33,909 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:38,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:38,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311105003] [2023-11-29 01:23:38,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:38,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674510949] [2023-11-29 01:23:38,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674510949] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:23:38,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:23:38,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 01:23:38,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508695919] [2023-11-29 01:23:38,317 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:38,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:23:38,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:38,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:23:38,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:23:38,318 INFO L87 Difference]: Start difference. First operand 224 states and 245 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:38,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:38,451 INFO L93 Difference]: Finished difference Result 224 states and 245 transitions. [2023-11-29 01:23:38,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:23:38,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 80 [2023-11-29 01:23:38,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:38,453 INFO L225 Difference]: With dead ends: 224 [2023-11-29 01:23:38,453 INFO L226 Difference]: Without dead ends: 215 [2023-11-29 01:23:38,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:23:38,454 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 131 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:38,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 45 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:23:38,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-29 01:23:38,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2023-11-29 01:23:38,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 192 states have (on average 1.140625) internal successors, (219), 204 states have internal predecessors, (219), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:23:38,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 231 transitions. [2023-11-29 01:23:38,466 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 231 transitions. Word has length 80 [2023-11-29 01:23:38,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:38,466 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 231 transitions. [2023-11-29 01:23:38,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:38,466 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 231 transitions. [2023-11-29 01:23:38,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 01:23:38,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:38,468 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 01:23:38,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 01:23:38,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 01:23:38,673 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:38,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:38,674 INFO L85 PathProgramCache]: Analyzing trace with hash 544222010, now seen corresponding path program 1 times [2023-11-29 01:23:38,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:38,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825213715] [2023-11-29 01:23:38,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:38,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:38,680 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:38,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1190187488] [2023-11-29 01:23:38,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:38,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:38,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:38,681 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:38,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 01:23:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:38,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:23:38,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:38,809 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:23:38,809 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:38,984 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:23:38,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:38,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825213715] [2023-11-29 01:23:38,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:38,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190187488] [2023-11-29 01:23:38,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190187488] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:23:38,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:23:38,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 01:23:38,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019523711] [2023-11-29 01:23:38,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:38,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:23:38,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:38,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:23:38,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:23:38,986 INFO L87 Difference]: Start difference. First operand 215 states and 231 transitions. Second operand has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:23:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:39,368 INFO L93 Difference]: Finished difference Result 236 states and 245 transitions. [2023-11-29 01:23:39,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:23:39,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 81 [2023-11-29 01:23:39,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:39,370 INFO L225 Difference]: With dead ends: 236 [2023-11-29 01:23:39,370 INFO L226 Difference]: Without dead ends: 221 [2023-11-29 01:23:39,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:23:39,371 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 274 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:39,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 152 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:23:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2023-11-29 01:23:39,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 205. [2023-11-29 01:23:39,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 184 states have (on average 1.1032608695652173) internal successors, (203), 195 states have internal predecessors, (203), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 01:23:39,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 213 transitions. [2023-11-29 01:23:39,379 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 213 transitions. Word has length 81 [2023-11-29 01:23:39,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:39,380 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 213 transitions. [2023-11-29 01:23:39,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:23:39,380 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 213 transitions. [2023-11-29 01:23:39,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 01:23:39,381 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:39,381 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 01:23:39,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 01:23:39,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 01:23:39,581 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:39,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:39,582 INFO L85 PathProgramCache]: Analyzing trace with hash -876927387, now seen corresponding path program 1 times [2023-11-29 01:23:39,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:39,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425555648] [2023-11-29 01:23:39,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:39,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:39,591 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:39,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [201625485] [2023-11-29 01:23:39,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:39,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:39,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:39,593 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:39,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 01:23:39,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:39,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:23:39,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:39,769 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:23:39,769 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:39,915 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:23:39,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:39,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425555648] [2023-11-29 01:23:39,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:39,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201625485] [2023-11-29 01:23:39,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201625485] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:23:39,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:23:39,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-29 01:23:39,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343623501] [2023-11-29 01:23:39,916 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:39,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:23:39,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:39,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:23:39,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:23:39,918 INFO L87 Difference]: Start difference. First operand 205 states and 213 transitions. Second operand has 14 states, 14 states have (on average 12.071428571428571) internal successors, (169), 14 states have internal predecessors, (169), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:23:40,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:40,083 INFO L93 Difference]: Finished difference Result 360 states and 368 transitions. [2023-11-29 01:23:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:23:40,083 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.071428571428571) internal successors, (169), 14 states have internal predecessors, (169), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 91 [2023-11-29 01:23:40,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:40,085 INFO L225 Difference]: With dead ends: 360 [2023-11-29 01:23:40,085 INFO L226 Difference]: Without dead ends: 329 [2023-11-29 01:23:40,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:23:40,086 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 151 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:40,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 495 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:23:40,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-29 01:23:40,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 290. [2023-11-29 01:23:40,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 265 states have (on average 1.120754716981132) internal successors, (297), 276 states have internal predecessors, (297), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 01:23:40,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 311 transitions. [2023-11-29 01:23:40,097 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 311 transitions. Word has length 91 [2023-11-29 01:23:40,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:40,097 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 311 transitions. [2023-11-29 01:23:40,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.071428571428571) internal successors, (169), 14 states have internal predecessors, (169), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:23:40,098 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 311 transitions. [2023-11-29 01:23:40,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 01:23:40,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:40,099 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 01:23:40,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 01:23:40,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:40,299 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:40,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash -829717042, now seen corresponding path program 2 times [2023-11-29 01:23:40,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:40,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298728873] [2023-11-29 01:23:40,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:40,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:40,311 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:40,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326078492] [2023-11-29 01:23:40,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:23:40,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:40,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:40,313 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:40,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 01:23:40,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:23:40,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:23:40,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:23:40,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:40,802 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 01:23:40,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:23:40,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:40,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298728873] [2023-11-29 01:23:40,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:40,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326078492] [2023-11-29 01:23:40,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326078492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:23:40,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:23:40,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:23:40,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658973311] [2023-11-29 01:23:40,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:23:40,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:23:40,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:40,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:23:40,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:23:40,804 INFO L87 Difference]: Start difference. First operand 290 states and 311 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:40,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:40,946 INFO L93 Difference]: Finished difference Result 291 states and 311 transitions. [2023-11-29 01:23:40,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:23:40,947 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 119 [2023-11-29 01:23:40,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:40,949 INFO L225 Difference]: With dead ends: 291 [2023-11-29 01:23:40,949 INFO L226 Difference]: Without dead ends: 283 [2023-11-29 01:23:40,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:23:40,950 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 97 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:40,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 44 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:23:40,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-29 01:23:40,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2023-11-29 01:23:40,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 259 states have (on average 1.1003861003861004) internal successors, (285), 269 states have internal predecessors, (285), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-29 01:23:40,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 299 transitions. [2023-11-29 01:23:40,967 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 299 transitions. Word has length 119 [2023-11-29 01:23:40,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:40,968 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 299 transitions. [2023-11-29 01:23:40,968 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:23:40,968 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 299 transitions. [2023-11-29 01:23:40,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 01:23:40,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:40,969 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-29 01:23:40,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 01:23:41,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:41,170 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:41,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:41,170 INFO L85 PathProgramCache]: Analyzing trace with hash -829715856, now seen corresponding path program 1 times [2023-11-29 01:23:41,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:41,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545631916] [2023-11-29 01:23:41,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:41,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:41,179 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:41,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1058315972] [2023-11-29 01:23:41,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:41,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:41,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:41,180 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:41,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 01:23:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:41,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:23:41,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:41,338 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:23:41,338 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:23:41,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:41,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545631916] [2023-11-29 01:23:41,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:41,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058315972] [2023-11-29 01:23:41,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058315972] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:23:41,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:23:41,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 01:23:41,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100556437] [2023-11-29 01:23:41,463 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:41,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:23:41,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:41,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:23:41,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:23:41,464 INFO L87 Difference]: Start difference. First operand 283 states and 299 transitions. Second operand has 8 states, 7 states have (on average 30.142857142857142) internal successors, (211), 8 states have internal predecessors, (211), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:23:41,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:41,521 INFO L93 Difference]: Finished difference Result 325 states and 330 transitions. [2023-11-29 01:23:41,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:23:41,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.142857142857142) internal successors, (211), 8 states have internal predecessors, (211), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 119 [2023-11-29 01:23:41,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:41,524 INFO L225 Difference]: With dead ends: 325 [2023-11-29 01:23:41,524 INFO L226 Difference]: Without dead ends: 324 [2023-11-29 01:23:41,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:23:41,525 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 28 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:41,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 341 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:23:41,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-11-29 01:23:41,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 309. [2023-11-29 01:23:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 284 states have (on average 1.091549295774648) internal successors, (310), 294 states have internal predecessors, (310), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 01:23:41,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 326 transitions. [2023-11-29 01:23:41,549 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 326 transitions. Word has length 119 [2023-11-29 01:23:41,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:41,550 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 326 transitions. [2023-11-29 01:23:41,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.142857142857142) internal successors, (211), 8 states have internal predecessors, (211), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:23:41,550 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 326 transitions. [2023-11-29 01:23:41,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 01:23:41,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:41,551 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1] [2023-11-29 01:23:41,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 01:23:41,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 01:23:41,752 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:41,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:41,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1861199030, now seen corresponding path program 1 times [2023-11-29 01:23:41,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:41,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419881981] [2023-11-29 01:23:41,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:41,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:41,761 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:41,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1061338745] [2023-11-29 01:23:41,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:41,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:41,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:41,762 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:41,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 01:23:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:41,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:23:41,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:23:41,928 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:41,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:41,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419881981] [2023-11-29 01:23:41,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:41,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061338745] [2023-11-29 01:23:41,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061338745] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:23:41,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:23:42,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 01:23:42,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270454133] [2023-11-29 01:23:42,000 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:42,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:23:42,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:42,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:23:42,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:23:42,002 INFO L87 Difference]: Start difference. First operand 309 states and 326 transitions. Second operand has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:23:42,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:23:42,191 INFO L93 Difference]: Finished difference Result 314 states and 326 transitions. [2023-11-29 01:23:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:23:42,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 125 [2023-11-29 01:23:42,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:23:42,196 INFO L225 Difference]: With dead ends: 314 [2023-11-29 01:23:42,196 INFO L226 Difference]: Without dead ends: 312 [2023-11-29 01:23:42,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:23:42,197 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 35 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:23:42,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 115 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:23:42,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-29 01:23:42,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 309. [2023-11-29 01:23:42,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 284 states have (on average 1.0845070422535212) internal successors, (308), 294 states have internal predecessors, (308), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 01:23:42,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 324 transitions. [2023-11-29 01:23:42,210 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 324 transitions. Word has length 125 [2023-11-29 01:23:42,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:23:42,211 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 324 transitions. [2023-11-29 01:23:42,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:23:42,211 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 324 transitions. [2023-11-29 01:23:42,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 01:23:42,212 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:23:42,212 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2023-11-29 01:23:42,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 01:23:42,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:42,413 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:23:42,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:23:42,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1905876344, now seen corresponding path program 1 times [2023-11-29 01:23:42,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:23:42,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395545983] [2023-11-29 01:23:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:42,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:23:42,422 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:23:42,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936220664] [2023-11-29 01:23:42,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:23:42,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:23:42,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:23:42,423 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:23:42,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 01:23:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:23:42,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 01:23:42,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:23:42,821 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 3 proven. 117 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 01:23:42,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:23:43,928 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 3 proven. 117 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 01:23:43,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:23:43,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395545983] [2023-11-29 01:23:43,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:23:43,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936220664] [2023-11-29 01:23:43,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936220664] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:23:43,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:23:43,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 17 [2023-11-29 01:23:43,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272893012] [2023-11-29 01:23:43,932 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:23:43,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 01:23:43,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:23:43,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 01:23:43,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:23:43,934 INFO L87 Difference]: Start difference. First operand 309 states and 324 transitions. Second operand has 18 states, 17 states have (on average 13.647058823529411) internal successors, (232), 18 states have internal predecessors, (232), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:23:48,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:23:52,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:23:57,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:01,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:05,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:05,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:24:05,651 INFO L93 Difference]: Finished difference Result 311 states and 324 transitions. [2023-11-29 01:24:05,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 01:24:05,652 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.647058823529411) internal successors, (232), 18 states have internal predecessors, (232), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 127 [2023-11-29 01:24:05,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:24:05,654 INFO L225 Difference]: With dead ends: 311 [2023-11-29 01:24:05,654 INFO L226 Difference]: Without dead ends: 310 [2023-11-29 01:24:05,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:24:05,655 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 189 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 17 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:24:05,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 262 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1086 Invalid, 5 Unknown, 0 Unchecked, 21.4s Time] [2023-11-29 01:24:05,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-29 01:24:05,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 308. [2023-11-29 01:24:05,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 284 states have (on average 1.0704225352112675) internal successors, (304), 293 states have internal predecessors, (304), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 01:24:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 320 transitions. [2023-11-29 01:24:05,680 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 320 transitions. Word has length 127 [2023-11-29 01:24:05,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:24:05,680 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 320 transitions. [2023-11-29 01:24:05,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.647058823529411) internal successors, (232), 18 states have internal predecessors, (232), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:24:05,681 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 320 transitions. [2023-11-29 01:24:05,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 01:24:05,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:24:05,682 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1] [2023-11-29 01:24:05,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 01:24:05,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:24:05,883 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:24:05,883 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:24:05,883 INFO L85 PathProgramCache]: Analyzing trace with hash -878207743, now seen corresponding path program 2 times [2023-11-29 01:24:05,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:24:05,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052613061] [2023-11-29 01:24:05,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:24:05,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:24:05,892 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:24:05,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585418631] [2023-11-29 01:24:05,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:24:05,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:24:05,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:24:05,894 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:24:05,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 01:24:05,958 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:24:05,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:24:05,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 01:24:05,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:24:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:24:06,307 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:24:06,693 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:24:06,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:24:06,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052613061] [2023-11-29 01:24:06,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:24:06,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585418631] [2023-11-29 01:24:06,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585418631] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:24:06,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:24:06,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-29 01:24:06,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535305572] [2023-11-29 01:24:06,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:24:06,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 01:24:06,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:24:06,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 01:24:06,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-29 01:24:06,696 INFO L87 Difference]: Start difference. First operand 308 states and 320 transitions. Second operand has 16 states, 15 states have (on average 15.933333333333334) internal successors, (239), 16 states have internal predecessors, (239), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:24:07,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:24:07,596 INFO L93 Difference]: Finished difference Result 343 states and 350 transitions. [2023-11-29 01:24:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:24:07,597 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 15.933333333333334) internal successors, (239), 16 states have internal predecessors, (239), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 133 [2023-11-29 01:24:07,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:24:07,599 INFO L225 Difference]: With dead ends: 343 [2023-11-29 01:24:07,599 INFO L226 Difference]: Without dead ends: 340 [2023-11-29 01:24:07,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2023-11-29 01:24:07,600 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 186 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:24:07,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 365 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 01:24:07,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-29 01:24:07,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 331. [2023-11-29 01:24:07,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 306 states have (on average 1.065359477124183) internal successors, (326), 315 states have internal predecessors, (326), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 01:24:07,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 344 transitions. [2023-11-29 01:24:07,628 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 344 transitions. Word has length 133 [2023-11-29 01:24:07,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:24:07,628 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 344 transitions. [2023-11-29 01:24:07,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 15.933333333333334) internal successors, (239), 16 states have internal predecessors, (239), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:24:07,629 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 344 transitions. [2023-11-29 01:24:07,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 01:24:07,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:24:07,630 INFO L195 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-11-29 01:24:07,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 01:24:07,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:24:07,832 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:24:07,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:24:07,832 INFO L85 PathProgramCache]: Analyzing trace with hash -176987193, now seen corresponding path program 1 times [2023-11-29 01:24:07,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:24:07,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60781434] [2023-11-29 01:24:07,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:24:07,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:24:07,841 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:24:07,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [704164364] [2023-11-29 01:24:07,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:24:07,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:24:07,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:24:07,842 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:24:07,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 01:24:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:24:07,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 01:24:07,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:24:08,222 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:24:08,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:24:09,317 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:24:09,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:24:09,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60781434] [2023-11-29 01:24:09,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:24:09,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704164364] [2023-11-29 01:24:09,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704164364] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:24:09,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:24:09,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-11-29 01:24:09,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655392881] [2023-11-29 01:24:09,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:24:09,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 01:24:09,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:24:09,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 01:24:09,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:24:09,319 INFO L87 Difference]: Start difference. First operand 331 states and 344 transitions. Second operand has 18 states, 17 states have (on average 14.764705882352942) internal successors, (251), 18 states have internal predecessors, (251), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:24:14,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:18,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:22,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:25,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:29,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:33,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:34,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:38,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:40,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:44,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:48,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:52,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:24:56,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:25:00,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:25:05,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 01:25:05,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:05,400 INFO L93 Difference]: Finished difference Result 406 states and 424 transitions. [2023-11-29 01:25:05,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 01:25:05,401 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 14.764705882352942) internal successors, (251), 18 states have internal predecessors, (251), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 139 [2023-11-29 01:25:05,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:05,403 INFO L225 Difference]: With dead ends: 406 [2023-11-29 01:25:05,403 INFO L226 Difference]: Without dead ends: 383 [2023-11-29 01:25:05,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=238, Invalid=412, Unknown=0, NotChecked=0, Total=650 [2023-11-29 01:25:05,404 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 436 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 53 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:05,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 290 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 920 Invalid, 11 Unknown, 0 Unchecked, 55.5s Time] [2023-11-29 01:25:05,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-11-29 01:25:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 377. [2023-11-29 01:25:05,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 351 states have (on average 1.056980056980057) internal successors, (371), 360 states have internal predecessors, (371), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:25:05,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 391 transitions. [2023-11-29 01:25:05,440 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 391 transitions. Word has length 139 [2023-11-29 01:25:05,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:05,440 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 391 transitions. [2023-11-29 01:25:05,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 14.764705882352942) internal successors, (251), 18 states have internal predecessors, (251), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 01:25:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 391 transitions. [2023-11-29 01:25:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-29 01:25:05,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:05,442 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1] [2023-11-29 01:25:05,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 01:25:05,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:05,643 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:25:05,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:05,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1926934442, now seen corresponding path program 2 times [2023-11-29 01:25:05,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:05,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337911548] [2023-11-29 01:25:05,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:05,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:05,658 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:25:05,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464492039] [2023-11-29 01:25:05,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:25:05,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:05,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:25:05,660 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:25:05,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 01:25:05,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:25:05,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:25:05,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:25:05,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:25:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-11-29 01:25:05,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:25:05,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:05,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337911548] [2023-11-29 01:25:05,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:25:05,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464492039] [2023-11-29 01:25:05,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464492039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:25:05,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:25:05,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:25:05,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566571251] [2023-11-29 01:25:05,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:25:05,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:25:05,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:05,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:25:05,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:25:05,831 INFO L87 Difference]: Start difference. First operand 377 states and 391 transitions. Second operand has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:25:05,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:05,972 INFO L93 Difference]: Finished difference Result 377 states and 391 transitions. [2023-11-29 01:25:05,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:25:05,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 209 [2023-11-29 01:25:05,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:05,976 INFO L225 Difference]: With dead ends: 377 [2023-11-29 01:25:05,976 INFO L226 Difference]: Without dead ends: 374 [2023-11-29 01:25:05,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:25:05,978 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 46 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:05,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 45 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:25:05,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2023-11-29 01:25:06,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2023-11-29 01:25:06,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 351 states have (on average 1.03988603988604) internal successors, (365), 357 states have internal predecessors, (365), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 01:25:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 385 transitions. [2023-11-29 01:25:06,016 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 385 transitions. Word has length 209 [2023-11-29 01:25:06,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:06,017 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 385 transitions. [2023-11-29 01:25:06,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.666666666666668) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:25:06,017 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 385 transitions. [2023-11-29 01:25:06,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-11-29 01:25:06,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:06,019 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1] [2023-11-29 01:25:06,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 01:25:06,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:06,219 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:25:06,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:06,220 INFO L85 PathProgramCache]: Analyzing trace with hash -827082655, now seen corresponding path program 2 times [2023-11-29 01:25:06,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:06,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835801011] [2023-11-29 01:25:06,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:06,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:06,232 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:25:06,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [809742786] [2023-11-29 01:25:06,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:25:06,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:06,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:25:06,233 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:25:06,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 01:25:06,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:25:06,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:25:06,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:25:06,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:25:06,662 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:25:06,662 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:25:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 01:25:07,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:07,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835801011] [2023-11-29 01:25:07,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:25:07,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809742786] [2023-11-29 01:25:07,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809742786] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:25:07,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:25:07,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 29 [2023-11-29 01:25:07,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195935881] [2023-11-29 01:25:07,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:25:07,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 01:25:07,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:07,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 01:25:07,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2023-11-29 01:25:07,047 INFO L87 Difference]: Start difference. First operand 374 states and 385 transitions. Second operand has 30 states, 29 states have (on average 16.310344827586206) internal successors, (473), 30 states have internal predecessors, (473), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:25:07,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:07,674 INFO L93 Difference]: Finished difference Result 737 states and 751 transitions. [2023-11-29 01:25:07,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-11-29 01:25:07,675 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 16.310344827586206) internal successors, (473), 30 states have internal predecessors, (473), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 256 [2023-11-29 01:25:07,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:07,679 INFO L225 Difference]: With dead ends: 737 [2023-11-29 01:25:07,679 INFO L226 Difference]: Without dead ends: 733 [2023-11-29 01:25:07,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1049, Invalid=2143, Unknown=0, NotChecked=0, Total=3192 [2023-11-29 01:25:07,681 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 372 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:07,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1002 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:25:07,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-11-29 01:25:07,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 658. [2023-11-29 01:25:07,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 616 states have (on average 1.0600649350649352) internal successors, (653), 627 states have internal predecessors, (653), 21 states have call successors, (21), 14 states have call predecessors, (21), 14 states have return successors, (21), 16 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:25:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 695 transitions. [2023-11-29 01:25:07,756 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 695 transitions. Word has length 256 [2023-11-29 01:25:07,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:07,757 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 695 transitions. [2023-11-29 01:25:07,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 16.310344827586206) internal successors, (473), 30 states have internal predecessors, (473), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:25:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 695 transitions. [2023-11-29 01:25:07,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-11-29 01:25:07,760 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:07,760 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1] [2023-11-29 01:25:07,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 01:25:07,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:07,961 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:25:07,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:07,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1761604520, now seen corresponding path program 2 times [2023-11-29 01:25:07,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:07,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519663532] [2023-11-29 01:25:07,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:07,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:07,978 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:25:07,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1044768788] [2023-11-29 01:25:07,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:25:07,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:07,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:25:07,980 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:25:07,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 01:25:08,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:25:08,042 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:25:08,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:25:08,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:25:08,331 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2023-11-29 01:25:08,331 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:25:08,612 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2023-11-29 01:25:08,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:25:08,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519663532] [2023-11-29 01:25:08,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:25:08,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044768788] [2023-11-29 01:25:08,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044768788] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:25:08,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:25:08,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 01:25:08,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266315691] [2023-11-29 01:25:08,613 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:25:08,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:25:08,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:25:08,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:25:08,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:25:08,615 INFO L87 Difference]: Start difference. First operand 658 states and 695 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:25:08,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:25:08,698 INFO L93 Difference]: Finished difference Result 658 states and 695 transitions. [2023-11-29 01:25:08,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:25:08,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 287 [2023-11-29 01:25:08,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:25:08,702 INFO L225 Difference]: With dead ends: 658 [2023-11-29 01:25:08,702 INFO L226 Difference]: Without dead ends: 657 [2023-11-29 01:25:08,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:25:08,703 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 146 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:25:08,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 115 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:25:08,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2023-11-29 01:25:08,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2023-11-29 01:25:08,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 616 states have (on average 1.047077922077922) internal successors, (645), 626 states have internal predecessors, (645), 21 states have call successors, (21), 14 states have call predecessors, (21), 14 states have return successors, (21), 16 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 01:25:08,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 687 transitions. [2023-11-29 01:25:08,756 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 687 transitions. Word has length 287 [2023-11-29 01:25:08,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:25:08,756 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 687 transitions. [2023-11-29 01:25:08,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:25:08,756 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 687 transitions. [2023-11-29 01:25:08,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-11-29 01:25:08,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:25:08,758 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 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, 1, 1] [2023-11-29 01:25:08,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 01:25:08,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:08,959 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2023-11-29 01:25:08,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:25:08,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1199658775, now seen corresponding path program 3 times [2023-11-29 01:25:08,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:25:08,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530854738] [2023-11-29 01:25:08,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:25:08,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:25:08,978 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:25:08,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286220536] [2023-11-29 01:25:08,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:25:08,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:25:08,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:25:08,979 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:25:08,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_566e426f-705d-4177-bf79-bc542f3241e9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 01:25:13,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-11-29 01:25:13,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:25:13,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:25:13,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:25:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 18 proven. 840 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 01:25:14,146 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:34:34,933 WARN L293 SmtUtils]: Spent 5.48s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)