./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ --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 5cb4924cbdb465eb5009b33592f9047ad895ad10dbe627600c12529f62c9845d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:37:00,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:37:00,349 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 21:37:00,356 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:37:00,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:37:00,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:37:00,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:37:00,388 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:37:00,389 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:37:00,390 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:37:00,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:37:00,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:37:00,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:37:00,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:37:00,398 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:37:00,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:37:00,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:37:00,401 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:37:00,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:37:00,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:37:00,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:37:00,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:37:00,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:37:00,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:37:00,405 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:37:00,406 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:37:00,406 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:37:00,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:37:00,407 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:37:00,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:37:00,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:37:00,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:37:00,411 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:37:00,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:37:00,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:37:00,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:37:00,412 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:37:00,412 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:37:00,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:37:00,413 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:37:00,413 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:37:00,413 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:37:00,414 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:37:00,414 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:37:00,415 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_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5cb4924cbdb465eb5009b33592f9047ad895ad10dbe627600c12529f62c9845d [2023-11-23 21:37:00,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:37:00,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:37:00,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:37:00,815 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:37:00,816 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:37:00,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c [2023-11-23 21:37:04,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:37:04,486 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:37:04,487 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound50.c [2023-11-23 21:37:04,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/data/0dc16a5ed/10247bd00b8c43d889ef893041481e4f/FLAGe82784bf0 [2023-11-23 21:37:04,519 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/data/0dc16a5ed/10247bd00b8c43d889ef893041481e4f [2023-11-23 21:37:04,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:37:04,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:37:04,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:04,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:37:04,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:37:04,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1563a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04, skipping insertion in model container [2023-11-23 21:37:04,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,562 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:37:04,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:04,766 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:37:04,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:37:04,804 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:37:04,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04 WrapperNode [2023-11-23 21:37:04,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:37:04,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:04,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:37:04,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:37:04,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,851 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2023-11-23 21:37:04,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:37:04,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:37:04,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:37:04,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:37:04,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,874 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,885 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:37:04,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,903 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:37:04,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:37:04,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:37:04,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:37:04,910 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (1/1) ... [2023-11-23 21:37:04,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:37:04,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:04,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:37:04,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:37:05,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:37:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:37:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:37:05,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:37:05,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:37:05,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:37:05,081 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:37:05,084 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:37:05,482 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:37:05,519 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:37:05,520 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:37:05,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:05 BoogieIcfgContainer [2023-11-23 21:37:05,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:37:05,524 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:37:05,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:37:05,528 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:37:05,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:37:04" (1/3) ... [2023-11-23 21:37:05,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a77ec09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:37:05, skipping insertion in model container [2023-11-23 21:37:05,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:37:04" (2/3) ... [2023-11-23 21:37:05,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a77ec09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:37:05, skipping insertion in model container [2023-11-23 21:37:05,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:05" (3/3) ... [2023-11-23 21:37:05,532 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound50.c [2023-11-23 21:37:05,552 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:37:05,552 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2023-11-23 21:37:05,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:37:05,614 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;@37006522, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:37:05,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-23 21:37:05,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 59 states have (on average 1.9322033898305084) internal successors, (114), 109 states have internal predecessors, (114), 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) [2023-11-23 21:37:05,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 21:37:05,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:05,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 21:37:05,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:05,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:05,635 INFO L85 PathProgramCache]: Analyzing trace with hash 179321260, now seen corresponding path program 1 times [2023-11-23 21:37:05,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:05,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777437883] [2023-11-23 21:37:05,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:05,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:05,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:05,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777437883] [2023-11-23 21:37:05,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777437883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:05,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:05,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:05,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423169207] [2023-11-23 21:37:05,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:05,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:37:05,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:05,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:37:05,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:37:05,856 INFO L87 Difference]: Start difference. First operand has 117 states, 59 states have (on average 1.9322033898305084) internal successors, (114), 109 states have internal predecessors, (114), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:05,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:05,906 INFO L93 Difference]: Finished difference Result 228 states and 255 transitions. [2023-11-23 21:37:05,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:37:05,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 21:37:05,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:05,919 INFO L225 Difference]: With dead ends: 228 [2023-11-23 21:37:05,920 INFO L226 Difference]: Without dead ends: 110 [2023-11-23 21:37:05,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:37:05,929 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:05,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 116 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:37:05,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-11-23 21:37:06,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2023-11-23 21:37:06,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 58 states have (on average 1.793103448275862) internal successors, (104), 103 states have internal predecessors, (104), 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) [2023-11-23 21:37:06,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 114 transitions. [2023-11-23 21:37:06,091 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 114 transitions. Word has length 5 [2023-11-23 21:37:06,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:06,091 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 114 transitions. [2023-11-23 21:37:06,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:06,092 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 114 transitions. [2023-11-23 21:37:06,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 21:37:06,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:06,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 21:37:06,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:37:06,094 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:06,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:06,096 INFO L85 PathProgramCache]: Analyzing trace with hash 179380837, now seen corresponding path program 1 times [2023-11-23 21:37:06,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:06,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287200689] [2023-11-23 21:37:06,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:06,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:37:06,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:06,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287200689] [2023-11-23 21:37:06,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287200689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:06,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:06,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:06,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122919882] [2023-11-23 21:37:06,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:06,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:06,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:06,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:06,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:06,174 INFO L87 Difference]: Start difference. First operand 110 states and 114 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:06,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:06,407 INFO L93 Difference]: Finished difference Result 205 states and 214 transitions. [2023-11-23 21:37:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:06,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-23 21:37:06,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:06,413 INFO L225 Difference]: With dead ends: 205 [2023-11-23 21:37:06,414 INFO L226 Difference]: Without dead ends: 185 [2023-11-23 21:37:06,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:06,419 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 68 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:06,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 161 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:37:06,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-23 21:37:06,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 150. [2023-11-23 21:37:06,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 94 states have (on average 1.6170212765957446) internal successors, (152), 139 states have internal predecessors, (152), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:37:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 170 transitions. [2023-11-23 21:37:06,470 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 170 transitions. Word has length 5 [2023-11-23 21:37:06,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:06,473 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 170 transitions. [2023-11-23 21:37:06,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:06,475 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 170 transitions. [2023-11-23 21:37:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 21:37:06,477 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:06,477 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:06,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:37:06,479 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:06,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:06,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1083960687, now seen corresponding path program 1 times [2023-11-23 21:37:06,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:06,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596775407] [2023-11-23 21:37:06,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:06,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:06,520 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:06,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [619705064] [2023-11-23 21:37:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:06,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:06,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:06,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:06,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:37:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:06,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:37:06,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:37:06,709 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:06,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:06,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596775407] [2023-11-23 21:37:06,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:06,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619705064] [2023-11-23 21:37:06,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619705064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:06,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:06,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:06,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152677194] [2023-11-23 21:37:06,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:06,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:06,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:06,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:06,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:06,715 INFO L87 Difference]: Start difference. First operand 150 states and 170 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:37:06,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:06,860 INFO L93 Difference]: Finished difference Result 189 states and 198 transitions. [2023-11-23 21:37:06,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:06,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-23 21:37:06,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:06,864 INFO L225 Difference]: With dead ends: 189 [2023-11-23 21:37:06,865 INFO L226 Difference]: Without dead ends: 181 [2023-11-23 21:37:06,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:06,867 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 53 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:06,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 147 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:06,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-23 21:37:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 161. [2023-11-23 21:37:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 104 states have (on average 1.5673076923076923) internal successors, (163), 149 states have internal predecessors, (163), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:37:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 183 transitions. [2023-11-23 21:37:06,888 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 183 transitions. Word has length 26 [2023-11-23 21:37:06,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:06,889 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 183 transitions. [2023-11-23 21:37:06,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:37:06,889 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 183 transitions. [2023-11-23 21:37:06,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-23 21:37:06,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:06,891 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:06,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 21:37:07,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-23 21:37:07,112 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:07,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:07,114 INFO L85 PathProgramCache]: Analyzing trace with hash 756957147, now seen corresponding path program 1 times [2023-11-23 21:37:07,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:07,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112184084] [2023-11-23 21:37:07,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:07,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:07,140 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:07,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [253013462] [2023-11-23 21:37:07,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:07,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:07,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:07,143 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:07,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:37:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:07,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:07,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:07,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:37:07,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:07,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:07,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112184084] [2023-11-23 21:37:07,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:07,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253013462] [2023-11-23 21:37:07,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253013462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:07,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:07,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:07,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891393450] [2023-11-23 21:37:07,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:07,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:07,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:07,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:07,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:07,299 INFO L87 Difference]: Start difference. First operand 161 states and 183 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:37:07,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:07,441 INFO L93 Difference]: Finished difference Result 177 states and 194 transitions. [2023-11-23 21:37:07,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:07,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-23 21:37:07,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:07,447 INFO L225 Difference]: With dead ends: 177 [2023-11-23 21:37:07,447 INFO L226 Difference]: Without dead ends: 175 [2023-11-23 21:37:07,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:07,451 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 54 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:07,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 153 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:07,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-23 21:37:07,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 161. [2023-11-23 21:37:07,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 104 states have (on average 1.5480769230769231) internal successors, (161), 149 states have internal predecessors, (161), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:37:07,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 181 transitions. [2023-11-23 21:37:07,494 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 181 transitions. Word has length 27 [2023-11-23 21:37:07,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:07,495 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 181 transitions. [2023-11-23 21:37:07,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:37:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 181 transitions. [2023-11-23 21:37:07,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 21:37:07,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:07,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:07,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:07,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:07,721 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:07,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:07,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1990835155, now seen corresponding path program 1 times [2023-11-23 21:37:07,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:07,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122697185] [2023-11-23 21:37:07,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:07,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:07,735 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:07,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575246272] [2023-11-23 21:37:07,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:07,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:07,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:07,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:07,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:37:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:07,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:37:07,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:07,866 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:37:07,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:07,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:07,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122697185] [2023-11-23 21:37:07,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:07,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575246272] [2023-11-23 21:37:07,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575246272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:07,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:07,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:37:07,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551998775] [2023-11-23 21:37:07,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:07,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:37:07,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:07,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:37:07,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:07,870 INFO L87 Difference]: Start difference. First operand 161 states and 181 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:37:08,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:08,016 INFO L93 Difference]: Finished difference Result 183 states and 192 transitions. [2023-11-23 21:37:08,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:08,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-11-23 21:37:08,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:08,019 INFO L225 Difference]: With dead ends: 183 [2023-11-23 21:37:08,019 INFO L226 Difference]: Without dead ends: 175 [2023-11-23 21:37:08,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:37:08,020 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 45 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:08,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 161 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:08,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-23 21:37:08,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 164. [2023-11-23 21:37:08,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 107 states have (on average 1.485981308411215) internal successors, (159), 152 states have internal predecessors, (159), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:37:08,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 179 transitions. [2023-11-23 21:37:08,034 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 179 transitions. Word has length 28 [2023-11-23 21:37:08,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:08,035 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 179 transitions. [2023-11-23 21:37:08,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:37:08,035 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 179 transitions. [2023-11-23 21:37:08,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-23 21:37:08,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:08,037 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 21:37:08,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:08,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:08,260 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:08,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:08,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1932139797, now seen corresponding path program 1 times [2023-11-23 21:37:08,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:08,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219772548] [2023-11-23 21:37:08,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:08,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:08,275 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:08,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1396188144] [2023-11-23 21:37:08,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:08,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:08,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:08,277 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:08,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:37:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:08,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:37:08,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:08,437 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:37:08,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:08,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:08,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219772548] [2023-11-23 21:37:08,438 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:08,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396188144] [2023-11-23 21:37:08,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396188144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:08,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:08,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:08,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54141914] [2023-11-23 21:37:08,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:08,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:08,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:08,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:08,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:08,441 INFO L87 Difference]: Start difference. First operand 164 states and 179 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:37:08,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:08,646 INFO L93 Difference]: Finished difference Result 175 states and 184 transitions. [2023-11-23 21:37:08,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:08,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-23 21:37:08,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:08,649 INFO L225 Difference]: With dead ends: 175 [2023-11-23 21:37:08,649 INFO L226 Difference]: Without dead ends: 173 [2023-11-23 21:37:08,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:08,650 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 53 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:08,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 210 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:37:08,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-23 21:37:08,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 164. [2023-11-23 21:37:08,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 107 states have (on average 1.4672897196261683) internal successors, (157), 152 states have internal predecessors, (157), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-23 21:37:08,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 177 transitions. [2023-11-23 21:37:08,664 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 177 transitions. Word has length 30 [2023-11-23 21:37:08,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:08,664 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 177 transitions. [2023-11-23 21:37:08,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:37:08,665 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 177 transitions. [2023-11-23 21:37:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-23 21:37:08,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:08,666 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 21:37:08,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:08,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 21:37:08,888 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:08,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:08,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1747126169, now seen corresponding path program 1 times [2023-11-23 21:37:08,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:08,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180669791] [2023-11-23 21:37:08,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:08,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:08,903 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:08,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076310622] [2023-11-23 21:37:08,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:08,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:08,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:08,905 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:08,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:37:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:08,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:37:08,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:09,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:37:09,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:09,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:09,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180669791] [2023-11-23 21:37:09,204 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:09,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076310622] [2023-11-23 21:37:09,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076310622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:09,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:09,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:09,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301681787] [2023-11-23 21:37:09,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:09,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:09,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:09,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:09,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:09,207 INFO L87 Difference]: Start difference. First operand 164 states and 177 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:37:09,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:09,410 INFO L93 Difference]: Finished difference Result 169 states and 178 transitions. [2023-11-23 21:37:09,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:37:09,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-23 21:37:09,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:09,415 INFO L225 Difference]: With dead ends: 169 [2023-11-23 21:37:09,415 INFO L226 Difference]: Without dead ends: 141 [2023-11-23 21:37:09,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:09,418 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 70 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:09,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 143 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:37:09,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-23 21:37:09,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2023-11-23 21:37:09,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 86 states have (on average 1.5348837209302326) internal successors, (132), 131 states have internal predecessors, (132), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:37:09,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 148 transitions. [2023-11-23 21:37:09,431 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 148 transitions. Word has length 34 [2023-11-23 21:37:09,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:09,432 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 148 transitions. [2023-11-23 21:37:09,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:37:09,433 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 148 transitions. [2023-11-23 21:37:09,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-23 21:37:09,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:09,438 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:09,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:09,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:09,660 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:09,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:09,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1812886385, now seen corresponding path program 1 times [2023-11-23 21:37:09,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:09,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190514970] [2023-11-23 21:37:09,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:09,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:09,678 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:09,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054082432] [2023-11-23 21:37:09,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:09,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:09,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:09,680 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:09,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:37:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:09,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:37:09,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:09,951 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:37:09,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:09,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:09,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190514970] [2023-11-23 21:37:09,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:09,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054082432] [2023-11-23 21:37:09,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054082432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:09,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:09,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:09,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37644938] [2023-11-23 21:37:09,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:09,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:09,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:09,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:09,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:09,954 INFO L87 Difference]: Start difference. First operand 141 states and 148 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:37:10,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:10,070 INFO L93 Difference]: Finished difference Result 141 states and 148 transitions. [2023-11-23 21:37:10,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:10,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-23 21:37:10,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:10,074 INFO L225 Difference]: With dead ends: 141 [2023-11-23 21:37:10,074 INFO L226 Difference]: Without dead ends: 135 [2023-11-23 21:37:10,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:10,076 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 153 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:10,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 102 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:10,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-23 21:37:10,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2023-11-23 21:37:10,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 125 states have internal predecessors, (126), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:37:10,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 142 transitions. [2023-11-23 21:37:10,092 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 142 transitions. Word has length 47 [2023-11-23 21:37:10,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:10,094 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 142 transitions. [2023-11-23 21:37:10,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:37:10,095 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 142 transitions. [2023-11-23 21:37:10,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 21:37:10,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:10,100 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:10,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:10,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:10,319 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:10,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:10,320 INFO L85 PathProgramCache]: Analyzing trace with hash 364903199, now seen corresponding path program 1 times [2023-11-23 21:37:10,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:10,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726349879] [2023-11-23 21:37:10,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:10,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:10,336 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:10,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1966755018] [2023-11-23 21:37:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:10,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:10,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:10,341 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:10,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:37:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:10,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:37:10,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:10,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:37:10,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:10,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:10,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726349879] [2023-11-23 21:37:10,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:10,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966755018] [2023-11-23 21:37:10,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966755018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:10,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:10,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:10,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997653153] [2023-11-23 21:37:10,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:10,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:10,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:10,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:10,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:10,532 INFO L87 Difference]: Start difference. First operand 135 states and 142 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:37:10,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:10,650 INFO L93 Difference]: Finished difference Result 138 states and 145 transitions. [2023-11-23 21:37:10,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:10,650 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2023-11-23 21:37:10,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:10,652 INFO L225 Difference]: With dead ends: 138 [2023-11-23 21:37:10,652 INFO L226 Difference]: Without dead ends: 137 [2023-11-23 21:37:10,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:10,654 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:10,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:10,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-11-23 21:37:10,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2023-11-23 21:37:10,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 88 states have (on average 1.4545454545454546) internal successors, (128), 127 states have internal predecessors, (128), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:37:10,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 144 transitions. [2023-11-23 21:37:10,663 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 144 transitions. Word has length 48 [2023-11-23 21:37:10,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:10,663 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 144 transitions. [2023-11-23 21:37:10,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:37:10,664 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 144 transitions. [2023-11-23 21:37:10,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-23 21:37:10,665 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:10,665 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:10,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:10,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:10,884 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:10,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:10,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1515342495, now seen corresponding path program 1 times [2023-11-23 21:37:10,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:10,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925180695] [2023-11-23 21:37:10,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:10,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:10,897 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:10,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1503282186] [2023-11-23 21:37:10,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:10,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:10,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:10,899 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:10,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 21:37:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:10,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:37:10,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:37:11,026 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:11,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:11,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925180695] [2023-11-23 21:37:11,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:11,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503282186] [2023-11-23 21:37:11,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503282186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:11,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:11,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:37:11,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298719731] [2023-11-23 21:37:11,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:11,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:37:11,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:11,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:37:11,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:11,029 INFO L87 Difference]: Start difference. First operand 137 states and 144 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:37:11,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:11,132 INFO L93 Difference]: Finished difference Result 137 states and 144 transitions. [2023-11-23 21:37:11,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:37:11,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2023-11-23 21:37:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:11,134 INFO L225 Difference]: With dead ends: 137 [2023-11-23 21:37:11,134 INFO L226 Difference]: Without dead ends: 128 [2023-11-23 21:37:11,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:37:11,135 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 130 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:11,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 111 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:11,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-23 21:37:11,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2023-11-23 21:37:11,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 118 states have internal predecessors, (119), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:37:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 135 transitions. [2023-11-23 21:37:11,147 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 135 transitions. Word has length 50 [2023-11-23 21:37:11,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:11,148 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 135 transitions. [2023-11-23 21:37:11,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-23 21:37:11,149 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 135 transitions. [2023-11-23 21:37:11,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-23 21:37:11,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:11,150 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:11,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:11,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 21:37:11,371 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:11,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:11,372 INFO L85 PathProgramCache]: Analyzing trace with hash 269022963, now seen corresponding path program 1 times [2023-11-23 21:37:11,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:11,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63108644] [2023-11-23 21:37:11,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:11,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:11,383 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:11,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563907908] [2023-11-23 21:37:11,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:11,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:11,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:11,385 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:11,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 21:37:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:11,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:37:11,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:37:11,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:11,597 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:37:11,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:11,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63108644] [2023-11-23 21:37:11,598 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:11,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563907908] [2023-11-23 21:37:11,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563907908] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:11,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:11,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-23 21:37:11,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628705114] [2023-11-23 21:37:11,599 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:11,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:37:11,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:11,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:37:11,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:11,601 INFO L87 Difference]: Start difference. First operand 128 states and 135 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 21:37:11,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:11,752 INFO L93 Difference]: Finished difference Result 220 states and 246 transitions. [2023-11-23 21:37:11,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:37:11,753 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2023-11-23 21:37:11,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:11,754 INFO L225 Difference]: With dead ends: 220 [2023-11-23 21:37:11,755 INFO L226 Difference]: Without dead ends: 211 [2023-11-23 21:37:11,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:11,756 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 164 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:11,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 190 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:11,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-23 21:37:11,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 119. [2023-11-23 21:37:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 88 states have (on average 1.25) internal successors, (110), 109 states have internal predecessors, (110), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:37:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 126 transitions. [2023-11-23 21:37:11,765 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 126 transitions. Word has length 51 [2023-11-23 21:37:11,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:11,766 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 126 transitions. [2023-11-23 21:37:11,766 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 21:37:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 126 transitions. [2023-11-23 21:37:11,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 21:37:11,767 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:11,767 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-23 21:37:11,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:11,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 21:37:11,981 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:11,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:11,981 INFO L85 PathProgramCache]: Analyzing trace with hash -63646801, now seen corresponding path program 1 times [2023-11-23 21:37:11,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:11,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066288585] [2023-11-23 21:37:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:11,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:11,992 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:11,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079095514] [2023-11-23 21:37:11,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:11,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:11,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:11,994 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:12,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 21:37:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:12,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:37:12,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 21:37:12,133 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-23 21:37:12,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:12,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066288585] [2023-11-23 21:37:12,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:12,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079095514] [2023-11-23 21:37:12,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079095514] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:12,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:12,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-23 21:37:12,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958536664] [2023-11-23 21:37:12,295 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:12,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:37:12,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:12,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:37:12,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:12,297 INFO L87 Difference]: Start difference. First operand 119 states and 126 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-23 21:37:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:12,518 INFO L93 Difference]: Finished difference Result 286 states and 308 transitions. [2023-11-23 21:37:12,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:37:12,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 64 [2023-11-23 21:37:12,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:12,522 INFO L225 Difference]: With dead ends: 286 [2023-11-23 21:37:12,522 INFO L226 Difference]: Without dead ends: 284 [2023-11-23 21:37:12,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:37:12,523 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 215 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:12,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 280 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:37:12,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2023-11-23 21:37:12,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 196. [2023-11-23 21:37:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 159 states have (on average 1.2830188679245282) internal successors, (204), 179 states have internal predecessors, (204), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-23 21:37:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 234 transitions. [2023-11-23 21:37:12,559 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 234 transitions. Word has length 64 [2023-11-23 21:37:12,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:12,560 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 234 transitions. [2023-11-23 21:37:12,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-23 21:37:12,560 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 234 transitions. [2023-11-23 21:37:12,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-23 21:37:12,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:12,562 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:12,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:12,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-23 21:37:12,784 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:12,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash -906332907, now seen corresponding path program 1 times [2023-11-23 21:37:12,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:12,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690981699] [2023-11-23 21:37:12,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:12,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:12,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239048342] [2023-11-23 21:37:12,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:12,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:12,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:12,819 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:12,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 21:37:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:12,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:37:12,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:12,992 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 21:37:12,993 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 21:37:13,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:13,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690981699] [2023-11-23 21:37:13,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:13,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239048342] [2023-11-23 21:37:13,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239048342] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:13,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:13,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-23 21:37:13,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659846941] [2023-11-23 21:37:13,154 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:13,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:37:13,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:13,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:37:13,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:13,156 INFO L87 Difference]: Start difference. First operand 196 states and 234 transitions. Second operand has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 21:37:13,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:13,462 INFO L93 Difference]: Finished difference Result 278 states and 307 transitions. [2023-11-23 21:37:13,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:37:13,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 71 [2023-11-23 21:37:13,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:13,465 INFO L225 Difference]: With dead ends: 278 [2023-11-23 21:37:13,466 INFO L226 Difference]: Without dead ends: 273 [2023-11-23 21:37:13,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:37:13,467 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 194 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:13,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 215 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:37:13,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-23 21:37:13,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 195. [2023-11-23 21:37:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 161 states have (on average 1.2173913043478262) internal successors, (196), 177 states have internal predecessors, (196), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:37:13,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 228 transitions. [2023-11-23 21:37:13,486 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 228 transitions. Word has length 71 [2023-11-23 21:37:13,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:13,486 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 228 transitions. [2023-11-23 21:37:13,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.6) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 21:37:13,487 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 228 transitions. [2023-11-23 21:37:13,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 21:37:13,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:13,488 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:13,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:13,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:13,692 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:13,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:13,693 INFO L85 PathProgramCache]: Analyzing trace with hash 892439895, now seen corresponding path program 1 times [2023-11-23 21:37:13,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:13,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921352250] [2023-11-23 21:37:13,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:13,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:13,705 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:13,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1993286249] [2023-11-23 21:37:13,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:13,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:13,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:13,707 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:13,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 21:37:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:13,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:37:13,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:13,936 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 21:37:13,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 21:37:14,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:14,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921352250] [2023-11-23 21:37:14,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:14,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993286249] [2023-11-23 21:37:14,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993286249] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:14,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:14,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 21:37:14,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503037950] [2023-11-23 21:37:14,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:14,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:37:14,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:14,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:37:14,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:37:14,100 INFO L87 Difference]: Start difference. First operand 195 states and 228 transitions. Second operand has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 21:37:14,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:14,328 INFO L93 Difference]: Finished difference Result 227 states and 260 transitions. [2023-11-23 21:37:14,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:37:14,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 73 [2023-11-23 21:37:14,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:14,331 INFO L225 Difference]: With dead ends: 227 [2023-11-23 21:37:14,331 INFO L226 Difference]: Without dead ends: 218 [2023-11-23 21:37:14,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:37:14,332 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 143 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:14,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 167 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:37:14,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-11-23 21:37:14,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 188. [2023-11-23 21:37:14,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 161 states have (on average 1.1180124223602483) internal successors, (180), 170 states have internal predecessors, (180), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-23 21:37:14,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 212 transitions. [2023-11-23 21:37:14,352 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 212 transitions. Word has length 73 [2023-11-23 21:37:14,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:14,352 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 212 transitions. [2023-11-23 21:37:14,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-23 21:37:14,353 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 212 transitions. [2023-11-23 21:37:14,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-23 21:37:14,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:14,354 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:14,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:14,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 21:37:14,575 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:14,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:14,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1358717543, now seen corresponding path program 1 times [2023-11-23 21:37:14,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:14,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762680393] [2023-11-23 21:37:14,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:14,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:14,583 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:14,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139853654] [2023-11-23 21:37:14,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:14,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:14,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:14,585 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:14,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 21:37:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:14,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 21:37:14,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 21:37:14,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:14,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:14,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762680393] [2023-11-23 21:37:14,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:14,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139853654] [2023-11-23 21:37:14,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139853654] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:14,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:14,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:37:14,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580980114] [2023-11-23 21:37:14,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:14,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:37:14,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:14,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:37:14,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:14,886 INFO L87 Difference]: Start difference. First operand 188 states and 212 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 21:37:15,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:15,020 INFO L93 Difference]: Finished difference Result 188 states and 212 transitions. [2023-11-23 21:37:15,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:37:15,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 75 [2023-11-23 21:37:15,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:15,022 INFO L225 Difference]: With dead ends: 188 [2023-11-23 21:37:15,023 INFO L226 Difference]: Without dead ends: 158 [2023-11-23 21:37:15,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:37:15,025 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 73 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:15,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 107 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:15,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-23 21:37:15,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-11-23 21:37:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.0359712230215827) internal successors, (144), 142 states have internal predecessors, (144), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 21:37:15,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 172 transitions. [2023-11-23 21:37:15,044 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 172 transitions. Word has length 75 [2023-11-23 21:37:15,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:15,044 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 172 transitions. [2023-11-23 21:37:15,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-23 21:37:15,045 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 172 transitions. [2023-11-23 21:37:15,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-23 21:37:15,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:15,047 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-11-23 21:37:15,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:15,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 21:37:15,268 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:15,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:15,268 INFO L85 PathProgramCache]: Analyzing trace with hash 51405215, now seen corresponding path program 1 times [2023-11-23 21:37:15,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:15,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959627303] [2023-11-23 21:37:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:15,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:15,281 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:15,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340719798] [2023-11-23 21:37:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:15,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:15,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:15,283 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:15,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 21:37:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:37:15,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:37:15,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:15,783 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:37:15,784 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-23 21:37:16,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:16,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959627303] [2023-11-23 21:37:16,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:16,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340719798] [2023-11-23 21:37:16,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340719798] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:16,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:16,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-23 21:37:16,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727157493] [2023-11-23 21:37:16,104 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:16,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 21:37:16,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:16,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 21:37:16,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=108, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:37:16,107 INFO L87 Difference]: Start difference. First operand 158 states and 172 transitions. Second operand has 14 states, 13 states have (on average 14.384615384615385) internal successors, (187), 14 states have internal predecessors, (187), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-23 21:37:16,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:16,527 INFO L93 Difference]: Finished difference Result 250 states and 273 transitions. [2023-11-23 21:37:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 21:37:16,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.384615384615385) internal successors, (187), 14 states have internal predecessors, (187), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 138 [2023-11-23 21:37:16,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:16,530 INFO L225 Difference]: With dead ends: 250 [2023-11-23 21:37:16,530 INFO L226 Difference]: Without dead ends: 249 [2023-11-23 21:37:16,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=240, Unknown=0, NotChecked=0, Total=420 [2023-11-23 21:37:16,531 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 22 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:16,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 194 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:37:16,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-23 21:37:16,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 242. [2023-11-23 21:37:16,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 216 states have (on average 1.0509259259259258) internal successors, (227), 219 states have internal predecessors, (227), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:37:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 269 transitions. [2023-11-23 21:37:16,559 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 269 transitions. Word has length 138 [2023-11-23 21:37:16,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:16,559 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 269 transitions. [2023-11-23 21:37:16,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.384615384615385) internal successors, (187), 14 states have internal predecessors, (187), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-11-23 21:37:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 269 transitions. [2023-11-23 21:37:16,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-23 21:37:16,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:16,563 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-23 21:37:16,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:16,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:16,793 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:16,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:16,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1705604823, now seen corresponding path program 2 times [2023-11-23 21:37:16,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:16,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946387332] [2023-11-23 21:37:16,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:16,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:16,824 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:16,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1497148641] [2023-11-23 21:37:16,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:37:16,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:16,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:16,830 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:16,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 21:37:16,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 21:37:16,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:37:16,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:37:16,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:17,373 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:37:17,373 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:17,766 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-23 21:37:17,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:17,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946387332] [2023-11-23 21:37:17,767 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:17,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497148641] [2023-11-23 21:37:17,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497148641] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:17,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:17,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-23 21:37:17,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251232757] [2023-11-23 21:37:17,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:17,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 21:37:17,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:17,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 21:37:17,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:37:17,773 INFO L87 Difference]: Start difference. First operand 242 states and 269 transitions. Second operand has 16 states, 15 states have (on average 14.466666666666667) internal successors, (217), 16 states have internal predecessors, (217), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-23 21:37:18,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:18,253 INFO L93 Difference]: Finished difference Result 266 states and 291 transitions. [2023-11-23 21:37:18,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 21:37:18,254 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 14.466666666666667) internal successors, (217), 16 states have internal predecessors, (217), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 163 [2023-11-23 21:37:18,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:18,256 INFO L225 Difference]: With dead ends: 266 [2023-11-23 21:37:18,257 INFO L226 Difference]: Without dead ends: 265 [2023-11-23 21:37:18,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=353, Unknown=0, NotChecked=0, Total=600 [2023-11-23 21:37:18,258 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 82 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:18,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 243 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:37:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-11-23 21:37:18,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 259. [2023-11-23 21:37:18,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 231 states have (on average 1.0432900432900434) internal successors, (241), 234 states have internal predecessors, (241), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:37:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 287 transitions. [2023-11-23 21:37:18,282 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 287 transitions. Word has length 163 [2023-11-23 21:37:18,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:18,282 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 287 transitions. [2023-11-23 21:37:18,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 14.466666666666667) internal successors, (217), 16 states have internal predecessors, (217), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-23 21:37:18,283 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 287 transitions. [2023-11-23 21:37:18,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-11-23 21:37:18,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:18,287 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-23 21:37:18,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:18,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 21:37:18,509 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:18,510 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:18,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2110938291, now seen corresponding path program 2 times [2023-11-23 21:37:18,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:18,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832302510] [2023-11-23 21:37:18,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:18,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:18,531 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:18,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1187205973] [2023-11-23 21:37:18,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:37:18,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:18,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:18,533 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:18,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 21:37:18,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 21:37:18,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:37:18,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-23 21:37:18,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-23 21:37:19,405 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:19,932 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 0 proven. 246 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-23 21:37:19,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:19,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832302510] [2023-11-23 21:37:19,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:19,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187205973] [2023-11-23 21:37:19,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187205973] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:19,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:19,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 14 [2023-11-23 21:37:19,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296069241] [2023-11-23 21:37:19,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:19,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 21:37:19,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:19,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 21:37:19,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:37:19,937 INFO L87 Difference]: Start difference. First operand 259 states and 287 transitions. Second operand has 15 states, 14 states have (on average 19.214285714285715) internal successors, (269), 15 states have internal predecessors, (269), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-23 21:37:20,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:20,835 INFO L93 Difference]: Finished difference Result 364 states and 399 transitions. [2023-11-23 21:37:20,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 21:37:20,837 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 19.214285714285715) internal successors, (269), 15 states have internal predecessors, (269), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 199 [2023-11-23 21:37:20,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:20,840 INFO L225 Difference]: With dead ends: 364 [2023-11-23 21:37:20,840 INFO L226 Difference]: Without dead ends: 363 [2023-11-23 21:37:20,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=214, Unknown=0, NotChecked=0, Total=342 [2023-11-23 21:37:20,845 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 142 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:20,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 428 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:37:20,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2023-11-23 21:37:20,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 353. [2023-11-23 21:37:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 317 states have (on average 1.0441640378548895) internal successors, (331), 320 states have internal predecessors, (331), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-23 21:37:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 393 transitions. [2023-11-23 21:37:20,878 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 393 transitions. Word has length 199 [2023-11-23 21:37:20,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:20,879 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 393 transitions. [2023-11-23 21:37:20,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 19.214285714285715) internal successors, (269), 15 states have internal predecessors, (269), 10 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2023-11-23 21:37:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 393 transitions. [2023-11-23 21:37:20,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-23 21:37:20,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:20,883 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-23 21:37:20,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:21,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 21:37:21,101 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:21,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:21,101 INFO L85 PathProgramCache]: Analyzing trace with hash -834306159, now seen corresponding path program 2 times [2023-11-23 21:37:21,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:21,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725748366] [2023-11-23 21:37:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:21,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:21,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:21,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1779270468] [2023-11-23 21:37:21,131 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:37:21,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:21,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:21,133 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:21,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 21:37:21,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 21:37:21,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:37:21,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-23 21:37:21,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-23 21:37:21,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-23 21:37:22,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:22,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725748366] [2023-11-23 21:37:22,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:22,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779270468] [2023-11-23 21:37:22,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779270468] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:22,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:22,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 15 [2023-11-23 21:37:22,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847074783] [2023-11-23 21:37:22,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:22,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-23 21:37:22,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:22,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-23 21:37:22,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:37:22,427 INFO L87 Difference]: Start difference. First operand 353 states and 393 transitions. Second operand has 16 states, 15 states have (on average 18.2) internal successors, (273), 16 states have internal predecessors, (273), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-23 21:37:23,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:23,449 INFO L93 Difference]: Finished difference Result 362 states and 398 transitions. [2023-11-23 21:37:23,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 21:37:23,449 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.2) internal successors, (273), 16 states have internal predecessors, (273), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 206 [2023-11-23 21:37:23,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:23,457 INFO L225 Difference]: With dead ends: 362 [2023-11-23 21:37:23,457 INFO L226 Difference]: Without dead ends: 361 [2023-11-23 21:37:23,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=241, Unknown=0, NotChecked=0, Total=380 [2023-11-23 21:37:23,459 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 119 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:23,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 441 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:37:23,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-23 21:37:23,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 356. [2023-11-23 21:37:23,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 319 states have (on average 1.0282131661442007) internal successors, (328), 322 states have internal predecessors, (328), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 21:37:23,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 392 transitions. [2023-11-23 21:37:23,496 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 392 transitions. Word has length 206 [2023-11-23 21:37:23,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:23,499 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 392 transitions. [2023-11-23 21:37:23,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.2) internal successors, (273), 16 states have internal predecessors, (273), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2023-11-23 21:37:23,500 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 392 transitions. [2023-11-23 21:37:23,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-11-23 21:37:23,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:23,505 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1] [2023-11-23 21:37:23,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:23,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:23,712 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:23,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:23,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1889259167, now seen corresponding path program 2 times [2023-11-23 21:37:23,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:23,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959353135] [2023-11-23 21:37:23,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:23,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:23,749 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:23,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630264217] [2023-11-23 21:37:23,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:37:23,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:23,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:23,756 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:23,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 21:37:23,873 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 21:37:23,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:37:23,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:37:23,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:24,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2023-11-23 21:37:24,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1533 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2023-11-23 21:37:24,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:24,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959353135] [2023-11-23 21:37:24,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:24,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630264217] [2023-11-23 21:37:24,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630264217] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:37:24,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:37:24,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-23 21:37:24,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084203102] [2023-11-23 21:37:24,659 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:24,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:37:24,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:24,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:37:24,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:37:24,661 INFO L87 Difference]: Start difference. First operand 356 states and 392 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-23 21:37:24,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:24,785 INFO L93 Difference]: Finished difference Result 356 states and 392 transitions. [2023-11-23 21:37:24,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:37:24,786 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 318 [2023-11-23 21:37:24,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:24,790 INFO L225 Difference]: With dead ends: 356 [2023-11-23 21:37:24,790 INFO L226 Difference]: Without dead ends: 355 [2023-11-23 21:37:24,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:37:24,792 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 110 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:24,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 96 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:37:24,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-11-23 21:37:24,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2023-11-23 21:37:24,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 319 states have (on average 1.0156739811912225) internal successors, (324), 321 states have internal predecessors, (324), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 21:37:24,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 388 transitions. [2023-11-23 21:37:24,827 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 388 transitions. Word has length 318 [2023-11-23 21:37:24,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:24,828 INFO L495 AbstractCegarLoop]: Abstraction has 355 states and 388 transitions. [2023-11-23 21:37:24,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-23 21:37:24,829 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 388 transitions. [2023-11-23 21:37:24,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2023-11-23 21:37:24,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:24,835 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2023-11-23 21:37:24,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:25,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:25,056 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:25,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:25,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1122150871, now seen corresponding path program 3 times [2023-11-23 21:37:25,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:25,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180917508] [2023-11-23 21:37:25,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:25,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:25,083 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:25,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505454955] [2023-11-23 21:37:25,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:37:25,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:25,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:25,085 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:25,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 21:37:25,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 21:37:25,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:37:25,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 21:37:25,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 126 proven. 155 refuted. 0 times theorem prover too weak. 1543 trivial. 0 not checked. [2023-11-23 21:37:26,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:37:27,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:27,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180917508] [2023-11-23 21:37:27,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:27,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505454955] [2023-11-23 21:37:27,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505454955] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:37:27,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:37:27,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-23 21:37:27,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835377361] [2023-11-23 21:37:27,155 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 21:37:27,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:37:27,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:27,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:37:27,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:37:27,157 INFO L87 Difference]: Start difference. First operand 355 states and 388 transitions. Second operand has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-23 21:37:27,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:27,648 INFO L93 Difference]: Finished difference Result 355 states and 388 transitions. [2023-11-23 21:37:27,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:37:27,649 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 343 [2023-11-23 21:37:27,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:27,653 INFO L225 Difference]: With dead ends: 355 [2023-11-23 21:37:27,653 INFO L226 Difference]: Without dead ends: 354 [2023-11-23 21:37:27,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2023-11-23 21:37:27,655 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 146 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:27,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 53 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:37:27,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-23 21:37:27,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2023-11-23 21:37:27,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 319 states have (on average 1.006269592476489) internal successors, (321), 320 states have internal predecessors, (321), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 21:37:27,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 385 transitions. [2023-11-23 21:37:27,703 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 385 transitions. Word has length 343 [2023-11-23 21:37:27,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:27,704 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 385 transitions. [2023-11-23 21:37:27,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.777777777777778) internal successors, (61), 10 states have internal predecessors, (61), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-23 21:37:27,704 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 385 transitions. [2023-11-23 21:37:27,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2023-11-23 21:37:27,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:37:27,709 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-11-23 21:37:27,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:27,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:27,924 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2023-11-23 21:37:27,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:37:27,925 INFO L85 PathProgramCache]: Analyzing trace with hash 634951987, now seen corresponding path program 3 times [2023-11-23 21:37:27,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:37:27,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174273804] [2023-11-23 21:37:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:37:27,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:37:27,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:37:27,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299636943] [2023-11-23 21:37:27,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:37:27,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:27,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:37:27,960 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:37:27,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 21:37:55,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-23 21:37:55,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:37:55,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 21:37:55,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:37:55,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3465 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 3027 trivial. 0 not checked. [2023-11-23 21:37:55,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:37:55,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:37:55,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174273804] [2023-11-23 21:37:55,752 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:37:55,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299636943] [2023-11-23 21:37:55,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299636943] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:37:55,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:37:55,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:37:55,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567947081] [2023-11-23 21:37:55,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:37:55,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:37:55,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:37:55,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:37:55,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:37:55,754 INFO L87 Difference]: Start difference. First operand 354 states and 385 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-23 21:37:56,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:37:56,552 INFO L93 Difference]: Finished difference Result 354 states and 385 transitions. [2023-11-23 21:37:56,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:37:56,553 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 469 [2023-11-23 21:37:56,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:37:56,554 INFO L225 Difference]: With dead ends: 354 [2023-11-23 21:37:56,554 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:37:56,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 462 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:37:56,556 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 118 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:37:56,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 51 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:37:56,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:37:56,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:37:56,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:37:56,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:37:56,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 469 [2023-11-23 21:37:56,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:37:56,559 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:37:56,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-23 21:37:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:37:56,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:37:56,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2023-11-23 21:37:56,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2023-11-23 21:37:56,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2023-11-23 21:37:56,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2023-11-23 21:37:56,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2023-11-23 21:37:56,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2023-11-23 21:37:56,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2023-11-23 21:37:56,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2023-11-23 21:37:56,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2023-11-23 21:37:56,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2023-11-23 21:37:56,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2023-11-23 21:37:56,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2023-11-23 21:37:56,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2023-11-23 21:37:56,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2023-11-23 21:37:56,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2023-11-23 21:37:56,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2023-11-23 21:37:56,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2023-11-23 21:37:56,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2023-11-23 21:37:56,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2023-11-23 21:37:56,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2023-11-23 21:37:56,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2023-11-23 21:37:56,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2023-11-23 21:37:56,566 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2023-11-23 21:37:56,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2023-11-23 21:37:56,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 50 remaining) [2023-11-23 21:37:56,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 50 remaining) [2023-11-23 21:37:56,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2023-11-23 21:37:56,567 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2023-11-23 21:37:56,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2023-11-23 21:37:56,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2023-11-23 21:37:56,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2023-11-23 21:37:56,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2023-11-23 21:37:56,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2023-11-23 21:37:56,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2023-11-23 21:37:56,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2023-11-23 21:37:56,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2023-11-23 21:37:56,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2023-11-23 21:37:56,569 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2023-11-23 21:37:56,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2023-11-23 21:37:56,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2023-11-23 21:37:56,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2023-11-23 21:37:56,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2023-11-23 21:37:56,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2023-11-23 21:37:56,570 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2023-11-23 21:37:56,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2023-11-23 21:37:56,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2023-11-23 21:37:56,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2023-11-23 21:37:56,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2023-11-23 21:37:56,571 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2023-11-23 21:37:56,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2023-11-23 21:37:56,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 21:37:56,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:37:56,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:37:58,795 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-23 21:37:58,795 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,795 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-23 21:37:58,795 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-23 21:37:58,796 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,796 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,796 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-23 21:37:58,796 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-23 21:37:58,796 INFO L899 garLoopResultBuilder]: For program point L44-2(line 44) no Hoare annotation was computed. [2023-11-23 21:37:58,796 INFO L895 garLoopResultBuilder]: At program point L44-3(line 44) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~t~0#1| 1) (= |ULTIMATE.start_main_~a~0#1| 0) (= |ULTIMATE.start_main_~s~0#1| 1)) (and (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806) (<= |ULTIMATE.start_main_~s~0#1| 2305843009213693951))) [2023-11-23 21:37:58,796 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,796 INFO L899 garLoopResultBuilder]: For program point L44-4(line 44) no Hoare annotation was computed. [2023-11-23 21:37:58,796 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,797 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-23 21:37:58,797 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,797 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,797 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-23 21:37:58,797 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,797 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,797 INFO L899 garLoopResultBuilder]: For program point L45-2(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,797 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,797 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,797 INFO L899 garLoopResultBuilder]: For program point L45-3(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,798 INFO L899 garLoopResultBuilder]: For program point L45-4(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,798 INFO L895 garLoopResultBuilder]: At program point L45-5(line 45) the Hoare annotation is: (or (and (<= (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) 9223372036854775807) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= (+ (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) (* 2 |ULTIMATE.start_main_~a~0#1|)) 9223372036854775806) (<= |ULTIMATE.start_main_~s~0#1| 2305843009213693951)) (and (= |ULTIMATE.start_main_~t~0#1| 1) (= |ULTIMATE.start_main_~s~0#1| 1))) [2023-11-23 21:37:58,798 INFO L899 garLoopResultBuilder]: For program point L45-6(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,798 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-23 21:37:58,798 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,798 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,798 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-23 21:37:58,798 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,798 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,798 INFO L899 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point L46-2(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point L46-4(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point L46-5(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point L46-6(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point L46-7(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point L46-8(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point L46-9(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L899 garLoopResultBuilder]: For program point L46-10(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,799 INFO L902 garLoopResultBuilder]: At program point L46-11(line 46) the Hoare annotation is: true [2023-11-23 21:37:58,800 INFO L899 garLoopResultBuilder]: For program point L46-12(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,800 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,800 INFO L895 garLoopResultBuilder]: At program point L30-2(lines 30 42) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 50)) (.cse1 (<= 0 |ULTIMATE.start_main_~n~0#1|))) (or (and (= |ULTIMATE.start_main_~t~0#1| 1) .cse0 (= |ULTIMATE.start_main_~a~0#1| 0) .cse1 (= |ULTIMATE.start_main_~s~0#1| 1)) (let ((.cse2 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|))) (and (= (mod (+ .cse2 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= (div (+ .cse2 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 2305843009213693951) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) .cse0 (<= |ULTIMATE.start_main_~a~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~s~0#1| (+ |ULTIMATE.start_main_~t~0#1| 50)) .cse1)))) [2023-11-23 21:37:58,800 INFO L899 garLoopResultBuilder]: For program point L30-3(lines 30 42) no Hoare annotation was computed. [2023-11-23 21:37:58,800 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,800 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-23 21:37:58,800 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,800 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,800 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-11-23 21:37:58,801 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-11-23 21:37:58,801 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,801 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-11-23 21:37:58,801 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2023-11-23 21:37:58,801 INFO L899 garLoopResultBuilder]: For program point L31-2(line 31) no Hoare annotation was computed. [2023-11-23 21:37:58,801 INFO L899 garLoopResultBuilder]: For program point L31-3(line 31) no Hoare annotation was computed. [2023-11-23 21:37:58,801 INFO L895 garLoopResultBuilder]: At program point L31-4(line 31) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 50)) (.cse1 (<= 0 |ULTIMATE.start_main_~n~0#1|))) (or (and (= |ULTIMATE.start_main_~t~0#1| 1) .cse0 (= |ULTIMATE.start_main_~a~0#1| 0) .cse1 (= |ULTIMATE.start_main_~s~0#1| 1)) (let ((.cse2 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|))) (and (= (mod (+ .cse2 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= (div (+ .cse2 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 2305843009213693951) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) .cse0 (<= |ULTIMATE.start_main_~a~0#1| 4611686018427387903) (<= |ULTIMATE.start_main_~s~0#1| (+ |ULTIMATE.start_main_~t~0#1| 50)) .cse1)))) [2023-11-23 21:37:58,801 INFO L899 garLoopResultBuilder]: For program point L31-5(line 31) no Hoare annotation was computed. [2023-11-23 21:37:58,801 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,801 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-23 21:37:58,801 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,802 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,802 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-23 21:37:58,802 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-23 21:37:58,802 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,802 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,802 INFO L899 garLoopResultBuilder]: For program point L32-2(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,802 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,802 INFO L899 garLoopResultBuilder]: For program point L32-3(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,802 INFO L899 garLoopResultBuilder]: For program point L32-4(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,802 INFO L895 garLoopResultBuilder]: At program point L32-5(line 32) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 50)) (.cse1 (<= 0 |ULTIMATE.start_main_~n~0#1|))) (or (and (= |ULTIMATE.start_main_~t~0#1| 1) .cse0 (= |ULTIMATE.start_main_~a~0#1| 0) .cse1 (= |ULTIMATE.start_main_~s~0#1| 1)) (let ((.cse2 (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|))) (and (= (mod (+ .cse2 (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (<= (div (+ .cse2 (* (- 2) |ULTIMATE.start_main_~t~0#1|) 1) 4) 2305843009213693951) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) .cse0 (<= |ULTIMATE.start_main_~s~0#1| (+ 51 (* 2 |ULTIMATE.start_main_~a~0#1|))) (<= |ULTIMATE.start_main_~s~0#1| (+ |ULTIMATE.start_main_~t~0#1| 50)) .cse1 (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 2305843009213693951))))) [2023-11-23 21:37:58,802 INFO L899 garLoopResultBuilder]: For program point L32-6(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:37:58,803 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,805 INFO L899 garLoopResultBuilder]: For program point L33-2(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,805 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,806 INFO L899 garLoopResultBuilder]: For program point L33-3(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,806 INFO L899 garLoopResultBuilder]: For program point L33-4(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,806 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,806 INFO L899 garLoopResultBuilder]: For program point L33-5(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,806 INFO L899 garLoopResultBuilder]: For program point L33-6(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,806 INFO L899 garLoopResultBuilder]: For program point L33-7(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,807 INFO L899 garLoopResultBuilder]: For program point L33-8(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,807 INFO L899 garLoopResultBuilder]: For program point L33-9(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,807 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-23 21:37:58,807 INFO L899 garLoopResultBuilder]: For program point L33-10(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,808 INFO L895 garLoopResultBuilder]: At program point L33-11(line 33) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~n~0#1| 50)) (.cse1 (<= 0 |ULTIMATE.start_main_~n~0#1|))) (or (and (= |ULTIMATE.start_main_~t~0#1| 1) .cse0 (= |ULTIMATE.start_main_~a~0#1| 0) .cse1 (= |ULTIMATE.start_main_~s~0#1| 1)) (and (= (mod (+ (* |ULTIMATE.start_main_~t~0#1| |ULTIMATE.start_main_~t~0#1|) (* 2 |ULTIMATE.start_main_~t~0#1|) 1) 4) 0) (<= (+ |ULTIMATE.start_main_~t~0#1| 1) |ULTIMATE.start_main_~s~0#1|) (exists ((v_subst_2 Int)) (let ((.cse2 (* 2 v_subst_2))) (and (= (+ .cse2 (* v_subst_2 v_subst_2) 1) |ULTIMATE.start_main_~s~0#1|) (<= |ULTIMATE.start_main_~s~0#1| (+ 51 .cse2))))) (<= 3 |ULTIMATE.start_main_~t~0#1|) (<= 1 |ULTIMATE.start_main_~a~0#1|) .cse0 (<= |ULTIMATE.start_main_~s~0#1| (+ 51 (* 2 |ULTIMATE.start_main_~a~0#1|))) (<= |ULTIMATE.start_main_~s~0#1| (+ |ULTIMATE.start_main_~t~0#1| 50)) .cse1 (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|) 2305843009213693951)))) [2023-11-23 21:37:58,808 INFO L899 garLoopResultBuilder]: For program point L33-12(lines 30 42) no Hoare annotation was computed. [2023-11-23 21:37:58,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,808 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2023-11-23 21:37:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-23 21:37:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2023-11-23 21:37:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-23 21:37:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-23 21:37:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-23 21:37:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2023-11-23 21:37:58,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2023-11-23 21:37:58,810 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-11-23 21:37:58,810 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-11-23 21:37:58,810 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-11-23 21:37:58,810 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-11-23 21:37:58,813 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:37:58,816 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:37:58,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:37:58 BoogieIcfgContainer [2023-11-23 21:37:58,828 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:37:58,829 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:37:58,829 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:37:58,829 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:37:58,830 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:37:05" (3/4) ... [2023-11-23 21:37:58,832 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:37:58,835 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 21:37:58,841 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-23 21:37:58,841 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-23 21:37:58,842 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:37:58,842 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:37:58,938 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 21:37:58,938 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 21:37:58,938 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:37:58,939 INFO L158 Benchmark]: Toolchain (without parser) took 54410.83ms. Allocated memory was 136.3MB in the beginning and 237.0MB in the end (delta: 100.7MB). Free memory was 108.3MB in the beginning and 86.7MB in the end (delta: 21.6MB). Peak memory consumption was 123.9MB. Max. memory is 16.1GB. [2023-11-23 21:37:58,939 INFO L158 Benchmark]: CDTParser took 1.55ms. Allocated memory is still 102.8MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 151.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:37:58,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.93ms. Allocated memory is still 136.3MB. Free memory was 107.8MB in the beginning and 97.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:37:58,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.93ms. Allocated memory is still 136.3MB. Free memory was 97.4MB in the beginning and 95.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:37:58,941 INFO L158 Benchmark]: Boogie Preprocessor took 53.89ms. Allocated memory is still 136.3MB. Free memory was 95.8MB in the beginning and 93.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:37:58,941 INFO L158 Benchmark]: RCFGBuilder took 613.03ms. Allocated memory is still 136.3MB. Free memory was 93.7MB in the beginning and 75.9MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:37:58,942 INFO L158 Benchmark]: TraceAbstraction took 53304.57ms. Allocated memory was 136.3MB in the beginning and 237.0MB in the end (delta: 100.7MB). Free memory was 75.3MB in the beginning and 93.0MB in the end (delta: -17.7MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. [2023-11-23 21:37:58,942 INFO L158 Benchmark]: Witness Printer took 109.71ms. Allocated memory is still 237.0MB. Free memory was 93.0MB in the beginning and 86.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:37:58,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.55ms. Allocated memory is still 102.8MB. Free memory was 58.0MB in the beginning and 57.9MB in the end (delta: 151.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.93ms. Allocated memory is still 136.3MB. Free memory was 107.8MB in the beginning and 97.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.93ms. Allocated memory is still 136.3MB. Free memory was 97.4MB in the beginning and 95.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.89ms. Allocated memory is still 136.3MB. Free memory was 95.8MB in the beginning and 93.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 613.03ms. Allocated memory is still 136.3MB. Free memory was 93.7MB in the beginning and 75.9MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 53304.57ms. Allocated memory was 136.3MB in the beginning and 237.0MB in the end (delta: 100.7MB). Free memory was 75.3MB in the beginning and 93.0MB in the end (delta: -17.7MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. * Witness Printer took 109.71ms. Allocated memory is still 237.0MB. Free memory was 93.0MB in the beginning and 86.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 117 locations, 50 error locations. Started 1 CEGAR loops. OverallTime: 53.2s, OverallIterations: 22, TraceHistogramMax: 31, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2224 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2154 mSDsluCounter, 3973 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2538 mSDsCounter, 266 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4692 IncrementalHoareTripleChecker+Invalid, 4958 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 266 mSolverCounterUnsat, 1435 mSDtfsCounter, 4692 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3795 GetRequests, 3634 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=356occurred in iteration=19, InterpolantAutomatonStates: 152, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 22 MinimizatonAttempts, 405 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 50 PreInvPairs, 98 NumberOfFragments, 372 HoareAnnotationTreeSize, 50 FomulaSimplifications, 3070 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 8 FomulaSimplificationsInter, 3662 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 28.5s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 2470 NumberOfCodeBlocks, 1773 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 3722 ConstructedInterpolants, 4 QuantifiedInterpolants, 15515 SizeOfPredicates, 18 NumberOfNonLiveVariables, 3031 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 31 InterpolantComputations, 12 PerfectInterpolantSequences, 10521/12384 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 50 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((t == 1) && (n <= 50)) && (a == 0)) && (0 <= n)) && (s == 1)) || (((((((((((((t * t) + (2 * t)) + 1) % 4) == 0) && ((t + 1) <= s)) && (((((t * t) + (-2 * t)) + 1) / 4) <= 2305843009213693951)) && (3 <= t)) && (1 <= a)) && (n <= 50)) && (a <= 4611686018427387903)) && (s <= (t + 50))) && (0 <= n))) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:37:58,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b165c26-06eb-4201-8fb8-1221fef6fc6e/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE