./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 173419c809fa8cb7fa094fdfc7b5765802a9a2fdebfe9d0a53cd745fd0c573d2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:16:01,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:16:01,529 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:16:01,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:16:01,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:16:01,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:16:01,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:16:01,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:16:01,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:16:01,579 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:16:01,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:16:01,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:16:01,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:16:01,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:16:01,591 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:16:01,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:16:01,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:16:01,593 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:16:01,594 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:16:01,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:16:01,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:16:01,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:16:01,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:16:01,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:16:01,604 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:16:01,604 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:16:01,604 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:16:01,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:16:01,605 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:16:01,606 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:16:01,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:16:01,607 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:16:01,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:16:01,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:16:01,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:16:01,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:16:01,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:16:01,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:16:01,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:16:01,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:16:01,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:16:01,610 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:16:01,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:16:01,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:16:01,610 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_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 173419c809fa8cb7fa094fdfc7b5765802a9a2fdebfe9d0a53cd745fd0c573d2 [2023-11-29 04:16:01,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:16:01,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:16:01,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:16:01,908 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:16:01,909 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:16:01,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound5.c [2023-11-29 04:16:05,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:16:05,485 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:16:05,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound5.c [2023-11-29 04:16:05,493 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/data/06dd6ecd8/cce6bf4fe90348728f58ea36b3318703/FLAGe2fb303cf [2023-11-29 04:16:05,508 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/data/06dd6ecd8/cce6bf4fe90348728f58ea36b3318703 [2023-11-29 04:16:05,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:16:05,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:16:05,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:16:05,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:16:05,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:16:05,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2fb6f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05, skipping insertion in model container [2023-11-29 04:16:05,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,550 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:16:05,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:16:05,740 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:16:05,772 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:16:05,790 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:16:05,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05 WrapperNode [2023-11-29 04:16:05,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:16:05,793 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:16:05,793 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:16:05,793 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:16:05,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,810 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,848 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 195 [2023-11-29 04:16:05,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:16:05,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:16:05,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:16:05,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:16:05,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,876 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 04:16:05,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:16:05,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:16:05,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:16:05,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:16:05,900 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (1/1) ... [2023-11-29 04:16:05,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:16:05,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:05,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:16:05,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:16:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:16:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:16:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:16:05,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:16:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:16:05,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:16:06,075 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:16:06,078 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:16:06,886 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:16:06,924 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:16:06,924 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:16:06,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:16:06 BoogieIcfgContainer [2023-11-29 04:16:06,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:16:06,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:16:06,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:16:06,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:16:06,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:16:05" (1/3) ... [2023-11-29 04:16:06,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f6c4bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:16:06, skipping insertion in model container [2023-11-29 04:16:06,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:16:05" (2/3) ... [2023-11-29 04:16:06,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f6c4bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:16:06, skipping insertion in model container [2023-11-29 04:16:06,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:16:06" (3/3) ... [2023-11-29 04:16:06,937 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll_unwindbound5.c [2023-11-29 04:16:06,962 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:16:06,962 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 140 error locations. [2023-11-29 04:16:07,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:16:07,042 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;@5855c691, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:16:07,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 140 error locations. [2023-11-29 04:16:07,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 301 states, 148 states have (on average 1.972972972972973) internal successors, (292), 288 states have internal predecessors, (292), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-29 04:16:07,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-29 04:16:07,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:07,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-29 04:16:07,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:07,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:07,064 INFO L85 PathProgramCache]: Analyzing trace with hash 368288, now seen corresponding path program 1 times [2023-11-29 04:16:07,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:07,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323342712] [2023-11-29 04:16:07,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:07,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:07,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:16:07,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:07,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323342712] [2023-11-29 04:16:07,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323342712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:07,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:07,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:16:07,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990699229] [2023-11-29 04:16:07,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:07,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:07,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:07,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:07,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:07,370 INFO L87 Difference]: Start difference. First operand has 301 states, 148 states have (on average 1.972972972972973) internal successors, (292), 288 states have internal predecessors, (292), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:16:07,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:07,498 INFO L93 Difference]: Finished difference Result 598 states and 646 transitions. [2023-11-29 04:16:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:16:07,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-29 04:16:07,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:07,518 INFO L225 Difference]: With dead ends: 598 [2023-11-29 04:16:07,518 INFO L226 Difference]: Without dead ends: 295 [2023-11-29 04:16:07,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:16:07,528 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 4 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:07,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 895 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:16:07,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-11-29 04:16:07,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2023-11-29 04:16:07,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 151 states have (on average 1.8874172185430464) internal successors, (285), 283 states have internal predecessors, (285), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 04:16:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 305 transitions. [2023-11-29 04:16:07,599 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 305 transitions. Word has length 3 [2023-11-29 04:16:07,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:07,600 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 305 transitions. [2023-11-29 04:16:07,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:16:07,600 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 305 transitions. [2023-11-29 04:16:07,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 04:16:07,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:07,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 04:16:07,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:16:07,602 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:07,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:07,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1913193205, now seen corresponding path program 1 times [2023-11-29 04:16:07,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:07,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385578381] [2023-11-29 04:16:07,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:07,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:07,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:07,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:16:07,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:07,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385578381] [2023-11-29 04:16:07,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385578381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:07,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:07,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 04:16:07,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032458337] [2023-11-29 04:16:07,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:07,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:16:07,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:07,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:16:07,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:07,696 INFO L87 Difference]: Start difference. First operand 295 states and 305 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:16:07,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:07,897 INFO L93 Difference]: Finished difference Result 563 states and 583 transitions. [2023-11-29 04:16:07,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:07,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 04:16:07,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:07,903 INFO L225 Difference]: With dead ends: 563 [2023-11-29 04:16:07,904 INFO L226 Difference]: Without dead ends: 543 [2023-11-29 04:16:07,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:07,907 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 237 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:07,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 637 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:16:07,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-11-29 04:16:07,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 353. [2023-11-29 04:16:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 204 states have (on average 1.7941176470588236) internal successors, (366), 336 states have internal predecessors, (366), 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) [2023-11-29 04:16:07,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 396 transitions. [2023-11-29 04:16:07,950 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 396 transitions. Word has length 6 [2023-11-29 04:16:07,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:07,951 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 396 transitions. [2023-11-29 04:16:07,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:16:07,951 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 396 transitions. [2023-11-29 04:16:07,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 04:16:07,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:07,954 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] [2023-11-29 04:16:07,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 04:16:07,954 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:07,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:07,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1848326555, now seen corresponding path program 1 times [2023-11-29 04:16:07,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:07,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114846498] [2023-11-29 04:16:07,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:07,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:07,980 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:07,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140358214] [2023-11-29 04:16:07,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:07,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:07,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:07,986 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:07,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:16:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:08,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:16:08,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:16:08,299 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:08,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:08,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114846498] [2023-11-29 04:16:08,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:08,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140358214] [2023-11-29 04:16:08,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140358214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:08,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:08,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:16:08,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481576306] [2023-11-29 04:16:08,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:08,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:16:08,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:08,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:16:08,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:08,304 INFO L87 Difference]: Start difference. First operand 353 states and 396 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-29 04:16:10,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:10,073 INFO L93 Difference]: Finished difference Result 551 states and 571 transitions. [2023-11-29 04:16:10,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:10,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 39 [2023-11-29 04:16:10,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:10,078 INFO L225 Difference]: With dead ends: 551 [2023-11-29 04:16:10,079 INFO L226 Difference]: Without dead ends: 521 [2023-11-29 04:16:10,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:10,081 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 197 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:10,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 325 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:16:10,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-11-29 04:16:10,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 436. [2023-11-29 04:16:10,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 282 states have (on average 1.7375886524822695) internal successors, (490), 414 states have internal predecessors, (490), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:16:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 530 transitions. [2023-11-29 04:16:10,111 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 530 transitions. Word has length 39 [2023-11-29 04:16:10,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:10,111 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 530 transitions. [2023-11-29 04:16:10,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-29 04:16:10,112 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 530 transitions. [2023-11-29 04:16:10,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 04:16:10,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:10,114 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] [2023-11-29 04:16:10,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:16:10,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:10,321 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:10,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:10,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1463548268, now seen corresponding path program 1 times [2023-11-29 04:16:10,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:10,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869130414] [2023-11-29 04:16:10,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:10,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:10,340 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:10,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458982603] [2023-11-29 04:16:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:10,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:10,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:10,342 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:10,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:16:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:10,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:16:10,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:10,570 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:16:10,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:10,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:10,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869130414] [2023-11-29 04:16:10,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:10,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458982603] [2023-11-29 04:16:10,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458982603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:10,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:10,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:16:10,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298717021] [2023-11-29 04:16:10,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:10,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:16:10,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:10,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:16:10,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:10,574 INFO L87 Difference]: Start difference. First operand 436 states and 530 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-29 04:16:11,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:11,625 INFO L93 Difference]: Finished difference Result 521 states and 541 transitions. [2023-11-29 04:16:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:11,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 40 [2023-11-29 04:16:11,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:11,629 INFO L225 Difference]: With dead ends: 521 [2023-11-29 04:16:11,630 INFO L226 Difference]: Without dead ends: 512 [2023-11-29 04:16:11,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:11,631 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 187 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:11,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 317 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:16:11,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-29 04:16:11,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 438. [2023-11-29 04:16:11,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 416 states have internal predecessors, (485), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:16:11,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 525 transitions. [2023-11-29 04:16:11,654 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 525 transitions. Word has length 40 [2023-11-29 04:16:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:11,655 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 525 transitions. [2023-11-29 04:16:11,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-29 04:16:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 525 transitions. [2023-11-29 04:16:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 04:16:11,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:11,657 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] [2023-11-29 04:16:11,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:16:11,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:11,863 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:11,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1874644039, now seen corresponding path program 1 times [2023-11-29 04:16:11,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:11,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42677966] [2023-11-29 04:16:11,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:11,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:11,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:11,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1989958805] [2023-11-29 04:16:11,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:11,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:11,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:11,881 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:11,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:16:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:11,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:16:11,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:16:11,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:11,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:11,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42677966] [2023-11-29 04:16:11,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:11,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989958805] [2023-11-29 04:16:11,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989958805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:11,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:11,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:16:11,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894658592] [2023-11-29 04:16:11,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:11,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:16:11,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:11,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:16:11,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:11,986 INFO L87 Difference]: Start difference. First operand 438 states and 525 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-29 04:16:12,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:12,928 INFO L93 Difference]: Finished difference Result 507 states and 532 transitions. [2023-11-29 04:16:12,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:12,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 41 [2023-11-29 04:16:12,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:12,932 INFO L225 Difference]: With dead ends: 507 [2023-11-29 04:16:12,932 INFO L226 Difference]: Without dead ends: 502 [2023-11-29 04:16:12,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:12,934 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 176 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:12,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 513 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:16:12,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2023-11-29 04:16:12,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 438. [2023-11-29 04:16:12,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 284 states have (on average 1.6901408450704225) internal successors, (480), 416 states have internal predecessors, (480), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:16:12,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 520 transitions. [2023-11-29 04:16:12,955 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 520 transitions. Word has length 41 [2023-11-29 04:16:12,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:12,956 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 520 transitions. [2023-11-29 04:16:12,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-29 04:16:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 520 transitions. [2023-11-29 04:16:12,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 04:16:12,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:12,958 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] [2023-11-29 04:16:12,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:16:13,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:13,159 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:13,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:13,159 INFO L85 PathProgramCache]: Analyzing trace with hash -2015576842, now seen corresponding path program 1 times [2023-11-29 04:16:13,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:13,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242892012] [2023-11-29 04:16:13,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:13,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:13,175 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:13,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1783961120] [2023-11-29 04:16:13,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:13,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:13,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:13,177 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:13,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:16:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:13,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:16:13,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:13,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:16:13,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:13,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:13,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242892012] [2023-11-29 04:16:13,284 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:13,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783961120] [2023-11-29 04:16:13,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783961120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:13,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:13,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:16:13,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32188936] [2023-11-29 04:16:13,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:13,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:16:13,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:13,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:16:13,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:13,287 INFO L87 Difference]: Start difference. First operand 438 states and 520 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-11-29 04:16:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:14,083 INFO L93 Difference]: Finished difference Result 507 states and 527 transitions. [2023-11-29 04:16:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:14,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2023-11-29 04:16:14,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:14,088 INFO L225 Difference]: With dead ends: 507 [2023-11-29 04:16:14,088 INFO L226 Difference]: Without dead ends: 502 [2023-11-29 04:16:14,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:14,090 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 173 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:14,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 508 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:16:14,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2023-11-29 04:16:14,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 438. [2023-11-29 04:16:14,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 284 states have (on average 1.6725352112676057) internal successors, (475), 416 states have internal predecessors, (475), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:16:14,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 515 transitions. [2023-11-29 04:16:14,111 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 515 transitions. Word has length 42 [2023-11-29 04:16:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:14,111 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 515 transitions. [2023-11-29 04:16:14,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2023-11-29 04:16:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 515 transitions. [2023-11-29 04:16:14,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 04:16:14,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:14,113 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] [2023-11-29 04:16:14,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 04:16:14,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:14,315 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:14,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:14,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1941627433, now seen corresponding path program 1 times [2023-11-29 04:16:14,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:14,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97714030] [2023-11-29 04:16:14,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:14,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:14,325 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:14,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606956621] [2023-11-29 04:16:14,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:14,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:14,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:14,327 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:14,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:16:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:14,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:16:14,371 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:14,429 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:16:14,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:14,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:14,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97714030] [2023-11-29 04:16:14,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:14,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606956621] [2023-11-29 04:16:14,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606956621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:14,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:14,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:14,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070321955] [2023-11-29 04:16:14,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:14,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:14,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:14,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:14,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:14,432 INFO L87 Difference]: Start difference. First operand 438 states and 515 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-29 04:16:15,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:15,354 INFO L93 Difference]: Finished difference Result 502 states and 522 transitions. [2023-11-29 04:16:15,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:16:15,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2023-11-29 04:16:15,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:15,357 INFO L225 Difference]: With dead ends: 502 [2023-11-29 04:16:15,357 INFO L226 Difference]: Without dead ends: 500 [2023-11-29 04:16:15,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:15,359 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 362 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:15,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 444 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:16:15,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-11-29 04:16:15,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 438. [2023-11-29 04:16:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 284 states have (on average 1.6654929577464788) internal successors, (473), 416 states have internal predecessors, (473), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:16:15,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 513 transitions. [2023-11-29 04:16:15,375 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 513 transitions. Word has length 43 [2023-11-29 04:16:15,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:15,376 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 513 transitions. [2023-11-29 04:16:15,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-11-29 04:16:15,376 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 513 transitions. [2023-11-29 04:16:15,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 04:16:15,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:15,378 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] [2023-11-29 04:16:15,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:16:15,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:15,581 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:15,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:15,582 INFO L85 PathProgramCache]: Analyzing trace with hash 60908376, now seen corresponding path program 1 times [2023-11-29 04:16:15,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:15,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658193793] [2023-11-29 04:16:15,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:15,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:15,596 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:15,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [387385284] [2023-11-29 04:16:15,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:15,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:15,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:15,598 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:15,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:16:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:15,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:16:15,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:15,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:16:15,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:15,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:15,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658193793] [2023-11-29 04:16:15,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:15,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387385284] [2023-11-29 04:16:15,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387385284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:15,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:15,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:15,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374703950] [2023-11-29 04:16:15,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:15,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:15,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:15,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:15,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:15,721 INFO L87 Difference]: Start difference. First operand 438 states and 513 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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) [2023-11-29 04:16:18,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:18,656 INFO L93 Difference]: Finished difference Result 500 states and 520 transitions. [2023-11-29 04:16:18,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:16:18,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 44 [2023-11-29 04:16:18,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:18,660 INFO L225 Difference]: With dead ends: 500 [2023-11-29 04:16:18,660 INFO L226 Difference]: Without dead ends: 498 [2023-11-29 04:16:18,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:18,661 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 190 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:18,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 494 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 04:16:18,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2023-11-29 04:16:18,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 438. [2023-11-29 04:16:18,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 284 states have (on average 1.658450704225352) internal successors, (471), 416 states have internal predecessors, (471), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:16:18,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 511 transitions. [2023-11-29 04:16:18,676 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 511 transitions. Word has length 44 [2023-11-29 04:16:18,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:18,677 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 511 transitions. [2023-11-29 04:16:18,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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) [2023-11-29 04:16:18,677 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 511 transitions. [2023-11-29 04:16:18,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 04:16:18,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:18,678 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] [2023-11-29 04:16:18,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:16:18,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:18,879 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:18,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:18,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2045328877, now seen corresponding path program 1 times [2023-11-29 04:16:18,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:18,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059618824] [2023-11-29 04:16:18,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:18,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:18,893 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:18,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144886430] [2023-11-29 04:16:18,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:18,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:18,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:18,895 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:18,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:16:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:18,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:16:18,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:16:19,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:19,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:19,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059618824] [2023-11-29 04:16:19,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:19,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144886430] [2023-11-29 04:16:19,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144886430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:19,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:19,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:16:19,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957354603] [2023-11-29 04:16:19,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:19,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:16:19,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:19,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:16:19,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:19,209 INFO L87 Difference]: Start difference. First operand 438 states and 511 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 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) [2023-11-29 04:16:20,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:20,142 INFO L93 Difference]: Finished difference Result 498 states and 518 transitions. [2023-11-29 04:16:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:20,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 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 [2023-11-29 04:16:20,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:20,145 INFO L225 Difference]: With dead ends: 498 [2023-11-29 04:16:20,145 INFO L226 Difference]: Without dead ends: 484 [2023-11-29 04:16:20,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:20,146 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 150 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:20,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 305 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 04:16:20,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-11-29 04:16:20,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 441. [2023-11-29 04:16:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 287 states have (on average 1.613240418118467) internal successors, (463), 419 states have internal predecessors, (463), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:16:20,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 503 transitions. [2023-11-29 04:16:20,162 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 503 transitions. Word has length 47 [2023-11-29 04:16:20,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:20,162 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 503 transitions. [2023-11-29 04:16:20,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 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) [2023-11-29 04:16:20,163 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 503 transitions. [2023-11-29 04:16:20,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-29 04:16:20,164 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:20,164 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] [2023-11-29 04:16:20,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:16:20,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:20,365 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:20,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1019314148, now seen corresponding path program 1 times [2023-11-29 04:16:20,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:20,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763495221] [2023-11-29 04:16:20,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:20,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:20,379 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:20,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1675618312] [2023-11-29 04:16:20,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:20,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:20,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:20,381 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:20,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:16:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:20,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:16:20,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:21,161 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:16:21,161 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:21,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:21,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763495221] [2023-11-29 04:16:21,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:21,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675618312] [2023-11-29 04:16:21,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675618312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:21,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:21,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:21,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2658148] [2023-11-29 04:16:21,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:21,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:21,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:21,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:21,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:21,164 INFO L87 Difference]: Start difference. First operand 441 states and 503 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) [2023-11-29 04:16:23,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:23,184 INFO L93 Difference]: Finished difference Result 484 states and 504 transitions. [2023-11-29 04:16:23,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:23,185 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 [2023-11-29 04:16:23,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:23,187 INFO L225 Difference]: With dead ends: 484 [2023-11-29 04:16:23,187 INFO L226 Difference]: Without dead ends: 481 [2023-11-29 04:16:23,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:23,188 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 170 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:23,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 465 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:16:23,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-29 04:16:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 441. [2023-11-29 04:16:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 287 states have (on average 1.602787456445993) internal successors, (460), 419 states have internal predecessors, (460), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 04:16:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 500 transitions. [2023-11-29 04:16:23,204 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 500 transitions. Word has length 48 [2023-11-29 04:16:23,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:23,204 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 500 transitions. [2023-11-29 04:16:23,204 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) [2023-11-29 04:16:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 500 transitions. [2023-11-29 04:16:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 04:16:23,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:23,206 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, 1, 1, 1, 1] [2023-11-29 04:16:23,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:16:23,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:23,411 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:23,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:23,411 INFO L85 PathProgramCache]: Analyzing trace with hash 29056224, now seen corresponding path program 1 times [2023-11-29 04:16:23,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:23,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998355087] [2023-11-29 04:16:23,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:23,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:23,421 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:23,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2007715694] [2023-11-29 04:16:23,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:23,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:23,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:23,423 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:23,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:16:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:23,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:16:23,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:23,775 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 04:16:23,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:23,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:23,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998355087] [2023-11-29 04:16:23,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:23,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007715694] [2023-11-29 04:16:23,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007715694] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:23,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:23,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:23,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285783747] [2023-11-29 04:16:23,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:23,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:23,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:23,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:23,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:23,778 INFO L87 Difference]: Start difference. First operand 441 states and 500 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:16:24,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:24,857 INFO L93 Difference]: Finished difference Result 481 states and 501 transitions. [2023-11-29 04:16:24,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:24,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2023-11-29 04:16:24,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:24,860 INFO L225 Difference]: With dead ends: 481 [2023-11-29 04:16:24,860 INFO L226 Difference]: Without dead ends: 460 [2023-11-29 04:16:24,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:24,861 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 301 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:24,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 353 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:16:24,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-11-29 04:16:24,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 425. [2023-11-29 04:16:24,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 272 states have (on average 1.6213235294117647) internal successors, (441), 404 states have internal predecessors, (441), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 04:16:24,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 479 transitions. [2023-11-29 04:16:24,881 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 479 transitions. Word has length 52 [2023-11-29 04:16:24,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:24,881 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 479 transitions. [2023-11-29 04:16:24,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 04:16:24,881 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 479 transitions. [2023-11-29 04:16:24,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 04:16:24,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:24,883 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:24,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:16:25,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 04:16:25,084 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:25,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1808674979, now seen corresponding path program 1 times [2023-11-29 04:16:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:25,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739006173] [2023-11-29 04:16:25,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:25,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:25,096 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:25,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031001853] [2023-11-29 04:16:25,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:25,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:25,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:25,097 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:25,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:16:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:25,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:16:25,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:16:25,220 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:25,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:25,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739006173] [2023-11-29 04:16:25,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:25,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031001853] [2023-11-29 04:16:25,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031001853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:25,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:25,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:16:25,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746675088] [2023-11-29 04:16:25,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:25,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:16:25,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:25,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:16:25,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:25,223 INFO L87 Difference]: Start difference. First operand 425 states and 479 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:16:26,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:26,666 INFO L93 Difference]: Finished difference Result 464 states and 483 transitions. [2023-11-29 04:16:26,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:26,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 61 [2023-11-29 04:16:26,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:26,670 INFO L225 Difference]: With dead ends: 464 [2023-11-29 04:16:26,670 INFO L226 Difference]: Without dead ends: 458 [2023-11-29 04:16:26,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:26,671 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 118 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:26,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 399 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:16:26,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-11-29 04:16:26,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 427. [2023-11-29 04:16:26,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 274 states have (on average 1.602189781021898) internal successors, (439), 406 states have internal predecessors, (439), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 04:16:26,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 477 transitions. [2023-11-29 04:16:26,689 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 477 transitions. Word has length 61 [2023-11-29 04:16:26,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:26,690 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 477 transitions. [2023-11-29 04:16:26,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:16:26,690 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 477 transitions. [2023-11-29 04:16:26,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 04:16:26,691 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:26,691 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:26,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 04:16:26,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:26,892 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:26,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:26,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2114658273, now seen corresponding path program 1 times [2023-11-29 04:16:26,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:26,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822611336] [2023-11-29 04:16:26,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:26,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:26,904 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:26,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [329181346] [2023-11-29 04:16:26,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:26,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:26,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:26,905 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:26,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 04:16:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:26,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:16:26,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:27,041 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:16:27,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:27,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:27,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822611336] [2023-11-29 04:16:27,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:27,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329181346] [2023-11-29 04:16:27,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329181346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:27,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:27,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:27,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990863654] [2023-11-29 04:16:27,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:27,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:27,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:27,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:27,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:27,044 INFO L87 Difference]: Start difference. First operand 427 states and 477 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:16:27,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:27,648 INFO L93 Difference]: Finished difference Result 458 states and 477 transitions. [2023-11-29 04:16:27,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:16:27,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 65 [2023-11-29 04:16:27,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:27,651 INFO L225 Difference]: With dead ends: 458 [2023-11-29 04:16:27,651 INFO L226 Difference]: Without dead ends: 456 [2023-11-29 04:16:27,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:27,652 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 149 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:27,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 525 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:16:27,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-29 04:16:27,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 427. [2023-11-29 04:16:27,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 274 states have (on average 1.594890510948905) internal successors, (437), 406 states have internal predecessors, (437), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 04:16:27,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 475 transitions. [2023-11-29 04:16:27,665 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 475 transitions. Word has length 65 [2023-11-29 04:16:27,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:27,665 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 475 transitions. [2023-11-29 04:16:27,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:16:27,665 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 475 transitions. [2023-11-29 04:16:27,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-29 04:16:27,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:27,666 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:27,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 04:16:27,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 04:16:27,867 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:27,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:27,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1107578981, now seen corresponding path program 1 times [2023-11-29 04:16:27,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:27,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612909561] [2023-11-29 04:16:27,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:27,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:27,878 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:27,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411360525] [2023-11-29 04:16:27,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:27,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:27,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:27,879 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:27,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 04:16:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:27,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:16:27,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:28,153 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-29 04:16:28,153 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:28,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:28,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612909561] [2023-11-29 04:16:28,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:28,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411360525] [2023-11-29 04:16:28,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411360525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:28,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:28,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:28,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865609989] [2023-11-29 04:16:28,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:28,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:28,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:28,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:28,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:28,156 INFO L87 Difference]: Start difference. First operand 427 states and 475 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:16:33,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:16:34,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:16:37,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:16:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:42,211 INFO L93 Difference]: Finished difference Result 540 states and 597 transitions. [2023-11-29 04:16:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:16:42,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2023-11-29 04:16:42,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:42,215 INFO L225 Difference]: With dead ends: 540 [2023-11-29 04:16:42,215 INFO L226 Difference]: Without dead ends: 497 [2023-11-29 04:16:42,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:42,216 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 410 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:42,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 234 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2023-11-29 04:16:42,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-11-29 04:16:42,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 447. [2023-11-29 04:16:42,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 318 states have (on average 1.5660377358490567) internal successors, (498), 423 states have internal predecessors, (498), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:16:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 542 transitions. [2023-11-29 04:16:42,238 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 542 transitions. Word has length 69 [2023-11-29 04:16:42,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:42,238 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 542 transitions. [2023-11-29 04:16:42,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 04:16:42,239 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 542 transitions. [2023-11-29 04:16:42,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 04:16:42,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:42,240 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:42,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-29 04:16:42,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 04:16:42,441 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:42,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:42,441 INFO L85 PathProgramCache]: Analyzing trace with hash -760428695, now seen corresponding path program 1 times [2023-11-29 04:16:42,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:42,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239667208] [2023-11-29 04:16:42,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:42,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:42,453 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:42,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699098689] [2023-11-29 04:16:42,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:42,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:42,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:42,454 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:42,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 04:16:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:42,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:16:42,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 04:16:42,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:42,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:42,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239667208] [2023-11-29 04:16:42,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:42,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699098689] [2023-11-29 04:16:42,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699098689] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:42,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:42,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:16:42,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609937550] [2023-11-29 04:16:42,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:42,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:16:42,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:42,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:16:42,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:42,661 INFO L87 Difference]: Start difference. First operand 447 states and 542 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-29 04:16:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:43,135 INFO L93 Difference]: Finished difference Result 447 states and 542 transitions. [2023-11-29 04:16:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:43,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 87 [2023-11-29 04:16:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:43,140 INFO L225 Difference]: With dead ends: 447 [2023-11-29 04:16:43,140 INFO L226 Difference]: Without dead ends: 445 [2023-11-29 04:16:43,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:43,141 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 193 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:43,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 244 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 04:16:43,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-11-29 04:16:43,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2023-11-29 04:16:43,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 318 states have (on average 1.5471698113207548) internal successors, (492), 421 states have internal predecessors, (492), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:16:43,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 536 transitions. [2023-11-29 04:16:43,161 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 536 transitions. Word has length 87 [2023-11-29 04:16:43,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:43,161 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 536 transitions. [2023-11-29 04:16:43,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-29 04:16:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 536 transitions. [2023-11-29 04:16:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 04:16:43,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:43,163 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:43,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 04:16:43,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 04:16:43,363 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:43,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:43,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2098452885, now seen corresponding path program 1 times [2023-11-29 04:16:43,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:43,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626654004] [2023-11-29 04:16:43,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:43,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:43,377 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:43,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424720339] [2023-11-29 04:16:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:43,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:43,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:43,379 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:43,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 04:16:43,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:43,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:16:43,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:43,525 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 04:16:43,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:43,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:43,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626654004] [2023-11-29 04:16:43,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:43,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424720339] [2023-11-29 04:16:43,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424720339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:43,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:43,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:43,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110914397] [2023-11-29 04:16:43,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:43,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:43,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:43,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:43,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:43,527 INFO L87 Difference]: Start difference. First operand 445 states and 536 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-29 04:16:43,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:43,950 INFO L93 Difference]: Finished difference Result 468 states and 536 transitions. [2023-11-29 04:16:43,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:16:43,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 88 [2023-11-29 04:16:43,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:43,954 INFO L225 Difference]: With dead ends: 468 [2023-11-29 04:16:43,955 INFO L226 Difference]: Without dead ends: 466 [2023-11-29 04:16:43,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:16:43,956 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 150 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:43,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 647 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 04:16:43,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-29 04:16:43,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 445. [2023-11-29 04:16:43,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 318 states have (on average 1.5408805031446542) internal successors, (490), 421 states have internal predecessors, (490), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:16:43,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 534 transitions. [2023-11-29 04:16:43,972 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 534 transitions. Word has length 88 [2023-11-29 04:16:43,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:43,973 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 534 transitions. [2023-11-29 04:16:43,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-29 04:16:43,973 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 534 transitions. [2023-11-29 04:16:43,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 04:16:43,974 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:43,975 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:43,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 04:16:44,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 04:16:44,175 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:44,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:44,176 INFO L85 PathProgramCache]: Analyzing trace with hash -969912028, now seen corresponding path program 1 times [2023-11-29 04:16:44,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:44,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269262848] [2023-11-29 04:16:44,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:44,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:44,188 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:44,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1187238578] [2023-11-29 04:16:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:44,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:44,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:44,189 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:44,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 04:16:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:44,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:16:44,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:44,382 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:16:44,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:44,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:44,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269262848] [2023-11-29 04:16:44,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:44,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187238578] [2023-11-29 04:16:44,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187238578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:44,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:44,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:16:44,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717040668] [2023-11-29 04:16:44,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:44,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:16:44,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:44,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:16:44,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:16:44,385 INFO L87 Difference]: Start difference. First operand 445 states and 534 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 04:16:44,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:44,463 INFO L93 Difference]: Finished difference Result 445 states and 534 transitions. [2023-11-29 04:16:44,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:16:44,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 87 [2023-11-29 04:16:44,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:44,468 INFO L225 Difference]: With dead ends: 445 [2023-11-29 04:16:44,468 INFO L226 Difference]: Without dead ends: 444 [2023-11-29 04:16:44,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:16:44,469 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 395 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:44,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 528 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:16:44,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-11-29 04:16:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2023-11-29 04:16:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 318 states have (on average 1.5377358490566038) internal successors, (489), 420 states have internal predecessors, (489), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:16:44,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 533 transitions. [2023-11-29 04:16:44,492 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 533 transitions. Word has length 87 [2023-11-29 04:16:44,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:44,493 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 533 transitions. [2023-11-29 04:16:44,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 04:16:44,493 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 533 transitions. [2023-11-29 04:16:44,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 04:16:44,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:44,495 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:44,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 04:16:44,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 04:16:44,695 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:44,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:44,696 INFO L85 PathProgramCache]: Analyzing trace with hash -627529813, now seen corresponding path program 1 times [2023-11-29 04:16:44,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:44,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073385757] [2023-11-29 04:16:44,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:44,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:44,721 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:44,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2052957467] [2023-11-29 04:16:44,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:44,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:44,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:44,724 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:44,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 04:16:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:44,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:16:44,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:44,893 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 04:16:44,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:44,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:44,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073385757] [2023-11-29 04:16:44,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:44,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052957467] [2023-11-29 04:16:44,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052957467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:44,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:44,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:16:44,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128201369] [2023-11-29 04:16:44,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:44,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:16:44,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:44,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:16:44,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:44,896 INFO L87 Difference]: Start difference. First operand 444 states and 533 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-29 04:16:45,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:45,715 INFO L93 Difference]: Finished difference Result 465 states and 533 transitions. [2023-11-29 04:16:45,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:45,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 89 [2023-11-29 04:16:45,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:45,717 INFO L225 Difference]: With dead ends: 465 [2023-11-29 04:16:45,717 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 04:16:45,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:16:45,718 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 66 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:45,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 418 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:16:45,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 04:16:45,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 444. [2023-11-29 04:16:45,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 318 states have (on average 1.5125786163522013) internal successors, (481), 420 states have internal predecessors, (481), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 04:16:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 525 transitions. [2023-11-29 04:16:45,735 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 525 transitions. Word has length 89 [2023-11-29 04:16:45,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:45,736 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 525 transitions. [2023-11-29 04:16:45,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-29 04:16:45,736 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 525 transitions. [2023-11-29 04:16:45,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 04:16:45,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:45,738 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:45,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 04:16:45,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 04:16:45,943 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:45,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:45,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2501755, now seen corresponding path program 1 times [2023-11-29 04:16:45,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:45,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823953228] [2023-11-29 04:16:45,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:45,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:45,954 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:45,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1573128749] [2023-11-29 04:16:45,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:45,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:45,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:45,956 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:45,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 04:16:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:46,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:16:46,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:16:46,165 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:16:46,308 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:16:46,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:46,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823953228] [2023-11-29 04:16:46,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:46,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573128749] [2023-11-29 04:16:46,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573128749] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:16:46,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:16:46,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 04:16:46,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915251632] [2023-11-29 04:16:46,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:16:46,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:16:46,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:46,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:16:46,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:16:46,311 INFO L87 Difference]: Start difference. First operand 444 states and 525 transitions. Second operand has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 04:16:46,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:46,577 INFO L93 Difference]: Finished difference Result 1202 states and 1344 transitions. [2023-11-29 04:16:46,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 04:16:46,578 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2023-11-29 04:16:46,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:46,584 INFO L225 Difference]: With dead ends: 1202 [2023-11-29 04:16:46,584 INFO L226 Difference]: Without dead ends: 1043 [2023-11-29 04:16:46,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:16:46,586 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 607 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:46,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 2234 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:16:46,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2023-11-29 04:16:46,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 797. [2023-11-29 04:16:46,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 644 states have (on average 1.6040372670807452) internal successors, (1033), 748 states have internal predecessors, (1033), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:16:46,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1125 transitions. [2023-11-29 04:16:46,635 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1125 transitions. Word has length 88 [2023-11-29 04:16:46,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:46,635 INFO L495 AbstractCegarLoop]: Abstraction has 797 states and 1125 transitions. [2023-11-29 04:16:46,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 04:16:46,636 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1125 transitions. [2023-11-29 04:16:46,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 04:16:46,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:46,637 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:46,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 04:16:46,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:46,837 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:46,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:46,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1890782215, now seen corresponding path program 1 times [2023-11-29 04:16:46,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:46,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199593667] [2023-11-29 04:16:46,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:46,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:46,849 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:46,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274851905] [2023-11-29 04:16:46,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:46,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:46,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:46,850 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:46,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 04:16:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:46,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:16:46,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:47,025 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:16:47,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:47,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:47,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199593667] [2023-11-29 04:16:47,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:47,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274851905] [2023-11-29 04:16:47,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274851905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:47,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:47,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:47,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583911771] [2023-11-29 04:16:47,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:47,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:47,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:47,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:47,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:47,028 INFO L87 Difference]: Start difference. First operand 797 states and 1125 transitions. Second operand has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 04:16:47,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:47,176 INFO L93 Difference]: Finished difference Result 810 states and 1125 transitions. [2023-11-29 04:16:47,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:16:47,177 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 90 [2023-11-29 04:16:47,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:47,186 INFO L225 Difference]: With dead ends: 810 [2023-11-29 04:16:47,186 INFO L226 Difference]: Without dead ends: 802 [2023-11-29 04:16:47,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:47,187 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 408 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:47,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 453 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:16:47,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2023-11-29 04:16:47,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 789. [2023-11-29 04:16:47,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 644 states have (on average 1.56055900621118) internal successors, (1005), 740 states have internal predecessors, (1005), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:16:47,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1097 transitions. [2023-11-29 04:16:47,232 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1097 transitions. Word has length 90 [2023-11-29 04:16:47,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:47,232 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1097 transitions. [2023-11-29 04:16:47,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.666666666666668) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 04:16:47,233 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1097 transitions. [2023-11-29 04:16:47,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-29 04:16:47,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:47,234 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:47,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 04:16:47,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:47,435 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:47,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:47,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1515293429, now seen corresponding path program 1 times [2023-11-29 04:16:47,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:47,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302585262] [2023-11-29 04:16:47,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:47,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:47,446 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:47,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304562755] [2023-11-29 04:16:47,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:47,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:47,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:47,448 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:47,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 04:16:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:47,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:16:47,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:16:47,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:16:47,723 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 04:16:47,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:47,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302585262] [2023-11-29 04:16:47,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:47,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304562755] [2023-11-29 04:16:47,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304562755] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:16:47,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:16:47,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:16:47,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815183682] [2023-11-29 04:16:47,724 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:16:47,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:16:47,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:47,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:16:47,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:16:47,726 INFO L87 Difference]: Start difference. First operand 789 states and 1097 transitions. Second operand has 6 states, 5 states have (on average 27.0) internal successors, (135), 6 states have internal predecessors, (135), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 04:16:47,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:47,959 INFO L93 Difference]: Finished difference Result 904 states and 1124 transitions. [2023-11-29 04:16:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:16:47,960 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.0) internal successors, (135), 6 states have internal predecessors, (135), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2023-11-29 04:16:47,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:47,966 INFO L225 Difference]: With dead ends: 904 [2023-11-29 04:16:47,966 INFO L226 Difference]: Without dead ends: 896 [2023-11-29 04:16:47,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:16:47,968 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 489 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:47,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 899 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:16:47,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-29 04:16:48,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 784. [2023-11-29 04:16:48,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 644 states have (on average 1.5232919254658386) internal successors, (981), 735 states have internal predecessors, (981), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:16:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1073 transitions. [2023-11-29 04:16:48,017 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1073 transitions. Word has length 91 [2023-11-29 04:16:48,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:48,017 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 1073 transitions. [2023-11-29 04:16:48,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.0) internal successors, (135), 6 states have internal predecessors, (135), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 04:16:48,018 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1073 transitions. [2023-11-29 04:16:48,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-29 04:16:48,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:48,019 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:48,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 04:16:48,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:48,219 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:48,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:48,220 INFO L85 PathProgramCache]: Analyzing trace with hash 2065209256, now seen corresponding path program 1 times [2023-11-29 04:16:48,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:48,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768222884] [2023-11-29 04:16:48,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:48,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:48,228 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:48,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1706656507] [2023-11-29 04:16:48,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:48,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:48,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:48,230 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:48,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 04:16:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:48,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:16:48,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:48,378 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 04:16:48,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:16:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 04:16:48,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:48,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768222884] [2023-11-29 04:16:48,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:48,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706656507] [2023-11-29 04:16:48,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706656507] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:16:48,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:16:48,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:16:48,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468483680] [2023-11-29 04:16:48,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:16:48,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:16:48,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:48,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:16:48,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:16:48,539 INFO L87 Difference]: Start difference. First operand 784 states and 1073 transitions. Second operand has 6 states, 5 states have (on average 29.4) internal successors, (147), 6 states have internal predecessors, (147), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:16:48,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:48,755 INFO L93 Difference]: Finished difference Result 981 states and 1143 transitions. [2023-11-29 04:16:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:16:48,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.4) internal successors, (147), 6 states have internal predecessors, (147), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 102 [2023-11-29 04:16:48,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:48,764 INFO L225 Difference]: With dead ends: 981 [2023-11-29 04:16:48,764 INFO L226 Difference]: Without dead ends: 975 [2023-11-29 04:16:48,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:16:48,765 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 808 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:48,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 1199 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 04:16:48,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2023-11-29 04:16:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 779. [2023-11-29 04:16:48,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 644 states have (on average 1.5031055900621118) internal successors, (968), 730 states have internal predecessors, (968), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:16:48,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1060 transitions. [2023-11-29 04:16:48,804 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1060 transitions. Word has length 102 [2023-11-29 04:16:48,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:48,804 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1060 transitions. [2023-11-29 04:16:48,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.4) internal successors, (147), 6 states have internal predecessors, (147), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:16:48,804 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1060 transitions. [2023-11-29 04:16:48,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 04:16:48,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:48,806 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:48,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 04:16:49,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:49,006 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:49,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:49,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1943308681, now seen corresponding path program 1 times [2023-11-29 04:16:49,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:49,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921126452] [2023-11-29 04:16:49,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:49,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:49,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:49,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804135980] [2023-11-29 04:16:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:49,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:49,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:49,022 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:49,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 04:16:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:49,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:16:49,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:49,277 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:16:49,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:49,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:49,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921126452] [2023-11-29 04:16:49,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:49,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804135980] [2023-11-29 04:16:49,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804135980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:49,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:49,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:49,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308160197] [2023-11-29 04:16:49,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:49,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:49,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:49,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:49,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:49,280 INFO L87 Difference]: Start difference. First operand 779 states and 1060 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:16:50,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:50,544 INFO L93 Difference]: Finished difference Result 792 states and 1060 transitions. [2023-11-29 04:16:50,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:50,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 104 [2023-11-29 04:16:50,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:50,549 INFO L225 Difference]: With dead ends: 792 [2023-11-29 04:16:50,549 INFO L226 Difference]: Without dead ends: 791 [2023-11-29 04:16:50,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:50,551 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 114 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:50,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 393 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:16:50,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2023-11-29 04:16:50,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 779. [2023-11-29 04:16:50,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 644 states have (on average 1.5015527950310559) internal successors, (967), 730 states have internal predecessors, (967), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:16:50,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1059 transitions. [2023-11-29 04:16:50,582 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1059 transitions. Word has length 104 [2023-11-29 04:16:50,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:50,583 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1059 transitions. [2023-11-29 04:16:50,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:16:50,583 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1059 transitions. [2023-11-29 04:16:50,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-29 04:16:50,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:50,584 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:50,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 04:16:50,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 04:16:50,785 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:50,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:50,785 INFO L85 PathProgramCache]: Analyzing trace with hash -113026762, now seen corresponding path program 1 times [2023-11-29 04:16:50,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:50,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49175018] [2023-11-29 04:16:50,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:50,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:50,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:50,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806833628] [2023-11-29 04:16:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:50,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:50,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:50,799 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:50,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 04:16:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:50,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:16:50,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:16:51,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:51,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:51,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49175018] [2023-11-29 04:16:51,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:51,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806833628] [2023-11-29 04:16:51,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806833628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:51,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:51,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:51,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030422981] [2023-11-29 04:16:51,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:51,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:51,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:51,025 INFO L87 Difference]: Start difference. First operand 779 states and 1059 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:16:52,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:16:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:53,103 INFO L93 Difference]: Finished difference Result 791 states and 1059 transitions. [2023-11-29 04:16:53,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:16:53,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 105 [2023-11-29 04:16:53,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:53,108 INFO L225 Difference]: With dead ends: 791 [2023-11-29 04:16:53,108 INFO L226 Difference]: Without dead ends: 790 [2023-11-29 04:16:53,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:53,109 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 170 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:53,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 291 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:16:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-11-29 04:16:53,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 779. [2023-11-29 04:16:53,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 644 states have (on average 1.5) internal successors, (966), 730 states have internal predecessors, (966), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:16:53,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1058 transitions. [2023-11-29 04:16:53,145 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1058 transitions. Word has length 105 [2023-11-29 04:16:53,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:53,146 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1058 transitions. [2023-11-29 04:16:53,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:16:53,146 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1058 transitions. [2023-11-29 04:16:53,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 04:16:53,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:53,147 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:53,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-29 04:16:53,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 04:16:53,348 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:53,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:53,348 INFO L85 PathProgramCache]: Analyzing trace with hash 239482367, now seen corresponding path program 1 times [2023-11-29 04:16:53,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:53,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215162662] [2023-11-29 04:16:53,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:53,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:53,362 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:53,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303356613] [2023-11-29 04:16:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:53,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:53,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:53,365 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:53,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 04:16:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:53,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:16:53,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:53,800 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:16:53,800 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:53,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:53,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215162662] [2023-11-29 04:16:53,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:53,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303356613] [2023-11-29 04:16:53,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303356613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:53,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:53,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:16:53,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367845626] [2023-11-29 04:16:53,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:53,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:16:53,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:53,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:16:53,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:16:53,803 INFO L87 Difference]: Start difference. First operand 779 states and 1058 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:16:55,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:55,254 INFO L93 Difference]: Finished difference Result 790 states and 1058 transitions. [2023-11-29 04:16:55,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:16:55,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 112 [2023-11-29 04:16:55,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:55,260 INFO L225 Difference]: With dead ends: 790 [2023-11-29 04:16:55,260 INFO L226 Difference]: Without dead ends: 789 [2023-11-29 04:16:55,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:16:55,261 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 150 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:55,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 342 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:16:55,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-11-29 04:16:55,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 779. [2023-11-29 04:16:55,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 644 states have (on average 1.4984472049689441) internal successors, (965), 730 states have internal predecessors, (965), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:16:55,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1057 transitions. [2023-11-29 04:16:55,309 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1057 transitions. Word has length 112 [2023-11-29 04:16:55,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:55,310 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1057 transitions. [2023-11-29 04:16:55,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:16:55,311 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1057 transitions. [2023-11-29 04:16:55,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 04:16:55,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:55,313 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:55,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 04:16:55,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:55,520 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:55,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:55,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1165980994, now seen corresponding path program 1 times [2023-11-29 04:16:55,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:55,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709253643] [2023-11-29 04:16:55,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:55,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:55,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:55,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [257991868] [2023-11-29 04:16:55,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:55,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:55,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:55,536 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:55,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 04:16:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:55,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:16:55,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:55,825 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:16:55,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:55,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:55,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709253643] [2023-11-29 04:16:55,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:55,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257991868] [2023-11-29 04:16:55,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257991868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:55,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:55,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:16:55,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225434520] [2023-11-29 04:16:55,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:55,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:16:55,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:55,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:16:55,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:55,828 INFO L87 Difference]: Start difference. First operand 779 states and 1057 transitions. Second operand has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 04:16:58,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:16:58,944 INFO L93 Difference]: Finished difference Result 789 states and 1057 transitions. [2023-11-29 04:16:58,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:16:58,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 113 [2023-11-29 04:16:58,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:16:58,949 INFO L225 Difference]: With dead ends: 789 [2023-11-29 04:16:58,949 INFO L226 Difference]: Without dead ends: 788 [2023-11-29 04:16:58,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:16:58,951 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 117 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:16:58,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 375 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:16:58,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2023-11-29 04:16:58,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 779. [2023-11-29 04:16:58,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 644 states have (on average 1.4968944099378882) internal successors, (964), 730 states have internal predecessors, (964), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:16:58,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1056 transitions. [2023-11-29 04:16:58,990 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1056 transitions. Word has length 113 [2023-11-29 04:16:58,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:16:58,990 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1056 transitions. [2023-11-29 04:16:58,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 04:16:58,991 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1056 transitions. [2023-11-29 04:16:58,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 04:16:58,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:16:58,992 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:16:58,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 04:16:59,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:59,193 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:16:59,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:16:59,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1955919299, now seen corresponding path program 1 times [2023-11-29 04:16:59,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:16:59,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984970213] [2023-11-29 04:16:59,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:59,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:16:59,204 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:16:59,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017470182] [2023-11-29 04:16:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:16:59,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:16:59,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:16:59,208 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:16:59,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 04:16:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:16:59,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:16:59,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:16:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:16:59,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:16:59,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:16:59,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984970213] [2023-11-29 04:16:59,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:16:59,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017470182] [2023-11-29 04:16:59,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017470182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:16:59,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:16:59,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:16:59,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650169577] [2023-11-29 04:16:59,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:16:59,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:16:59,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:16:59,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:16:59,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:16:59,770 INFO L87 Difference]: Start difference. First operand 779 states and 1056 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:17:00,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:17:00,599 INFO L93 Difference]: Finished difference Result 788 states and 1056 transitions. [2023-11-29 04:17:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:17:00,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 116 [2023-11-29 04:17:00,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:17:00,603 INFO L225 Difference]: With dead ends: 788 [2023-11-29 04:17:00,604 INFO L226 Difference]: Without dead ends: 786 [2023-11-29 04:17:00,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:17:00,605 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 133 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:17:00,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 259 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:17:00,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2023-11-29 04:17:00,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 779. [2023-11-29 04:17:00,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 644 states have (on average 1.4937888198757765) internal successors, (962), 730 states have internal predecessors, (962), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:17:00,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1054 transitions. [2023-11-29 04:17:00,645 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1054 transitions. Word has length 116 [2023-11-29 04:17:00,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:17:00,645 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1054 transitions. [2023-11-29 04:17:00,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:17:00,645 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1054 transitions. [2023-11-29 04:17:00,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 04:17:00,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:17:00,646 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:17:00,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 04:17:00,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 04:17:00,847 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr85ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:17:00,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:17:00,847 INFO L85 PathProgramCache]: Analyzing trace with hash 503956354, now seen corresponding path program 1 times [2023-11-29 04:17:00,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:17:00,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359732797] [2023-11-29 04:17:00,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:00,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:17:00,858 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:17:00,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1669185648] [2023-11-29 04:17:00,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:00,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:00,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:17:00,860 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:17:00,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 04:17:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:17:00,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:17:00,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:17:01,631 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 04:17:01,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:17:01,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:17:01,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359732797] [2023-11-29 04:17:01,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:17:01,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669185648] [2023-11-29 04:17:01,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669185648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:17:01,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:17:01,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:17:01,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569077069] [2023-11-29 04:17:01,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:17:01,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:17:01,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:17:01,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:17:01,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:17:01,634 INFO L87 Difference]: Start difference. First operand 779 states and 1054 transitions. Second operand has 4 states, 3 states have (on average 28.333333333333332) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:17:02,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:17:02,418 INFO L93 Difference]: Finished difference Result 786 states and 1054 transitions. [2023-11-29 04:17:02,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:17:02,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 28.333333333333332) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 117 [2023-11-29 04:17:02,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:17:02,422 INFO L225 Difference]: With dead ends: 786 [2023-11-29 04:17:02,422 INFO L226 Difference]: Without dead ends: 784 [2023-11-29 04:17:02,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:17:02,423 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 94 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:17:02,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 249 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:17:02,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2023-11-29 04:17:02,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 779. [2023-11-29 04:17:02,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 644 states have (on average 1.4906832298136645) internal successors, (960), 730 states have internal predecessors, (960), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:17:02,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1052 transitions. [2023-11-29 04:17:02,449 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1052 transitions. Word has length 117 [2023-11-29 04:17:02,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:17:02,449 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1052 transitions. [2023-11-29 04:17:02,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 28.333333333333332) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 04:17:02,449 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1052 transitions. [2023-11-29 04:17:02,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 04:17:02,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:17:02,451 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:17:02,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 04:17:02,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:02,651 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:17:02,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:17:02,652 INFO L85 PathProgramCache]: Analyzing trace with hash -195471728, now seen corresponding path program 1 times [2023-11-29 04:17:02,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:17:02,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382829664] [2023-11-29 04:17:02,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:02,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:17:02,663 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:17:02,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126286147] [2023-11-29 04:17:02,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:02,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:02,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:17:02,665 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:17:02,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 04:17:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:17:02,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:17:02,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:17:03,138 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:17:03,138 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:17:07,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:17:07,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382829664] [2023-11-29 04:17:07,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:17:07,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126286147] [2023-11-29 04:17:07,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126286147] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:17:07,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:17:07,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:17:07,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567546981] [2023-11-29 04:17:07,440 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:17:07,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:17:07,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:17:07,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:17:07,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=41, Unknown=1, NotChecked=0, Total=72 [2023-11-29 04:17:07,441 INFO L87 Difference]: Start difference. First operand 779 states and 1052 transitions. Second operand has 6 states, 5 states have (on average 17.4) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:09,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:17:09,385 INFO L93 Difference]: Finished difference Result 879 states and 1079 transitions. [2023-11-29 04:17:09,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:17:09,386 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 124 [2023-11-29 04:17:09,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:17:09,389 INFO L225 Difference]: With dead ends: 879 [2023-11-29 04:17:09,390 INFO L226 Difference]: Without dead ends: 861 [2023-11-29 04:17:09,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=30, Invalid=41, Unknown=1, NotChecked=0, Total=72 [2023-11-29 04:17:09,390 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 300 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:17:09,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 458 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:17:09,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2023-11-29 04:17:09,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 787. [2023-11-29 04:17:09,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 652 states have (on average 1.4662576687116564) internal successors, (956), 737 states have internal predecessors, (956), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:17:09,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1048 transitions. [2023-11-29 04:17:09,414 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1048 transitions. Word has length 124 [2023-11-29 04:17:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:17:09,415 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 1048 transitions. [2023-11-29 04:17:09,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.4) internal successors, (87), 6 states have internal predecessors, (87), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:09,415 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1048 transitions. [2023-11-29 04:17:09,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 04:17:09,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:17:09,416 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:17:09,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 04:17:09,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 04:17:09,617 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:17:09,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:17:09,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1764656181, now seen corresponding path program 1 times [2023-11-29 04:17:09,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:17:09,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057794344] [2023-11-29 04:17:09,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:09,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:17:09,626 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:17:09,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703099621] [2023-11-29 04:17:09,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:09,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:09,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:17:09,627 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:17:09,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 04:17:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:17:09,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:17:09,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:17:09,900 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:17:09,900 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:17:10,066 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:17:10,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:17:10,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057794344] [2023-11-29 04:17:10,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:17:10,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703099621] [2023-11-29 04:17:10,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703099621] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:17:10,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:17:10,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:17:10,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243430262] [2023-11-29 04:17:10,067 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:17:10,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:17:10,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:17:10,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:17:10,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:17:10,069 INFO L87 Difference]: Start difference. First operand 787 states and 1048 transitions. Second operand has 6 states, 5 states have (on average 34.6) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 04:17:12,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:17:12,621 INFO L93 Difference]: Finished difference Result 885 states and 1061 transitions. [2023-11-29 04:17:12,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:17:12,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 34.6) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 125 [2023-11-29 04:17:12,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:17:12,627 INFO L225 Difference]: With dead ends: 885 [2023-11-29 04:17:12,627 INFO L226 Difference]: Without dead ends: 880 [2023-11-29 04:17:12,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:17:12,628 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 479 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:17:12,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 744 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 04:17:12,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-11-29 04:17:12,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 786. [2023-11-29 04:17:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 652 states have (on average 1.4478527607361964) internal successors, (944), 736 states have internal predecessors, (944), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:17:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1036 transitions. [2023-11-29 04:17:12,657 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1036 transitions. Word has length 125 [2023-11-29 04:17:12,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:17:12,657 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 1036 transitions. [2023-11-29 04:17:12,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 34.6) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 04:17:12,657 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1036 transitions. [2023-11-29 04:17:12,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 04:17:12,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:17:12,658 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:17:12,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 04:17:12,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:12,859 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:17:12,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:17:12,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1130233330, now seen corresponding path program 1 times [2023-11-29 04:17:12,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:17:12,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136880398] [2023-11-29 04:17:12,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:12,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:17:12,872 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:17:12,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090372026] [2023-11-29 04:17:12,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:12,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:12,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:17:12,874 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:17:12,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 04:17:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:17:12,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:17:12,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:17:13,158 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:17:13,158 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:17:13,319 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:17:13,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:17:13,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136880398] [2023-11-29 04:17:13,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:17:13,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090372026] [2023-11-29 04:17:13,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090372026] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:17:13,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:17:13,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:17:13,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162827557] [2023-11-29 04:17:13,320 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:17:13,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:17:13,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:17:13,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:17:13,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:17:13,322 INFO L87 Difference]: Start difference. First operand 786 states and 1036 transitions. Second operand has 6 states, 5 states have (on average 35.0) internal successors, (175), 6 states have internal predecessors, (175), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 04:17:17,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:17:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:17:19,043 INFO L93 Difference]: Finished difference Result 881 states and 1049 transitions. [2023-11-29 04:17:19,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:17:19,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 35.0) internal successors, (175), 6 states have internal predecessors, (175), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 126 [2023-11-29 04:17:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:17:19,048 INFO L225 Difference]: With dead ends: 881 [2023-11-29 04:17:19,048 INFO L226 Difference]: Without dead ends: 876 [2023-11-29 04:17:19,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:17:19,049 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 534 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:17:19,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 634 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-29 04:17:19,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2023-11-29 04:17:19,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 785. [2023-11-29 04:17:19,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 652 states have (on average 1.4294478527607362) internal successors, (932), 735 states have internal predecessors, (932), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:17:19,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1024 transitions. [2023-11-29 04:17:19,075 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1024 transitions. Word has length 126 [2023-11-29 04:17:19,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:17:19,076 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 1024 transitions. [2023-11-29 04:17:19,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 35.0) internal successors, (175), 6 states have internal predecessors, (175), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-29 04:17:19,076 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1024 transitions. [2023-11-29 04:17:19,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 04:17:19,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:17:19,077 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:17:19,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 04:17:19,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 04:17:19,278 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:17:19,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:17:19,278 INFO L85 PathProgramCache]: Analyzing trace with hash 677494957, now seen corresponding path program 1 times [2023-11-29 04:17:19,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:17:19,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876228979] [2023-11-29 04:17:19,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:19,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:17:19,291 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:17:19,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [413203775] [2023-11-29 04:17:19,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:19,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:19,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:17:19,292 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:17:19,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 04:17:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:17:19,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:17:19,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:17:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:17:19,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:17:28,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:17:28,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876228979] [2023-11-29 04:17:28,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:17:28,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413203775] [2023-11-29 04:17:28,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413203775] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:17:28,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:17:28,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:17:28,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012263780] [2023-11-29 04:17:28,464 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:17:28,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:17:28,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:17:28,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:17:28,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=55, Unknown=2, NotChecked=0, Total=90 [2023-11-29 04:17:28,465 INFO L87 Difference]: Start difference. First operand 785 states and 1024 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:30,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:17:30,712 INFO L93 Difference]: Finished difference Result 849 states and 1037 transitions. [2023-11-29 04:17:30,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:17:30,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 127 [2023-11-29 04:17:30,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:17:30,717 INFO L225 Difference]: With dead ends: 849 [2023-11-29 04:17:30,717 INFO L226 Difference]: Without dead ends: 839 [2023-11-29 04:17:30,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=33, Invalid=55, Unknown=2, NotChecked=0, Total=90 [2023-11-29 04:17:30,718 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 275 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:17:30,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 453 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 04:17:30,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2023-11-29 04:17:30,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 792. [2023-11-29 04:17:30,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 659 states have (on average 1.417298937784522) internal successors, (934), 742 states have internal predecessors, (934), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:17:30,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1026 transitions. [2023-11-29 04:17:30,745 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1026 transitions. Word has length 127 [2023-11-29 04:17:30,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:17:30,745 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 1026 transitions. [2023-11-29 04:17:30,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:30,746 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1026 transitions. [2023-11-29 04:17:30,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 04:17:30,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:17:30,747 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:17:30,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 04:17:30,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 04:17:30,947 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:17:30,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:17:30,948 INFO L85 PathProgramCache]: Analyzing trace with hash -472492716, now seen corresponding path program 1 times [2023-11-29 04:17:30,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:17:30,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412412563] [2023-11-29 04:17:30,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:30,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:17:30,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:17:30,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114391766] [2023-11-29 04:17:30,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:30,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:30,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:17:30,959 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:17:30,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 04:17:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:17:31,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:17:31,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:17:31,325 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:17:31,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:17:31,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:17:31,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412412563] [2023-11-29 04:17:31,682 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:17:31,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114391766] [2023-11-29 04:17:31,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114391766] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:17:31,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:17:31,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 04:17:31,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120238487] [2023-11-29 04:17:31,683 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:17:31,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:17:31,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:17:31,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:17:31,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:17:31,684 INFO L87 Difference]: Start difference. First operand 792 states and 1026 transitions. Second operand has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:33,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:17:33,391 INFO L93 Difference]: Finished difference Result 839 states and 1027 transitions. [2023-11-29 04:17:33,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:17:33,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 128 [2023-11-29 04:17:33,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:17:33,396 INFO L225 Difference]: With dead ends: 839 [2023-11-29 04:17:33,396 INFO L226 Difference]: Without dead ends: 837 [2023-11-29 04:17:33,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:17:33,396 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 362 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:17:33,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 485 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 04:17:33,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2023-11-29 04:17:33,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 792. [2023-11-29 04:17:33,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 659 states have (on average 1.4142640364188164) internal successors, (932), 742 states have internal predecessors, (932), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-29 04:17:33,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1024 transitions. [2023-11-29 04:17:33,418 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1024 transitions. Word has length 128 [2023-11-29 04:17:33,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:17:33,418 INFO L495 AbstractCegarLoop]: Abstraction has 792 states and 1024 transitions. [2023-11-29 04:17:33,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.75) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:33,418 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1024 transitions. [2023-11-29 04:17:33,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 04:17:33,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:17:33,419 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:17:33,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 04:17:33,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 04:17:33,619 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:17:33,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:17:33,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1150151656, now seen corresponding path program 1 times [2023-11-29 04:17:33,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:17:33,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831024482] [2023-11-29 04:17:33,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:33,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:17:33,628 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:17:33,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773486719] [2023-11-29 04:17:33,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:33,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:33,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:17:33,629 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:17:33,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 04:17:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:17:33,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:17:33,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:17:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:17:34,570 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:17:35,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:17:35,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831024482] [2023-11-29 04:17:35,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:17:35,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773486719] [2023-11-29 04:17:35,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773486719] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:17:35,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:17:35,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:17:35,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070028579] [2023-11-29 04:17:35,086 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:17:35,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:17:35,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:17:35,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:17:35,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:17:35,088 INFO L87 Difference]: Start difference. First operand 792 states and 1024 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:40,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:17:40,443 INFO L93 Difference]: Finished difference Result 860 states and 1059 transitions. [2023-11-29 04:17:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:17:40,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 132 [2023-11-29 04:17:40,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:17:40,449 INFO L225 Difference]: With dead ends: 860 [2023-11-29 04:17:40,449 INFO L226 Difference]: Without dead ends: 844 [2023-11-29 04:17:40,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:17:40,450 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 503 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:17:40,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 328 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-29 04:17:40,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2023-11-29 04:17:40,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 803. [2023-11-29 04:17:40,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 681 states have (on average 1.3582966226138031) internal successors, (925), 752 states have internal predecessors, (925), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 04:17:40,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1021 transitions. [2023-11-29 04:17:40,479 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1021 transitions. Word has length 132 [2023-11-29 04:17:40,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:17:40,480 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1021 transitions. [2023-11-29 04:17:40,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1021 transitions. [2023-11-29 04:17:40,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 04:17:40,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:17:40,481 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:17:40,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 04:17:40,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:40,682 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr97ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:17:40,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:17:40,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2216979, now seen corresponding path program 1 times [2023-11-29 04:17:40,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:17:40,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808224992] [2023-11-29 04:17:40,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:40,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:17:40,695 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:17:40,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [919710378] [2023-11-29 04:17:40,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:40,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:40,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:17:40,697 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:17:40,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 04:17:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:17:40,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:17:40,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:17:41,207 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 04:17:41,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:17:41,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:17:41,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808224992] [2023-11-29 04:17:41,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:17:41,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919710378] [2023-11-29 04:17:41,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919710378] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:17:41,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:17:41,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:17:41,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393245328] [2023-11-29 04:17:41,306 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:17:41,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:17:41,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:17:41,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:17:41,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:17:41,307 INFO L87 Difference]: Start difference. First operand 803 states and 1021 transitions. Second operand has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:44,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:17:44,589 INFO L93 Difference]: Finished difference Result 810 states and 1023 transitions. [2023-11-29 04:17:44,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:17:44,589 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 134 [2023-11-29 04:17:44,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:17:44,594 INFO L225 Difference]: With dead ends: 810 [2023-11-29 04:17:44,594 INFO L226 Difference]: Without dead ends: 808 [2023-11-29 04:17:44,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:17:44,595 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 214 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:17:44,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 508 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 04:17:44,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2023-11-29 04:17:44,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 803. [2023-11-29 04:17:44,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 681 states have (on average 1.355359765051395) internal successors, (923), 752 states have internal predecessors, (923), 48 states have call successors, (48), 4 states have call predecessors, (48), 4 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-29 04:17:44,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1019 transitions. [2023-11-29 04:17:44,625 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1019 transitions. Word has length 134 [2023-11-29 04:17:44,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:17:44,626 INFO L495 AbstractCegarLoop]: Abstraction has 803 states and 1019 transitions. [2023-11-29 04:17:44,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 7 states have internal predecessors, (100), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:44,626 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1019 transitions. [2023-11-29 04:17:44,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 04:17:44,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:17:44,627 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 04:17:44,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 04:17:44,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 04:17:44,828 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:17:44,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:17:44,828 INFO L85 PathProgramCache]: Analyzing trace with hash -842231076, now seen corresponding path program 1 times [2023-11-29 04:17:44,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:17:44,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311430362] [2023-11-29 04:17:44,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:44,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:17:44,837 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:17:44,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534073177] [2023-11-29 04:17:44,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:17:44,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:17:44,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:17:44,839 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:17:44,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 04:17:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:17:44,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:17:44,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:17:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:17:45,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:17:54,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:17:54,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311430362] [2023-11-29 04:17:54,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:17:54,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534073177] [2023-11-29 04:17:54,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534073177] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:17:54,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:17:54,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:17:54,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969809521] [2023-11-29 04:17:54,629 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:17:54,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:17:54,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:17:54,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:17:54,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=91, Unknown=1, NotChecked=0, Total=132 [2023-11-29 04:17:54,631 INFO L87 Difference]: Start difference. First operand 803 states and 1019 transitions. Second operand has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:17:59,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:17:59,985 INFO L93 Difference]: Finished difference Result 826 states and 1019 transitions. [2023-11-29 04:17:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:17:59,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 136 [2023-11-29 04:17:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:17:59,989 INFO L225 Difference]: With dead ends: 826 [2023-11-29 04:17:59,989 INFO L226 Difference]: Without dead ends: 790 [2023-11-29 04:17:59,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=86, Invalid=153, Unknown=1, NotChecked=0, Total=240 [2023-11-29 04:17:59,990 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 459 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:17:59,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 423 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-29 04:17:59,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-11-29 04:18:00,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 736. [2023-11-29 04:18:00,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 624 states have (on average 1.3509615384615385) internal successors, (843), 688 states have internal predecessors, (843), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-29 04:18:00,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 931 transitions. [2023-11-29 04:18:00,018 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 931 transitions. Word has length 136 [2023-11-29 04:18:00,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:18:00,018 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 931 transitions. [2023-11-29 04:18:00,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.5) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:18:00,018 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 931 transitions. [2023-11-29 04:18:00,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:18:00,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:18:00,020 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:18:00,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 04:18:00,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 04:18:00,220 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr105ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:18:00,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:18:00,221 INFO L85 PathProgramCache]: Analyzing trace with hash -135610085, now seen corresponding path program 1 times [2023-11-29 04:18:00,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:18:00,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652704556] [2023-11-29 04:18:00,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:18:00,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:18:00,231 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:18:00,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999262474] [2023-11-29 04:18:00,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:18:00,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:18:00,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:18:00,233 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:18:00,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 04:18:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:18:00,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:18:00,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:18:00,698 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:18:00,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:18:00,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:18:00,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652704556] [2023-11-29 04:18:00,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:18:00,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999262474] [2023-11-29 04:18:00,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999262474] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:18:00,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:18:00,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:18:00,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879696206] [2023-11-29 04:18:00,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:18:00,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:18:00,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:18:00,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:18:00,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:18:00,709 INFO L87 Difference]: Start difference. First operand 736 states and 931 transitions. Second operand has 4 states, 3 states have (on average 35.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 04:18:00,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:18:00,996 INFO L93 Difference]: Finished difference Result 746 states and 940 transitions. [2023-11-29 04:18:00,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:18:00,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 35.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 142 [2023-11-29 04:18:00,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:18:01,000 INFO L225 Difference]: With dead ends: 746 [2023-11-29 04:18:01,001 INFO L226 Difference]: Without dead ends: 745 [2023-11-29 04:18:01,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:18:01,002 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 117 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:18:01,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 241 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 04:18:01,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-11-29 04:18:01,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 737. [2023-11-29 04:18:01,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 625 states have (on average 1.3504) internal successors, (844), 689 states have internal predecessors, (844), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-29 04:18:01,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 932 transitions. [2023-11-29 04:18:01,030 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 932 transitions. Word has length 142 [2023-11-29 04:18:01,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:18:01,031 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 932 transitions. [2023-11-29 04:18:01,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 35.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 04:18:01,031 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 932 transitions. [2023-11-29 04:18:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 04:18:01,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:18:01,032 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 04:18:01,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 04:18:01,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 04:18:01,233 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:18:01,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:18:01,233 INFO L85 PathProgramCache]: Analyzing trace with hash 2012714209, now seen corresponding path program 1 times [2023-11-29 04:18:01,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:18:01,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603859736] [2023-11-29 04:18:01,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:18:01,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:18:01,243 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:18:01,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339755850] [2023-11-29 04:18:01,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:18:01,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:18:01,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:18:01,244 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:18:01,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 04:18:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:18:01,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:18:01,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:18:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 04:18:01,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:18:01,756 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-29 04:18:01,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:18:01,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603859736] [2023-11-29 04:18:01,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:18:01,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339755850] [2023-11-29 04:18:01,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339755850] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:18:01,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:18:01,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 04:18:01,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382413559] [2023-11-29 04:18:01,758 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:18:01,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:18:01,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:18:01,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:18:01,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:18:01,760 INFO L87 Difference]: Start difference. First operand 737 states and 932 transitions. Second operand has 6 states, 5 states have (on average 40.6) internal successors, (203), 6 states have internal predecessors, (203), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 04:18:08,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:09,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:13,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:18,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:22,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:26,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:30,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:35,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:39,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:43,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:47,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:48,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:52,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:56,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:18:59,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:03,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:07,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:11,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:15,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:19,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:23,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:27,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:31,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:35,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:39,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:43,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:47,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:50,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:19:50,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:19:50,133 INFO L93 Difference]: Finished difference Result 1000 states and 1119 transitions. [2023-11-29 04:19:50,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:19:50,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 40.6) internal successors, (203), 6 states have internal predecessors, (203), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 145 [2023-11-29 04:19:50,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:19:50,139 INFO L225 Difference]: With dead ends: 1000 [2023-11-29 04:19:50,139 INFO L226 Difference]: Without dead ends: 997 [2023-11-29 04:19:50,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:19:50,141 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 713 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 22 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:19:50,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 583 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 729 Invalid, 24 Unknown, 0 Unchecked, 108.3s Time] [2023-11-29 04:19:50,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2023-11-29 04:19:50,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 810. [2023-11-29 04:19:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 692 states have (on average 1.3526011560693643) internal successors, (936), 756 states have internal predecessors, (936), 50 states have call successors, (50), 4 states have call predecessors, (50), 4 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 04:19:50,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1036 transitions. [2023-11-29 04:19:50,174 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1036 transitions. Word has length 145 [2023-11-29 04:19:50,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:19:50,175 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 1036 transitions. [2023-11-29 04:19:50,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 40.6) internal successors, (203), 6 states have internal predecessors, (203), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 04:19:50,175 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1036 transitions. [2023-11-29 04:19:50,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-29 04:19:50,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:19:50,176 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:19:50,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 04:19:50,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 04:19:50,377 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr109ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:19:50,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:19:50,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1801549921, now seen corresponding path program 1 times [2023-11-29 04:19:50,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:19:50,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467413320] [2023-11-29 04:19:50,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:19:50,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:19:50,388 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:19:50,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [808994938] [2023-11-29 04:19:50,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:19:50,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:19:50,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:19:50,389 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:19:50,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 04:19:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:19:50,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:19:50,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:19:51,055 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:19:51,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:19:51,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:19:51,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467413320] [2023-11-29 04:19:51,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:19:51,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808994938] [2023-11-29 04:19:51,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808994938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:19:51,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:19:51,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:19:51,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203766321] [2023-11-29 04:19:51,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:19:51,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:19:51,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:19:51,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:19:51,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:19:51,058 INFO L87 Difference]: Start difference. First operand 810 states and 1036 transitions. Second operand has 3 states, 2 states have (on average 54.5) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 04:19:51,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:19:51,736 INFO L93 Difference]: Finished difference Result 818 states and 1043 transitions. [2023-11-29 04:19:51,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:19:51,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 54.5) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 146 [2023-11-29 04:19:51,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:19:51,740 INFO L225 Difference]: With dead ends: 818 [2023-11-29 04:19:51,740 INFO L226 Difference]: Without dead ends: 757 [2023-11-29 04:19:51,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:19:51,741 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 6 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:19:51,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 216 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:19:51,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-11-29 04:19:51,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 757. [2023-11-29 04:19:51,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 642 states have (on average 1.3785046728971964) internal successors, (885), 706 states have internal predecessors, (885), 47 states have call successors, (47), 4 states have call predecessors, (47), 4 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:19:51,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 979 transitions. [2023-11-29 04:19:51,770 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 979 transitions. Word has length 146 [2023-11-29 04:19:51,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:19:51,771 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 979 transitions. [2023-11-29 04:19:51,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 54.5) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-29 04:19:51,771 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 979 transitions. [2023-11-29 04:19:51,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 04:19:51,772 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:19:51,772 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:19:51,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 04:19:51,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 04:19:51,973 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:19:51,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:19:51,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1454534654, now seen corresponding path program 1 times [2023-11-29 04:19:51,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:19:51,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480981477] [2023-11-29 04:19:51,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:19:51,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:19:51,984 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:19:51,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509968022] [2023-11-29 04:19:51,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:19:51,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:19:51,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:19:51,985 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:19:51,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 04:19:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:19:52,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:19:52,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:19:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:19:52,540 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:19:52,775 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 04:19:52,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:19:52,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480981477] [2023-11-29 04:19:52,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:19:52,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509968022] [2023-11-29 04:19:52,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509968022] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:19:52,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:19:52,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 04:19:52,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697124140] [2023-11-29 04:19:52,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:19:52,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:19:52,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:19:52,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:19:52,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:19:52,778 INFO L87 Difference]: Start difference. First operand 757 states and 979 transitions. Second operand has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 8 states have internal predecessors, (233), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-29 04:19:55,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:19:55,408 INFO L93 Difference]: Finished difference Result 859 states and 998 transitions. [2023-11-29 04:19:55,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:19:55,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 8 states have internal predecessors, (233), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 165 [2023-11-29 04:19:55,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:19:55,411 INFO L225 Difference]: With dead ends: 859 [2023-11-29 04:19:55,412 INFO L226 Difference]: Without dead ends: 858 [2023-11-29 04:19:55,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:19:55,412 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 471 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:19:55,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 412 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 04:19:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2023-11-29 04:19:55,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 757. [2023-11-29 04:19:55,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 642 states have (on average 1.3753894080996885) internal successors, (883), 706 states have internal predecessors, (883), 47 states have call successors, (47), 4 states have call predecessors, (47), 4 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:19:55,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 977 transitions. [2023-11-29 04:19:55,461 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 977 transitions. Word has length 165 [2023-11-29 04:19:55,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:19:55,462 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 977 transitions. [2023-11-29 04:19:55,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 33.285714285714285) internal successors, (233), 8 states have internal predecessors, (233), 4 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-29 04:19:55,462 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 977 transitions. [2023-11-29 04:19:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 04:19:55,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:19:55,464 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:19:55,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 04:19:55,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 04:19:55,664 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:19:55,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:19:55,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1920667239, now seen corresponding path program 1 times [2023-11-29 04:19:55,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:19:55,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253682597] [2023-11-29 04:19:55,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:19:55,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:19:55,676 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:19:55,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195801777] [2023-11-29 04:19:55,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:19:55,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:19:55,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:19:55,678 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:19:55,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 04:19:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:19:55,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:19:55,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:19:55,913 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:19:55,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:19:56,089 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:19:56,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:19:56,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253682597] [2023-11-29 04:19:56,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:19:56,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195801777] [2023-11-29 04:19:56,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195801777] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:19:56,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:19:56,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 04:19:56,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401650962] [2023-11-29 04:19:56,090 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:19:56,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:19:56,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:19:56,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:19:56,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:19:56,092 INFO L87 Difference]: Start difference. First operand 757 states and 977 transitions. Second operand has 8 states, 7 states have (on average 33.857142857142854) internal successors, (237), 8 states have internal predecessors, (237), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-29 04:19:56,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:19:56,883 INFO L93 Difference]: Finished difference Result 869 states and 1037 transitions. [2023-11-29 04:19:56,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:19:56,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 33.857142857142854) internal successors, (237), 8 states have internal predecessors, (237), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 172 [2023-11-29 04:19:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:19:56,888 INFO L225 Difference]: With dead ends: 869 [2023-11-29 04:19:56,888 INFO L226 Difference]: Without dead ends: 867 [2023-11-29 04:19:56,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:19:56,889 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 901 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:19:56,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 747 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:19:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2023-11-29 04:19:56,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 755. [2023-11-29 04:19:56,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 642 states have (on average 1.3566978193146417) internal successors, (871), 704 states have internal predecessors, (871), 47 states have call successors, (47), 4 states have call predecessors, (47), 4 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:19:56,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 965 transitions. [2023-11-29 04:19:56,920 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 965 transitions. Word has length 172 [2023-11-29 04:19:56,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:19:56,920 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 965 transitions. [2023-11-29 04:19:56,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 33.857142857142854) internal successors, (237), 8 states have internal predecessors, (237), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-11-29 04:19:56,920 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 965 transitions. [2023-11-29 04:19:56,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 04:19:56,921 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:19:56,921 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:19:56,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 04:19:57,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:19:57,122 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:19:57,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:19:57,122 INFO L85 PathProgramCache]: Analyzing trace with hash -588857553, now seen corresponding path program 1 times [2023-11-29 04:19:57,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:19:57,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665584447] [2023-11-29 04:19:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:19:57,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:19:57,133 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:19:57,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1241529748] [2023-11-29 04:19:57,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:19:57,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:19:57,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:19:57,135 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:19:57,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 04:19:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:19:57,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:19:57,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:19:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:19:57,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:19:58,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:19:58,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665584447] [2023-11-29 04:19:58,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:19:58,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241529748] [2023-11-29 04:19:58,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241529748] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:19:58,233 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:19:58,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:19:58,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163303483] [2023-11-29 04:19:58,233 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:19:58,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:19:58,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:19:58,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:19:58,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:19:58,234 INFO L87 Difference]: Start difference. First operand 755 states and 965 transitions. Second operand has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:20:00,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:00,422 INFO L93 Difference]: Finished difference Result 781 states and 965 transitions. [2023-11-29 04:20:00,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:20:00,422 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 173 [2023-11-29 04:20:00,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:00,426 INFO L225 Difference]: With dead ends: 781 [2023-11-29 04:20:00,426 INFO L226 Difference]: Without dead ends: 780 [2023-11-29 04:20:00,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:20:00,427 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 161 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:00,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 530 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 04:20:00,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2023-11-29 04:20:00,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 755. [2023-11-29 04:20:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 642 states have (on average 1.355140186915888) internal successors, (870), 704 states have internal predecessors, (870), 47 states have call successors, (47), 4 states have call predecessors, (47), 4 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 964 transitions. [2023-11-29 04:20:00,455 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 964 transitions. Word has length 173 [2023-11-29 04:20:00,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:00,455 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 964 transitions. [2023-11-29 04:20:00,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.2) internal successors, (121), 6 states have internal predecessors, (121), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:20:00,455 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 964 transitions. [2023-11-29 04:20:00,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 04:20:00,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:00,456 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:00,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 04:20:00,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:00,657 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:00,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:00,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1074714775, now seen corresponding path program 1 times [2023-11-29 04:20:00,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:00,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637762043] [2023-11-29 04:20:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:00,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:00,667 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:00,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [517485298] [2023-11-29 04:20:00,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:00,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:00,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:00,669 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:00,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 04:20:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:00,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:20:00,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:01,353 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:20:01,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:01,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:01,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637762043] [2023-11-29 04:20:01,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:01,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517485298] [2023-11-29 04:20:01,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517485298] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:01,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:01,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:20:01,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297740623] [2023-11-29 04:20:01,532 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:01,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:20:01,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:01,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:20:01,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:20:01,533 INFO L87 Difference]: Start difference. First operand 755 states and 964 transitions. Second operand has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 7 states have internal predecessors, (122), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 04:20:03,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:03,455 INFO L93 Difference]: Finished difference Result 780 states and 964 transitions. [2023-11-29 04:20:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:20:03,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 7 states have internal predecessors, (122), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 174 [2023-11-29 04:20:03,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:03,457 INFO L225 Difference]: With dead ends: 780 [2023-11-29 04:20:03,457 INFO L226 Difference]: Without dead ends: 779 [2023-11-29 04:20:03,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:20:03,458 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 155 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:03,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 706 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1089 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 04:20:03,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-11-29 04:20:03,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 755. [2023-11-29 04:20:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 642 states have (on average 1.353582554517134) internal successors, (869), 704 states have internal predecessors, (869), 47 states have call successors, (47), 4 states have call predecessors, (47), 4 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 963 transitions. [2023-11-29 04:20:03,489 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 963 transitions. Word has length 174 [2023-11-29 04:20:03,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:03,489 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 963 transitions. [2023-11-29 04:20:03,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 7 states have internal predecessors, (122), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 04:20:03,490 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 963 transitions. [2023-11-29 04:20:03,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 04:20:03,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:03,491 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:03,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 04:20:03,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:03,691 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:03,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:03,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2008741781, now seen corresponding path program 1 times [2023-11-29 04:20:03,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:03,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926626616] [2023-11-29 04:20:03,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:03,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:03,700 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:03,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2057546276] [2023-11-29 04:20:03,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:03,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:03,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:03,702 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:03,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 04:20:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:03,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:20:03,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:20:03,992 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:04,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:04,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926626616] [2023-11-29 04:20:04,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:04,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057546276] [2023-11-29 04:20:04,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057546276] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:04,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:04,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 04:20:04,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174336829] [2023-11-29 04:20:04,534 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:04,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:20:04,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:04,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:20:04,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:20:04,535 INFO L87 Difference]: Start difference. First operand 755 states and 963 transitions. Second operand has 5 states, 4 states have (on average 31.0) internal successors, (124), 5 states have internal predecessors, (124), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:20:05,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:05,162 INFO L93 Difference]: Finished difference Result 779 states and 963 transitions. [2023-11-29 04:20:05,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:20:05,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 31.0) internal successors, (124), 5 states have internal predecessors, (124), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 176 [2023-11-29 04:20:05,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:05,164 INFO L225 Difference]: With dead ends: 779 [2023-11-29 04:20:05,164 INFO L226 Difference]: Without dead ends: 774 [2023-11-29 04:20:05,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:20:05,165 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 74 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:05,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 608 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 04:20:05,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2023-11-29 04:20:05,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 755. [2023-11-29 04:20:05,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 642 states have (on average 1.3457943925233644) internal successors, (864), 704 states have internal predecessors, (864), 47 states have call successors, (47), 4 states have call predecessors, (47), 4 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 958 transitions. [2023-11-29 04:20:05,209 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 958 transitions. Word has length 176 [2023-11-29 04:20:05,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:05,209 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 958 transitions. [2023-11-29 04:20:05,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 31.0) internal successors, (124), 5 states have internal predecessors, (124), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:20:05,210 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 958 transitions. [2023-11-29 04:20:05,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 04:20:05,211 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:05,211 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:05,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2023-11-29 04:20:05,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:05,411 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:05,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash -2141452877, now seen corresponding path program 1 times [2023-11-29 04:20:05,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:05,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431603542] [2023-11-29 04:20:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:05,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:05,422 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:05,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524904145] [2023-11-29 04:20:05,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:05,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:05,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:05,424 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:05,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 04:20:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:05,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:20:05,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:06,359 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:20:06,359 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:06,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:06,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431603542] [2023-11-29 04:20:06,508 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:06,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524904145] [2023-11-29 04:20:06,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524904145] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:06,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:06,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:20:06,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221733257] [2023-11-29 04:20:06,509 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:06,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:20:06,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:06,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:20:06,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:20:06,510 INFO L87 Difference]: Start difference. First operand 755 states and 958 transitions. Second operand has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:20:09,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:09,062 INFO L93 Difference]: Finished difference Result 774 states and 958 transitions. [2023-11-29 04:20:09,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:20:09,062 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 177 [2023-11-29 04:20:09,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:09,064 INFO L225 Difference]: With dead ends: 774 [2023-11-29 04:20:09,064 INFO L226 Difference]: Without dead ends: 772 [2023-11-29 04:20:09,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:20:09,065 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 71 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:09,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 694 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 04:20:09,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2023-11-29 04:20:09,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 755. [2023-11-29 04:20:09,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 642 states have (on average 1.3426791277258567) internal successors, (862), 704 states have internal predecessors, (862), 47 states have call successors, (47), 4 states have call predecessors, (47), 4 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 956 transitions. [2023-11-29 04:20:09,089 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 956 transitions. Word has length 177 [2023-11-29 04:20:09,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:09,089 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 956 transitions. [2023-11-29 04:20:09,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.833333333333332) internal successors, (125), 7 states have internal predecessors, (125), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:20:09,089 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 956 transitions. [2023-11-29 04:20:09,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-29 04:20:09,090 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:09,090 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:09,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 04:20:09,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 04:20:09,291 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:09,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:09,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1960529555, now seen corresponding path program 1 times [2023-11-29 04:20:09,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:09,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327762744] [2023-11-29 04:20:09,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:09,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:09,302 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:09,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [282955438] [2023-11-29 04:20:09,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:09,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:09,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:09,303 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:09,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 04:20:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:09,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:20:09,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:20:10,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:10,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:10,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327762744] [2023-11-29 04:20:10,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:10,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282955438] [2023-11-29 04:20:10,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282955438] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:10,664 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:10,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:20:10,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114349678] [2023-11-29 04:20:10,664 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:10,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:20:10,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:10,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:20:10,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:20:10,666 INFO L87 Difference]: Start difference. First operand 755 states and 956 transitions. Second operand has 7 states, 6 states have (on average 21.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:20:12,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:20:17,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:17,500 INFO L93 Difference]: Finished difference Result 861 states and 1057 transitions. [2023-11-29 04:20:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:20:17,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 178 [2023-11-29 04:20:17,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:17,502 INFO L225 Difference]: With dead ends: 861 [2023-11-29 04:20:17,502 INFO L226 Difference]: Without dead ends: 859 [2023-11-29 04:20:17,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:20:17,503 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 637 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:17,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 216 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-29 04:20:17,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2023-11-29 04:20:17,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 755. [2023-11-29 04:20:17,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 642 states have (on average 1.3333333333333333) internal successors, (856), 704 states have internal predecessors, (856), 47 states have call successors, (47), 4 states have call predecessors, (47), 4 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:17,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 950 transitions. [2023-11-29 04:20:17,533 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 950 transitions. Word has length 178 [2023-11-29 04:20:17,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:17,534 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 950 transitions. [2023-11-29 04:20:17,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.0) internal successors, (126), 7 states have internal predecessors, (126), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 04:20:17,534 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 950 transitions. [2023-11-29 04:20:17,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-29 04:20:17,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:17,535 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:17,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2023-11-29 04:20:17,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 04:20:17,736 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:17,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:17,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1771041790, now seen corresponding path program 1 times [2023-11-29 04:20:17,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:17,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82806229] [2023-11-29 04:20:17,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:17,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:17,757 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:17,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000297125] [2023-11-29 04:20:17,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:17,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:17,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:17,758 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:17,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 04:20:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:17,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:20:17,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:18,015 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 40 proven. 172 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-11-29 04:20:18,015 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:18,182 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 04:20:18,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:18,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82806229] [2023-11-29 04:20:18,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:18,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000297125] [2023-11-29 04:20:18,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000297125] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:20:18,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:20:18,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2023-11-29 04:20:18,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455031109] [2023-11-29 04:20:18,183 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:18,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:20:18,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:18,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:20:18,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:20:18,185 INFO L87 Difference]: Start difference. First operand 755 states and 950 transitions. Second operand has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 12 states have internal predecessors, (263), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 04:20:18,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:18,448 INFO L93 Difference]: Finished difference Result 1185 states and 1344 transitions. [2023-11-29 04:20:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:20:18,448 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 12 states have internal predecessors, (263), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 185 [2023-11-29 04:20:18,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:18,451 INFO L225 Difference]: With dead ends: 1185 [2023-11-29 04:20:18,451 INFO L226 Difference]: Without dead ends: 907 [2023-11-29 04:20:18,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 356 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=271, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:20:18,452 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 471 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:18,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1535 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:20:18,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2023-11-29 04:20:18,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 762. [2023-11-29 04:20:18,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 648 states have (on average 1.3055555555555556) internal successors, (846), 711 states have internal predecessors, (846), 47 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:18,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 940 transitions. [2023-11-29 04:20:18,490 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 940 transitions. Word has length 185 [2023-11-29 04:20:18,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:18,491 INFO L495 AbstractCegarLoop]: Abstraction has 762 states and 940 transitions. [2023-11-29 04:20:18,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 12 states have internal predecessors, (263), 5 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 04:20:18,491 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 940 transitions. [2023-11-29 04:20:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-29 04:20:18,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:18,492 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:18,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 04:20:18,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 04:20:18,693 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:18,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:18,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1313007219, now seen corresponding path program 1 times [2023-11-29 04:20:18,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:18,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309546362] [2023-11-29 04:20:18,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:18,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:18,707 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:18,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [316378957] [2023-11-29 04:20:18,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:18,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:18,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:18,709 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:18,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 04:20:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:18,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:20:18,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 04:20:19,251 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:19,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:19,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309546362] [2023-11-29 04:20:19,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:19,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316378957] [2023-11-29 04:20:19,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316378957] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:19,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:19,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:20:19,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113513897] [2023-11-29 04:20:19,713 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:19,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:20:19,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:19,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:20:19,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:20:19,714 INFO L87 Difference]: Start difference. First operand 762 states and 940 transitions. Second operand has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:20:20,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:20,810 INFO L93 Difference]: Finished difference Result 788 states and 940 transitions. [2023-11-29 04:20:20,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:20:20,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 188 [2023-11-29 04:20:20,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:20,812 INFO L225 Difference]: With dead ends: 788 [2023-11-29 04:20:20,812 INFO L226 Difference]: Without dead ends: 786 [2023-11-29 04:20:20,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=95, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:20:20,813 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 458 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:20,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 231 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:20:20,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2023-11-29 04:20:20,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 760. [2023-11-29 04:20:20,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 648 states have (on average 1.2901234567901234) internal successors, (836), 709 states have internal predecessors, (836), 47 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:20,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 930 transitions. [2023-11-29 04:20:20,844 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 930 transitions. Word has length 188 [2023-11-29 04:20:20,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:20,844 INFO L495 AbstractCegarLoop]: Abstraction has 760 states and 930 transitions. [2023-11-29 04:20:20,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.2) internal successors, (131), 6 states have internal predecessors, (131), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:20:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 930 transitions. [2023-11-29 04:20:20,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-29 04:20:20,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:20,846 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:20,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2023-11-29 04:20:21,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:21,046 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:21,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:21,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2048518330, now seen corresponding path program 1 times [2023-11-29 04:20:21,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:21,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899094976] [2023-11-29 04:20:21,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:21,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:21,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:21,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671789288] [2023-11-29 04:20:21,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:21,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:21,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:21,056 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:21,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 04:20:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:21,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:20:21,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:21,600 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 04:20:21,600 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:21,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:21,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899094976] [2023-11-29 04:20:21,865 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:21,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671789288] [2023-11-29 04:20:21,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671789288] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:21,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:21,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 04:20:21,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336956499] [2023-11-29 04:20:21,865 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:21,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:20:21,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:21,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:20:21,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:20:21,866 INFO L87 Difference]: Start difference. First operand 760 states and 930 transitions. Second operand has 7 states, 6 states have (on average 22.0) internal successors, (132), 7 states have internal predecessors, (132), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:20:22,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:22,679 INFO L93 Difference]: Finished difference Result 773 states and 930 transitions. [2023-11-29 04:20:22,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:20:22,680 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.0) internal successors, (132), 7 states have internal predecessors, (132), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 189 [2023-11-29 04:20:22,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:22,682 INFO L225 Difference]: With dead ends: 773 [2023-11-29 04:20:22,682 INFO L226 Difference]: Without dead ends: 771 [2023-11-29 04:20:22,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:20:22,682 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 192 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:22,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 470 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:20:22,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2023-11-29 04:20:22,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 760. [2023-11-29 04:20:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 648 states have (on average 1.287037037037037) internal successors, (834), 709 states have internal predecessors, (834), 47 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:22,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 928 transitions. [2023-11-29 04:20:22,726 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 928 transitions. Word has length 189 [2023-11-29 04:20:22,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:22,727 INFO L495 AbstractCegarLoop]: Abstraction has 760 states and 928 transitions. [2023-11-29 04:20:22,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.0) internal successors, (132), 7 states have internal predecessors, (132), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:20:22,727 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 928 transitions. [2023-11-29 04:20:22,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-29 04:20:22,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:22,729 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:22,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 04:20:22,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 04:20:22,929 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:22,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:22,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1759242747, now seen corresponding path program 1 times [2023-11-29 04:20:22,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:22,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206145832] [2023-11-29 04:20:22,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:22,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:22,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:22,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888613438] [2023-11-29 04:20:22,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:22,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:22,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:22,945 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:22,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 04:20:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:23,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:20:23,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:23,894 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 04:20:23,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:32,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:32,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206145832] [2023-11-29 04:20:32,784 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:32,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888613438] [2023-11-29 04:20:32,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888613438] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:32,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:32,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:20:32,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512937012] [2023-11-29 04:20:32,785 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:32,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:20:32,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:32,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:20:32,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=124, Unknown=2, NotChecked=0, Total=182 [2023-11-29 04:20:32,787 INFO L87 Difference]: Start difference. First operand 760 states and 928 transitions. Second operand has 8 states, 7 states have (on average 19.857142857142858) internal successors, (139), 8 states have internal predecessors, (139), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:20:34,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:34,598 INFO L93 Difference]: Finished difference Result 771 states and 928 transitions. [2023-11-29 04:20:34,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:20:34,599 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.857142857142858) internal successors, (139), 8 states have internal predecessors, (139), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 196 [2023-11-29 04:20:34,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:34,600 INFO L225 Difference]: With dead ends: 771 [2023-11-29 04:20:34,600 INFO L226 Difference]: Without dead ends: 768 [2023-11-29 04:20:34,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=63, Invalid=145, Unknown=2, NotChecked=0, Total=210 [2023-11-29 04:20:34,601 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 105 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:34,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 363 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:20:34,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2023-11-29 04:20:34,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 760. [2023-11-29 04:20:34,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 648 states have (on average 1.2824074074074074) internal successors, (831), 709 states have internal predecessors, (831), 47 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 925 transitions. [2023-11-29 04:20:34,633 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 925 transitions. Word has length 196 [2023-11-29 04:20:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:34,633 INFO L495 AbstractCegarLoop]: Abstraction has 760 states and 925 transitions. [2023-11-29 04:20:34,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.857142857142858) internal successors, (139), 8 states have internal predecessors, (139), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:20:34,633 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 925 transitions. [2023-11-29 04:20:34,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 04:20:34,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:34,635 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:34,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 04:20:34,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 04:20:34,836 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:34,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:34,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1298049470, now seen corresponding path program 1 times [2023-11-29 04:20:34,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:34,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940473852] [2023-11-29 04:20:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:34,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:34,848 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:34,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397137674] [2023-11-29 04:20:34,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:34,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:34,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:34,850 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:34,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 04:20:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:34,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:20:34,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:35,549 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 04:20:35,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:35,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:35,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940473852] [2023-11-29 04:20:35,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:35,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397137674] [2023-11-29 04:20:35,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397137674] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:35,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:35,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 04:20:35,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640984674] [2023-11-29 04:20:35,719 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:35,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:20:35,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:35,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:20:35,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:20:35,721 INFO L87 Difference]: Start difference. First operand 760 states and 925 transitions. Second operand has 6 states, 5 states have (on average 28.0) internal successors, (140), 6 states have internal predecessors, (140), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 04:20:39,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:39,690 INFO L93 Difference]: Finished difference Result 760 states and 925 transitions. [2023-11-29 04:20:39,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:20:39,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 28.0) internal successors, (140), 6 states have internal predecessors, (140), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 197 [2023-11-29 04:20:39,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:39,693 INFO L225 Difference]: With dead ends: 760 [2023-11-29 04:20:39,693 INFO L226 Difference]: Without dead ends: 758 [2023-11-29 04:20:39,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:20:39,694 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 553 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:39,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 137 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 04:20:39,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2023-11-29 04:20:39,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 758. [2023-11-29 04:20:39,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 648 states have (on average 1.2685185185185186) internal successors, (822), 707 states have internal predecessors, (822), 47 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 916 transitions. [2023-11-29 04:20:39,726 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 916 transitions. Word has length 197 [2023-11-29 04:20:39,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:39,726 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 916 transitions. [2023-11-29 04:20:39,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 28.0) internal successors, (140), 6 states have internal predecessors, (140), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-29 04:20:39,727 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 916 transitions. [2023-11-29 04:20:39,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-29 04:20:39,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:39,728 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:39,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 04:20:39,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:39,929 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr85ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:39,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:39,929 INFO L85 PathProgramCache]: Analyzing trace with hash 974204166, now seen corresponding path program 1 times [2023-11-29 04:20:39,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:39,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615180729] [2023-11-29 04:20:39,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:39,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:39,941 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:39,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466336551] [2023-11-29 04:20:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:39,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:39,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:39,943 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:39,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 04:20:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:40,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:20:40,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:40,621 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 04:20:40,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:49,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:49,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615180729] [2023-11-29 04:20:49,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:49,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466336551] [2023-11-29 04:20:49,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466336551] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:49,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:49,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:20:49,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516362219] [2023-11-29 04:20:49,420 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:49,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:20:49,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:49,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:20:49,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=243, Unknown=1, NotChecked=0, Total=306 [2023-11-29 04:20:49,422 INFO L87 Difference]: Start difference. First operand 758 states and 916 transitions. Second operand has 10 states, 9 states have (on average 16.0) internal successors, (144), 10 states have internal predecessors, (144), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:20:51,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:51,536 INFO L93 Difference]: Finished difference Result 765 states and 916 transitions. [2023-11-29 04:20:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:20:51,537 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.0) internal successors, (144), 10 states have internal predecessors, (144), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 201 [2023-11-29 04:20:51,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:51,538 INFO L225 Difference]: With dead ends: 765 [2023-11-29 04:20:51,538 INFO L226 Difference]: Without dead ends: 763 [2023-11-29 04:20:51,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=79, Invalid=300, Unknown=1, NotChecked=0, Total=380 [2023-11-29 04:20:51,539 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 183 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:51,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 497 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:20:51,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-11-29 04:20:51,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 758. [2023-11-29 04:20:51,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 648 states have (on average 1.2654320987654322) internal successors, (820), 707 states have internal predecessors, (820), 47 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:51,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 914 transitions. [2023-11-29 04:20:51,576 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 914 transitions. Word has length 201 [2023-11-29 04:20:51,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:51,576 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 914 transitions. [2023-11-29 04:20:51,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.0) internal successors, (144), 10 states have internal predecessors, (144), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2023-11-29 04:20:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 914 transitions. [2023-11-29 04:20:51,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-29 04:20:51,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:51,577 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-29 04:20:51,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 04:20:51,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:51,778 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:51,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:51,779 INFO L85 PathProgramCache]: Analyzing trace with hash 916903759, now seen corresponding path program 1 times [2023-11-29 04:20:51,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:51,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366240110] [2023-11-29 04:20:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:51,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:51,789 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:51,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28329447] [2023-11-29 04:20:51,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:51,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:51,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:51,791 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:51,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 04:20:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:51,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:20:51,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 04:20:52,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:52,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:52,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366240110] [2023-11-29 04:20:52,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:52,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28329447] [2023-11-29 04:20:52,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28329447] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:52,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:52,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 04:20:52,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098666814] [2023-11-29 04:20:52,145 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:52,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:20:52,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:52,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:20:52,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:20:52,147 INFO L87 Difference]: Start difference. First operand 758 states and 914 transitions. Second operand has 5 states, 4 states have (on average 36.0) internal successors, (144), 5 states have internal predecessors, (144), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:20:52,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:52,304 INFO L93 Difference]: Finished difference Result 823 states and 933 transitions. [2023-11-29 04:20:52,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:20:52,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 36.0) internal successors, (144), 5 states have internal predecessors, (144), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 201 [2023-11-29 04:20:52,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:52,306 INFO L225 Difference]: With dead ends: 823 [2023-11-29 04:20:52,306 INFO L226 Difference]: Without dead ends: 822 [2023-11-29 04:20:52,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:20:52,306 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 219 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:52,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 674 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:20:52,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2023-11-29 04:20:52,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 758. [2023-11-29 04:20:52,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 648 states have (on average 1.2638888888888888) internal successors, (819), 707 states have internal predecessors, (819), 47 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (47), 45 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:20:52,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 913 transitions. [2023-11-29 04:20:52,339 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 913 transitions. Word has length 201 [2023-11-29 04:20:52,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:52,339 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 913 transitions. [2023-11-29 04:20:52,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 36.0) internal successors, (144), 5 states have internal predecessors, (144), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 04:20:52,339 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 913 transitions. [2023-11-29 04:20:52,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 04:20:52,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:52,341 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-29 04:20:52,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 04:20:52,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2023-11-29 04:20:52,541 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:20:52,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:52,541 INFO L85 PathProgramCache]: Analyzing trace with hash 2113204364, now seen corresponding path program 2 times [2023-11-29 04:20:52,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:52,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369471356] [2023-11-29 04:20:52,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:52,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:52,552 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:52,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [964086669] [2023-11-29 04:20:52,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:20:52,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:52,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:52,553 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:52,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 04:20:52,659 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:20:52,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:20:52,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 04:20:52,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:53,425 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 04:20:53,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:20:59,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:59,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369471356] [2023-11-29 04:20:59,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:59,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964086669] [2023-11-29 04:20:59,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964086669] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:20:59,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:20:59,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:20:59,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604846782] [2023-11-29 04:20:59,327 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:20:59,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:20:59,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:59,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:20:59,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=86, Unknown=1, NotChecked=0, Total=132 [2023-11-29 04:20:59,329 INFO L87 Difference]: Start difference. First operand 758 states and 913 transitions. Second operand has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:21:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:02,469 INFO L93 Difference]: Finished difference Result 822 states and 932 transitions. [2023-11-29 04:21:02,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:21:02,469 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 208 [2023-11-29 04:21:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:02,471 INFO L225 Difference]: With dead ends: 822 [2023-11-29 04:21:02,471 INFO L226 Difference]: Without dead ends: 809 [2023-11-29 04:21:02,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=45, Invalid=86, Unknown=1, NotChecked=0, Total=132 [2023-11-29 04:21:02,472 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 208 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 2110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:02,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 639 Invalid, 2110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:21:02,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2023-11-29 04:21:02,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 766. [2023-11-29 04:21:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 656 states have (on average 1.2439024390243902) internal successors, (816), 714 states have internal predecessors, (816), 47 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:21:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 910 transitions. [2023-11-29 04:21:02,520 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 910 transitions. Word has length 208 [2023-11-29 04:21:02,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:02,520 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 910 transitions. [2023-11-29 04:21:02,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-29 04:21:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 910 transitions. [2023-11-29 04:21:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-29 04:21:02,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:02,522 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-29 04:21:02,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2023-11-29 04:21:02,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 04:21:02,723 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:21:02,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:02,723 INFO L85 PathProgramCache]: Analyzing trace with hash -730134290, now seen corresponding path program 2 times [2023-11-29 04:21:02,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:02,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932944258] [2023-11-29 04:21:02,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:02,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:02,734 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:21:02,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480495665] [2023-11-29 04:21:02,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:21:02,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:21:02,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:21:02,735 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:21:02,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 04:21:02,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:21:02,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:21:02,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 04:21:02,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 04:21:03,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:21:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 04:21:03,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:03,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932944258] [2023-11-29 04:21:03,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:21:03,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480495665] [2023-11-29 04:21:03,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480495665] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:21:03,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:21:03,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 04:21:03,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026634927] [2023-11-29 04:21:03,666 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:21:03,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:21:03,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:03,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:21:03,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:21:03,668 INFO L87 Difference]: Start difference. First operand 766 states and 910 transitions. Second operand has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 10 states have internal predecessors, (293), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-29 04:21:08,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:21:12,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:21:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:12,261 INFO L93 Difference]: Finished difference Result 827 states and 919 transitions. [2023-11-29 04:21:12,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:21:12,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 10 states have internal predecessors, (293), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 210 [2023-11-29 04:21:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:12,263 INFO L225 Difference]: With dead ends: 827 [2023-11-29 04:21:12,263 INFO L226 Difference]: Without dead ends: 826 [2023-11-29 04:21:12,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=107, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:21:12,264 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 669 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:12,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 597 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2023-11-29 04:21:12,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2023-11-29 04:21:12,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 766. [2023-11-29 04:21:12,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 656 states have (on average 1.2408536585365855) internal successors, (814), 714 states have internal predecessors, (814), 47 states have call successors, (47), 5 states have call predecessors, (47), 5 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-29 04:21:12,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 908 transitions. [2023-11-29 04:21:12,320 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 908 transitions. Word has length 210 [2023-11-29 04:21:12,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:12,320 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 908 transitions. [2023-11-29 04:21:12,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 32.55555555555556) internal successors, (293), 10 states have internal predecessors, (293), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-29 04:21:12,320 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 908 transitions. [2023-11-29 04:21:12,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-29 04:21:12,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:12,322 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2023-11-29 04:21:12,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 04:21:12,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 04:21:12,523 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:21:12,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:12,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1159326415, now seen corresponding path program 2 times [2023-11-29 04:21:12,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:12,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545378028] [2023-11-29 04:21:12,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:12,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:12,534 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:21:12,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1655028178] [2023-11-29 04:21:12,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:21:12,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:21:12,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:21:12,535 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:21:12,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 04:21:12,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:21:12,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:21:12,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 04:21:12,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 04:21:13,788 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:21:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 04:21:14,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:14,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545378028] [2023-11-29 04:21:14,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:21:14,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655028178] [2023-11-29 04:21:14,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655028178] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:21:14,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:21:14,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2023-11-29 04:21:14,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280665408] [2023-11-29 04:21:14,466 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:21:14,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 04:21:14,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:14,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 04:21:14,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:21:14,468 INFO L87 Difference]: Start difference. First operand 766 states and 908 transitions. Second operand has 18 states, 17 states have (on average 17.352941176470587) internal successors, (295), 18 states have internal predecessors, (295), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-29 04:21:24,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:21:29,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:21:32,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:21:38,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:21:39,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:39,276 INFO L93 Difference]: Finished difference Result 866 states and 952 transitions. [2023-11-29 04:21:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 04:21:39,277 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 17.352941176470587) internal successors, (295), 18 states have internal predecessors, (295), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 211 [2023-11-29 04:21:39,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:39,279 INFO L225 Difference]: With dead ends: 866 [2023-11-29 04:21:39,279 INFO L226 Difference]: Without dead ends: 733 [2023-11-29 04:21:39,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=321, Invalid=549, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:21:39,280 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 1793 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 3688 mSolverCounterSat, 172 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 3861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 3688 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:39,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 757 Invalid, 3861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 3688 Invalid, 1 Unknown, 0 Unchecked, 23.8s Time] [2023-11-29 04:21:39,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-11-29 04:21:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 658. [2023-11-29 04:21:39,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 556 states have (on average 1.2374100719424461) internal successors, (688), 612 states have internal predecessors, (688), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-29 04:21:39,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 770 transitions. [2023-11-29 04:21:39,315 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 770 transitions. Word has length 211 [2023-11-29 04:21:39,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:39,315 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 770 transitions. [2023-11-29 04:21:39,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 17.352941176470587) internal successors, (295), 18 states have internal predecessors, (295), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2023-11-29 04:21:39,315 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 770 transitions. [2023-11-29 04:21:39,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-11-29 04:21:39,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:39,317 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:39,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2023-11-29 04:21:39,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:21:39,517 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:21:39,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1341377715, now seen corresponding path program 2 times [2023-11-29 04:21:39,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:39,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104380918] [2023-11-29 04:21:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:39,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:39,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:21:39,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1035563879] [2023-11-29 04:21:39,535 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:21:39,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:21:39,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:21:39,536 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:21:39,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 04:21:39,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:21:39,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:21:39,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:21:39,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:40,591 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 04:21:40,592 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:21:45,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:45,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104380918] [2023-11-29 04:21:45,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:21:45,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035563879] [2023-11-29 04:21:45,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035563879] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:21:45,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:21:45,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:21:45,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783041272] [2023-11-29 04:21:45,182 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:21:45,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:21:45,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:45,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:21:45,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:21:45,184 INFO L87 Difference]: Start difference. First operand 658 states and 770 transitions. Second operand has 9 states, 8 states have (on average 22.5) internal successors, (180), 9 states have internal predecessors, (180), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 04:21:49,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:49,998 INFO L93 Difference]: Finished difference Result 658 states and 770 transitions. [2023-11-29 04:21:49,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:21:49,999 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 22.5) internal successors, (180), 9 states have internal predecessors, (180), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 257 [2023-11-29 04:21:49,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:50,001 INFO L225 Difference]: With dead ends: 658 [2023-11-29 04:21:50,001 INFO L226 Difference]: Without dead ends: 657 [2023-11-29 04:21:50,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:21:50,002 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 663 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:50,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 243 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 04:21:50,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2023-11-29 04:21:50,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2023-11-29 04:21:50,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 556 states have (on average 1.2302158273381294) internal successors, (684), 611 states have internal predecessors, (684), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-29 04:21:50,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 766 transitions. [2023-11-29 04:21:50,053 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 766 transitions. Word has length 257 [2023-11-29 04:21:50,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:50,054 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 766 transitions. [2023-11-29 04:21:50,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 22.5) internal successors, (180), 9 states have internal predecessors, (180), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 04:21:50,054 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 766 transitions. [2023-11-29 04:21:50,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-29 04:21:50,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:50,056 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:50,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 04:21:50,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:21:50,257 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:21:50,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:50,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1366963611, now seen corresponding path program 2 times [2023-11-29 04:21:50,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:50,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41603246] [2023-11-29 04:21:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:50,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:50,270 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:21:50,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957051226] [2023-11-29 04:21:50,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:21:50,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:21:50,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:21:50,272 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:21:50,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 04:21:50,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:21:50,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:21:50,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:21:50,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:50,802 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 04:21:50,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:21:51,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:51,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41603246] [2023-11-29 04:21:51,219 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:21:51,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957051226] [2023-11-29 04:21:51,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957051226] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:21:51,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:21:51,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:21:51,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210407488] [2023-11-29 04:21:51,220 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:21:51,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:21:51,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:51,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:21:51,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 04:21:51,222 INFO L87 Difference]: Start difference. First operand 657 states and 766 transitions. Second operand has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 8 states have internal predecessors, (181), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:21:52,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:52,292 INFO L93 Difference]: Finished difference Result 666 states and 766 transitions. [2023-11-29 04:21:52,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:21:52,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 8 states have internal predecessors, (181), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 258 [2023-11-29 04:21:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:52,294 INFO L225 Difference]: With dead ends: 666 [2023-11-29 04:21:52,294 INFO L226 Difference]: Without dead ends: 665 [2023-11-29 04:21:52,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:21:52,295 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 116 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:52,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 1007 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 04:21:52,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-11-29 04:21:52,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 657. [2023-11-29 04:21:52,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 556 states have (on average 1.2284172661870503) internal successors, (683), 611 states have internal predecessors, (683), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-29 04:21:52,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 765 transitions. [2023-11-29 04:21:52,328 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 765 transitions. Word has length 258 [2023-11-29 04:21:52,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:52,328 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 765 transitions. [2023-11-29 04:21:52,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 8 states have internal predecessors, (181), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 04:21:52,328 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 765 transitions. [2023-11-29 04:21:52,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-29 04:21:52,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:52,330 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:52,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 04:21:52,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 04:21:52,530 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:21:52,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:52,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1667150135, now seen corresponding path program 2 times [2023-11-29 04:21:52,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:52,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545403077] [2023-11-29 04:21:52,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:52,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:52,543 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:21:52,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923256912] [2023-11-29 04:21:52,543 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:21:52,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:21:52,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:21:52,545 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:21:52,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 04:21:52,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:21:52,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:21:52,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 04:21:52,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 04:21:53,717 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:21:56,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:56,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545403077] [2023-11-29 04:21:56,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:21:56,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923256912] [2023-11-29 04:21:56,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923256912] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:21:56,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:21:56,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:21:56,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586641231] [2023-11-29 04:21:56,498 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:21:56,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:21:56,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:56,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:21:56,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:21:56,500 INFO L87 Difference]: Start difference. First operand 657 states and 765 transitions. Second operand has 10 states, 9 states have (on average 20.444444444444443) internal successors, (184), 10 states have internal predecessors, (184), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 04:21:58,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:58,590 INFO L93 Difference]: Finished difference Result 657 states and 765 transitions. [2023-11-29 04:21:58,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:21:58,591 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 20.444444444444443) internal successors, (184), 10 states have internal predecessors, (184), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 261 [2023-11-29 04:21:58,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:58,592 INFO L225 Difference]: With dead ends: 657 [2023-11-29 04:21:58,592 INFO L226 Difference]: Without dead ends: 653 [2023-11-29 04:21:58,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:21:58,593 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 887 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:58,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 195 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:21:58,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2023-11-29 04:21:58,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 653. [2023-11-29 04:21:58,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 556 states have (on average 1.210431654676259) internal successors, (673), 607 states have internal predecessors, (673), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-29 04:21:58,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 755 transitions. [2023-11-29 04:21:58,628 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 755 transitions. Word has length 261 [2023-11-29 04:21:58,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:58,628 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 755 transitions. [2023-11-29 04:21:58,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 20.444444444444443) internal successors, (184), 10 states have internal predecessors, (184), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-29 04:21:58,628 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 755 transitions. [2023-11-29 04:21:58,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-11-29 04:21:58,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:58,630 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:58,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 04:21:58,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 04:21:58,831 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:21:58,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:58,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1795386942, now seen corresponding path program 2 times [2023-11-29 04:21:58,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:58,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119669678] [2023-11-29 04:21:58,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:58,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:58,845 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:21:58,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381680263] [2023-11-29 04:21:58,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:21:58,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:21:58,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:21:58,846 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:21:58,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 04:21:58,999 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:21:58,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:21:59,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:21:59,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:59,632 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 04:21:59,632 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:06,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:06,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119669678] [2023-11-29 04:22:06,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:22:06,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381680263] [2023-11-29 04:22:06,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381680263] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:22:06,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:22:06,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:22:06,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402055935] [2023-11-29 04:22:06,749 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:06,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:22:06,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:06,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:22:06,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:22:06,750 INFO L87 Difference]: Start difference. First operand 653 states and 755 transitions. Second operand has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 8 states have internal predecessors, (191), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 04:22:09,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:22:09,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:09,872 INFO L93 Difference]: Finished difference Result 659 states and 755 transitions. [2023-11-29 04:22:09,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:22:09,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 8 states have internal predecessors, (191), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 273 [2023-11-29 04:22:09,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:09,875 INFO L225 Difference]: With dead ends: 659 [2023-11-29 04:22:09,875 INFO L226 Difference]: Without dead ends: 658 [2023-11-29 04:22:09,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:22:09,876 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 34 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:09,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 696 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-29 04:22:09,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-11-29 04:22:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 653. [2023-11-29 04:22:09,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 556 states have (on average 1.20863309352518) internal successors, (672), 607 states have internal predecessors, (672), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-29 04:22:09,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 754 transitions. [2023-11-29 04:22:09,933 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 754 transitions. Word has length 273 [2023-11-29 04:22:09,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:09,933 INFO L495 AbstractCegarLoop]: Abstraction has 653 states and 754 transitions. [2023-11-29 04:22:09,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 27.285714285714285) internal successors, (191), 8 states have internal predecessors, (191), 4 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2023-11-29 04:22:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 754 transitions. [2023-11-29 04:22:09,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-11-29 04:22:09,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:09,935 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-11-29 04:22:09,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 04:22:10,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 04:22:10,136 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:22:10,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:10,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1318428644, now seen corresponding path program 1 times [2023-11-29 04:22:10,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:10,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255388446] [2023-11-29 04:22:10,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:10,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:10,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:22:10,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2127096152] [2023-11-29 04:22:10,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:10,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:10,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:10,161 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:22:10,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 04:22:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:22:10,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:22:10,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:10,949 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 04:22:10,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:11,436 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 04:22:11,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:11,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255388446] [2023-11-29 04:22:11,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:22:11,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127096152] [2023-11-29 04:22:11,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127096152] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:22:11,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:22:11,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 12 [2023-11-29 04:22:11,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206937352] [2023-11-29 04:22:11,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:11,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:22:11,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:11,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:22:11,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:22:11,439 INFO L87 Difference]: Start difference. First operand 653 states and 754 transitions. Second operand has 13 states, 12 states have (on average 32.583333333333336) internal successors, (391), 13 states have internal predecessors, (391), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 04:22:13,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:13,685 INFO L93 Difference]: Finished difference Result 789 states and 830 transitions. [2023-11-29 04:22:13,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:22:13,686 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 32.583333333333336) internal successors, (391), 13 states have internal predecessors, (391), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 274 [2023-11-29 04:22:13,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:13,688 INFO L225 Difference]: With dead ends: 789 [2023-11-29 04:22:13,688 INFO L226 Difference]: Without dead ends: 787 [2023-11-29 04:22:13,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 534 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:22:13,688 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 901 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:13,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 1251 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2026 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 04:22:13,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2023-11-29 04:22:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 652. [2023-11-29 04:22:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 556 states have (on average 1.2032374100719425) internal successors, (669), 606 states have internal predecessors, (669), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-29 04:22:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 751 transitions. [2023-11-29 04:22:13,727 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 751 transitions. Word has length 274 [2023-11-29 04:22:13,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:13,727 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 751 transitions. [2023-11-29 04:22:13,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 32.583333333333336) internal successors, (391), 13 states have internal predecessors, (391), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2023-11-29 04:22:13,727 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 751 transitions. [2023-11-29 04:22:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-11-29 04:22:13,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:13,729 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:22:13,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 04:22:13,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2023-11-29 04:22:13,929 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:22:13,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:13,930 INFO L85 PathProgramCache]: Analyzing trace with hash -599922697, now seen corresponding path program 2 times [2023-11-29 04:22:13,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:13,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143169056] [2023-11-29 04:22:13,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:13,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:13,947 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:22:13,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277582289] [2023-11-29 04:22:13,947 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:22:13,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:13,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:13,948 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:22:13,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 04:22:14,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:22:14,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:22:14,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 04:22:14,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 04:22:15,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:19,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:19,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143169056] [2023-11-29 04:22:19,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:22:19,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277582289] [2023-11-29 04:22:19,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277582289] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:22:19,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:22:19,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 04:22:19,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021931175] [2023-11-29 04:22:19,935 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:19,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 04:22:19,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:19,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 04:22:19,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:22:19,940 INFO L87 Difference]: Start difference. First operand 652 states and 751 transitions. Second operand has 11 states, 10 states have (on average 19.8) internal successors, (198), 11 states have internal predecessors, (198), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-29 04:22:22,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:22,752 INFO L93 Difference]: Finished difference Result 657 states and 751 transitions. [2023-11-29 04:22:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:22:22,752 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 19.8) internal successors, (198), 11 states have internal predecessors, (198), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 280 [2023-11-29 04:22:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:22,754 INFO L225 Difference]: With dead ends: 657 [2023-11-29 04:22:22,754 INFO L226 Difference]: Without dead ends: 654 [2023-11-29 04:22:22,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:22:22,755 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 37 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:22,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 601 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-29 04:22:22,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2023-11-29 04:22:22,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 652. [2023-11-29 04:22:22,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 556 states have (on average 1.1978417266187051) internal successors, (666), 606 states have internal predecessors, (666), 41 states have call successors, (41), 5 states have call predecessors, (41), 5 states have return successors, (41), 40 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-29 04:22:22,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 748 transitions. [2023-11-29 04:22:22,796 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 748 transitions. Word has length 280 [2023-11-29 04:22:22,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:22,796 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 748 transitions. [2023-11-29 04:22:22,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 19.8) internal successors, (198), 11 states have internal predecessors, (198), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-29 04:22:22,796 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 748 transitions. [2023-11-29 04:22:22,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-29 04:22:22,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:22,798 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:22:22,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2023-11-29 04:22:22,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2023-11-29 04:22:22,998 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr85ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:22:22,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:22,999 INFO L85 PathProgramCache]: Analyzing trace with hash 594185354, now seen corresponding path program 2 times [2023-11-29 04:22:22,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:22,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393253192] [2023-11-29 04:22:22,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:22,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:23,012 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:22:23,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007640328] [2023-11-29 04:22:23,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:22:23,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:23,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:23,014 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:22:23,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 04:22:23,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:22:23,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:22:23,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 04:22:23,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 04:22:23,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:29,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:29,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393253192] [2023-11-29 04:22:29,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:22:29,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007640328] [2023-11-29 04:22:29,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007640328] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:22:29,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:22:29,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 04:22:29,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85313183] [2023-11-29 04:22:29,449 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:29,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:22:29,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:29,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:22:29,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=144, Unknown=1, NotChecked=0, Total=182 [2023-11-29 04:22:29,451 INFO L87 Difference]: Start difference. First operand 652 states and 748 transitions. Second operand has 9 states, 8 states have (on average 25.375) internal successors, (203), 9 states have internal predecessors, (203), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-29 04:22:35,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:22:35,386 INFO L93 Difference]: Finished difference Result 652 states and 748 transitions. [2023-11-29 04:22:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 04:22:35,387 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 25.375) internal successors, (203), 9 states have internal predecessors, (203), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 285 [2023-11-29 04:22:35,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:22:35,388 INFO L225 Difference]: With dead ends: 652 [2023-11-29 04:22:35,388 INFO L226 Difference]: Without dead ends: 616 [2023-11-29 04:22:35,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=113, Invalid=266, Unknown=1, NotChecked=0, Total=380 [2023-11-29 04:22:35,389 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 611 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:22:35,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 326 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1101 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-29 04:22:35,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-11-29 04:22:35,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2023-11-29 04:22:35,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 524 states have (on average 1.1946564885496183) internal successors, (626), 572 states have internal predecessors, (626), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 04:22:35,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 704 transitions. [2023-11-29 04:22:35,426 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 704 transitions. Word has length 285 [2023-11-29 04:22:35,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:22:35,426 INFO L495 AbstractCegarLoop]: Abstraction has 616 states and 704 transitions. [2023-11-29 04:22:35,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 25.375) internal successors, (203), 9 states have internal predecessors, (203), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-29 04:22:35,426 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 704 transitions. [2023-11-29 04:22:35,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-11-29 04:22:35,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:22:35,428 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-11-29 04:22:35,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 04:22:35,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2023-11-29 04:22:35,628 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:22:35,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:22:35,629 INFO L85 PathProgramCache]: Analyzing trace with hash 775804040, now seen corresponding path program 3 times [2023-11-29 04:22:35,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:22:35,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179010174] [2023-11-29 04:22:35,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:22:35,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:22:35,642 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:22:35,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500328944] [2023-11-29 04:22:35,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:22:35,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:22:35,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:22:35,643 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:22:35,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 04:22:35,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 04:22:35,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:22:35,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:22:35,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:22:36,235 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 92 proven. 103 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2023-11-29 04:22:36,235 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:22:37,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:22:37,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179010174] [2023-11-29 04:22:37,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:22:37,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500328944] [2023-11-29 04:22:37,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500328944] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:22:37,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:22:37,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 04:22:37,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055393472] [2023-11-29 04:22:37,599 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:22:37,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:22:37,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:22:37,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:22:37,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:22:37,601 INFO L87 Difference]: Start difference. First operand 616 states and 704 transitions. Second operand has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 10 states have internal predecessors, (101), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:22:39,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:22:40,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:22:42,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:22:43,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:22:45,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:22:47,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:22:49,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:22:51,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:22:53,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:22:59,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:23:01,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:01,156 INFO L93 Difference]: Finished difference Result 678 states and 748 transitions. [2023-11-29 04:23:01,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:23:01,157 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 10 states have internal predecessors, (101), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 292 [2023-11-29 04:23:01,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:01,158 INFO L225 Difference]: With dead ends: 678 [2023-11-29 04:23:01,158 INFO L226 Difference]: Without dead ends: 672 [2023-11-29 04:23:01,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:23:01,159 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 1406 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 103 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:01,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 159 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 855 Invalid, 1 Unknown, 0 Unchecked, 23.3s Time] [2023-11-29 04:23:01,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2023-11-29 04:23:01,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 621. [2023-11-29 04:23:01,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 533 states have (on average 1.1782363977485928) internal successors, (628), 577 states have internal predecessors, (628), 39 states have call successors, (39), 5 states have call predecessors, (39), 5 states have return successors, (39), 38 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 04:23:01,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 706 transitions. [2023-11-29 04:23:01,207 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 706 transitions. Word has length 292 [2023-11-29 04:23:01,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:01,208 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 706 transitions. [2023-11-29 04:23:01,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.222222222222221) internal successors, (101), 10 states have internal predecessors, (101), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-29 04:23:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 706 transitions. [2023-11-29 04:23:01,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-11-29 04:23:01,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:01,210 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-11-29 04:23:01,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2023-11-29 04:23:01,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:01,411 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:23:01,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:01,411 INFO L85 PathProgramCache]: Analyzing trace with hash 812810414, now seen corresponding path program 1 times [2023-11-29 04:23:01,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:01,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754536778] [2023-11-29 04:23:01,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:01,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:01,426 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:01,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640740015] [2023-11-29 04:23:01,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:01,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:01,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:01,433 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:01,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 04:23:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:01,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:23:01,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:02,160 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 291 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 04:23:02,160 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:02,618 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 291 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 04:23:02,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:02,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754536778] [2023-11-29 04:23:02,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:02,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640740015] [2023-11-29 04:23:02,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640740015] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:23:02,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:23:02,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 04:23:02,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799315088] [2023-11-29 04:23:02,619 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:02,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 04:23:02,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:02,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 04:23:02,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:23:02,621 INFO L87 Difference]: Start difference. First operand 621 states and 706 transitions. Second operand has 14 states, 13 states have (on average 32.23076923076923) internal successors, (419), 14 states have internal predecessors, (419), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2023-11-29 04:23:07,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:07,443 INFO L93 Difference]: Finished difference Result 1180 states and 1313 transitions. [2023-11-29 04:23:07,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:23:07,443 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 32.23076923076923) internal successors, (419), 14 states have internal predecessors, (419), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 298 [2023-11-29 04:23:07,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:07,447 INFO L225 Difference]: With dead ends: 1180 [2023-11-29 04:23:07,447 INFO L226 Difference]: Without dead ends: 1169 [2023-11-29 04:23:07,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=295, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:23:07,448 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 1771 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1778 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:07,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1778 Valid, 711 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 04:23:07,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2023-11-29 04:23:07,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 868. [2023-11-29 04:23:07,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 767 states have (on average 1.1694915254237288) internal successors, (897), 804 states have internal predecessors, (897), 59 states have call successors, (59), 5 states have call predecessors, (59), 5 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 04:23:07,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1015 transitions. [2023-11-29 04:23:07,554 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1015 transitions. Word has length 298 [2023-11-29 04:23:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:07,555 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 1015 transitions. [2023-11-29 04:23:07,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 32.23076923076923) internal successors, (419), 14 states have internal predecessors, (419), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2023-11-29 04:23:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1015 transitions. [2023-11-29 04:23:07,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-11-29 04:23:07,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:07,557 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2023-11-29 04:23:07,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2023-11-29 04:23:07,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:07,758 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:23:07,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash -572680839, now seen corresponding path program 1 times [2023-11-29 04:23:07,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:07,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322289268] [2023-11-29 04:23:07,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:07,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:07,778 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:07,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932351084] [2023-11-29 04:23:07,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:07,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:07,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:07,779 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:07,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 04:23:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:07,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 04:23:07,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 0 proven. 294 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 04:23:09,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:23:13,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:13,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322289268] [2023-11-29 04:23:13,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:13,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932351084] [2023-11-29 04:23:13,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932351084] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:23:13,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:23:13,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 04:23:13,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127752574] [2023-11-29 04:23:13,901 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:23:13,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:23:13,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:13,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:23:13,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=167, Unknown=1, NotChecked=0, Total=240 [2023-11-29 04:23:13,903 INFO L87 Difference]: Start difference. First operand 868 states and 1015 transitions. Second operand has 12 states, 11 states have (on average 19.272727272727273) internal successors, (212), 12 states have internal predecessors, (212), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 04:23:16,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:16,225 INFO L93 Difference]: Finished difference Result 908 states and 1032 transitions. [2023-11-29 04:23:16,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 04:23:16,225 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 19.272727272727273) internal successors, (212), 12 states have internal predecessors, (212), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 299 [2023-11-29 04:23:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:16,227 INFO L225 Difference]: With dead ends: 908 [2023-11-29 04:23:16,228 INFO L226 Difference]: Without dead ends: 871 [2023-11-29 04:23:16,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=72, Invalid=167, Unknown=1, NotChecked=0, Total=240 [2023-11-29 04:23:16,229 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 124 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 2411 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1289 SdHoareTripleChecker+Invalid, 2418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:16,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 1289 Invalid, 2418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2411 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 04:23:16,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-11-29 04:23:16,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 854. [2023-11-29 04:23:16,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 755 states have (on average 1.1642384105960264) internal successors, (879), 791 states have internal predecessors, (879), 57 states have call successors, (57), 5 states have call predecessors, (57), 5 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-29 04:23:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 993 transitions. [2023-11-29 04:23:16,322 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 993 transitions. Word has length 299 [2023-11-29 04:23:16,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:16,323 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 993 transitions. [2023-11-29 04:23:16,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 19.272727272727273) internal successors, (212), 12 states have internal predecessors, (212), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 04:23:16,323 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 993 transitions. [2023-11-29 04:23:16,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2023-11-29 04:23:16,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:16,325 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:16,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 04:23:16,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:16,525 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:23:16,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:16,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1792985247, now seen corresponding path program 3 times [2023-11-29 04:23:16,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:16,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692756557] [2023-11-29 04:23:16,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:16,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:16,540 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:16,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851657703] [2023-11-29 04:23:16,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:23:16,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:16,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:16,542 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:16,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 04:23:16,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 04:23:16,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:23:16,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-29 04:23:16,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:21,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 04:23:21,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:25:15,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 04:25:15,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:25:15,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692756557] [2023-11-29 04:25:15,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:25:15,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851657703] [2023-11-29 04:25:15,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851657703] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:25:15,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:25:15,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 28 [2023-11-29 04:25:15,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329620880] [2023-11-29 04:25:15,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:25:15,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 04:25:15,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:25:15,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 04:25:15,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2023-11-29 04:25:15,827 INFO L87 Difference]: Start difference. First operand 854 states and 993 transitions. Second operand has 29 states, 28 states have (on average 17.035714285714285) internal successors, (477), 29 states have internal predecessors, (477), 10 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2023-11-29 04:25:20,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:25:31,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:25:34,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:25:56,347 WARN L293 SmtUtils]: Spent 6.76s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 04:26:01,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:26:03,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:26:06,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:26:23,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:26:32,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:26:39,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:26:48,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:26:49,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:26:49,238 INFO L93 Difference]: Finished difference Result 940 states and 1033 transitions. [2023-11-29 04:26:49,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 04:26:49,238 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 17.035714285714285) internal successors, (477), 29 states have internal predecessors, (477), 10 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) Word has length 342 [2023-11-29 04:26:49,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:26:49,240 INFO L225 Difference]: With dead ends: 940 [2023-11-29 04:26:49,240 INFO L226 Difference]: Without dead ends: 939 [2023-11-29 04:26:49,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 34.4s TimeCoverageRelationStatistics Valid=489, Invalid=1317, Unknown=0, NotChecked=0, Total=1806 [2023-11-29 04:26:49,240 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 2112 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 5497 mSolverCounterSat, 140 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 5638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 5497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:26:49,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2117 Valid, 801 Invalid, 5638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 5497 Invalid, 1 Unknown, 0 Unchecked, 71.7s Time] [2023-11-29 04:26:49,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2023-11-29 04:26:49,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 863. [2023-11-29 04:26:49,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 763 states have (on average 1.161205766710354) internal successors, (886), 799 states have internal predecessors, (886), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-29 04:26:49,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1002 transitions. [2023-11-29 04:26:49,346 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1002 transitions. Word has length 342 [2023-11-29 04:26:49,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:26:49,347 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1002 transitions. [2023-11-29 04:26:49,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 17.035714285714285) internal successors, (477), 29 states have internal predecessors, (477), 10 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 10 states have call predecessors, (42), 10 states have call successors, (42) [2023-11-29 04:26:49,347 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1002 transitions. [2023-11-29 04:26:49,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-11-29 04:26:49,349 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:26:49,349 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:26:49,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 04:26:49,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-29 04:26:49,549 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:26:49,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:26:49,550 INFO L85 PathProgramCache]: Analyzing trace with hash -776930717, now seen corresponding path program 2 times [2023-11-29 04:26:49,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:26:49,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318930162] [2023-11-29 04:26:49,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:26:49,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:26:49,572 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:26:49,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [648126564] [2023-11-29 04:26:49,572 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:26:49,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:26:49,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:26:49,573 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:26:49,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 04:26:49,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:26:49,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:26:49,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 04:26:49,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:26:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 04:26:50,831 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:26:52,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 04:26:52,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:26:52,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318930162] [2023-11-29 04:26:52,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:26:52,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648126564] [2023-11-29 04:26:52,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648126564] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:26:52,151 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:26:52,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2023-11-29 04:26:52,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671835152] [2023-11-29 04:26:52,152 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:26:52,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 04:26:52,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:26:52,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 04:26:52,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2023-11-29 04:26:52,154 INFO L87 Difference]: Start difference. First operand 863 states and 1002 transitions. Second operand has 20 states, 19 states have (on average 25.31578947368421) internal successors, (481), 20 states have internal predecessors, (481), 8 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) [2023-11-29 04:27:03,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:27:11,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:27:14,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:27:17,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:17,447 INFO L93 Difference]: Finished difference Result 1002 states and 1117 transitions. [2023-11-29 04:27:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:27:17,447 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 25.31578947368421) internal successors, (481), 20 states have internal predecessors, (481), 8 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) Word has length 344 [2023-11-29 04:27:17,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:17,448 INFO L225 Difference]: With dead ends: 1002 [2023-11-29 04:27:17,448 INFO L226 Difference]: Without dead ends: 995 [2023-11-29 04:27:17,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=219, Invalid=537, Unknown=0, NotChecked=0, Total=756 [2023-11-29 04:27:17,449 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 846 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 3088 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 3088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:17,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1454 Invalid, 3145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 3088 Invalid, 0 Unknown, 0 Unchecked, 23.2s Time] [2023-11-29 04:27:17,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2023-11-29 04:27:17,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 865. [2023-11-29 04:27:17,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 765 states have (on average 1.1503267973856208) internal successors, (880), 801 states have internal predecessors, (880), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-29 04:27:17,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 996 transitions. [2023-11-29 04:27:17,530 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 996 transitions. Word has length 344 [2023-11-29 04:27:17,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:17,530 INFO L495 AbstractCegarLoop]: Abstraction has 865 states and 996 transitions. [2023-11-29 04:27:17,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 25.31578947368421) internal successors, (481), 20 states have internal predecessors, (481), 8 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) [2023-11-29 04:27:17,530 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 996 transitions. [2023-11-29 04:27:17,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2023-11-29 04:27:17,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:17,532 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:17,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 04:27:17,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-29 04:27:17,733 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:27:17,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:17,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1338447422, now seen corresponding path program 3 times [2023-11-29 04:27:17,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:17,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602482056] [2023-11-29 04:27:17,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:17,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:17,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:17,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521464729] [2023-11-29 04:27:17,746 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:27:17,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:17,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:17,746 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:17,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 04:27:18,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 04:27:18,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:18,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:27:18,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:20,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 244 proven. 3 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2023-11-29 04:27:20,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:22,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 60 proven. 187 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2023-11-29 04:27:22,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:22,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602482056] [2023-11-29 04:27:22,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:22,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521464729] [2023-11-29 04:27:22,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521464729] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:22,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:22,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2023-11-29 04:27:22,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453157265] [2023-11-29 04:27:22,090 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:22,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:27:22,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:22,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:27:22,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:27:22,091 INFO L87 Difference]: Start difference. First operand 865 states and 996 transitions. Second operand has 16 states, 15 states have (on average 18.933333333333334) internal successors, (284), 15 states have internal predecessors, (284), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 04:27:24,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:24,512 INFO L93 Difference]: Finished difference Result 915 states and 1029 transitions. [2023-11-29 04:27:24,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:27:24,512 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.933333333333334) internal successors, (284), 15 states have internal predecessors, (284), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) Word has length 357 [2023-11-29 04:27:24,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:24,513 INFO L225 Difference]: With dead ends: 915 [2023-11-29 04:27:24,513 INFO L226 Difference]: Without dead ends: 914 [2023-11-29 04:27:24,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 698 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:27:24,514 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 1362 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:24,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 362 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 04:27:24,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2023-11-29 04:27:24,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 864. [2023-11-29 04:27:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 765 states have (on average 1.1437908496732025) internal successors, (875), 800 states have internal predecessors, (875), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-29 04:27:24,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 991 transitions. [2023-11-29 04:27:24,587 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 991 transitions. Word has length 357 [2023-11-29 04:27:24,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:24,588 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 991 transitions. [2023-11-29 04:27:24,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.933333333333334) internal successors, (284), 15 states have internal predecessors, (284), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 7 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 04:27:24,588 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 991 transitions. [2023-11-29 04:27:24,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2023-11-29 04:27:24,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:24,590 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:27:24,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 04:27:24,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 04:27:24,790 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:27:24,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:24,790 INFO L85 PathProgramCache]: Analyzing trace with hash 34811891, now seen corresponding path program 3 times [2023-11-29 04:27:24,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:24,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630718461] [2023-11-29 04:27:24,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:24,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:24,803 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:24,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1864181378] [2023-11-29 04:27:24,803 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:27:24,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:24,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:24,804 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:24,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 04:27:24,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 04:27:24,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:24,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 04:27:24,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:27,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 229 proven. 18 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2023-11-29 04:27:27,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:39,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 229 proven. 18 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2023-11-29 04:27:39,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:39,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630718461] [2023-11-29 04:27:39,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:39,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864181378] [2023-11-29 04:27:39,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864181378] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:27:39,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:27:39,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 04:27:39,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936446844] [2023-11-29 04:27:39,924 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:39,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:27:39,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:39,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:27:39,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:27:39,926 INFO L87 Difference]: Start difference. First operand 864 states and 991 transitions. Second operand has 17 states, 16 states have (on average 18.625) internal successors, (298), 17 states have internal predecessors, (298), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 6 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 04:27:50,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:27:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:27:55,028 INFO L93 Difference]: Finished difference Result 914 states and 1024 transitions. [2023-11-29 04:27:55,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:27:55,029 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 18.625) internal successors, (298), 17 states have internal predecessors, (298), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 6 states have call predecessors, (24), 8 states have call successors, (24) Word has length 364 [2023-11-29 04:27:55,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:27:55,030 INFO L225 Difference]: With dead ends: 914 [2023-11-29 04:27:55,030 INFO L226 Difference]: Without dead ends: 911 [2023-11-29 04:27:55,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 713 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:27:55,030 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 763 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 1965 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:27:55,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 434 Invalid, 2023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1965 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-11-29 04:27:55,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2023-11-29 04:27:55,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 864. [2023-11-29 04:27:55,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 765 states have (on average 1.1359477124183006) internal successors, (869), 800 states have internal predecessors, (869), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-29 04:27:55,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 985 transitions. [2023-11-29 04:27:55,097 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 985 transitions. Word has length 364 [2023-11-29 04:27:55,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:27:55,097 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 985 transitions. [2023-11-29 04:27:55,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 18.625) internal successors, (298), 17 states have internal predecessors, (298), 8 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (24), 6 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-29 04:27:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 985 transitions. [2023-11-29 04:27:55,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-11-29 04:27:55,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:27:55,099 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-29 04:27:55,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 04:27:55,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 04:27:55,300 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:27:55,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:27:55,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1314620186, now seen corresponding path program 3 times [2023-11-29 04:27:55,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:27:55,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282787272] [2023-11-29 04:27:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:27:55,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:27:55,320 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:27:55,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [973309241] [2023-11-29 04:27:55,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 04:27:55,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:27:55,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:27:55,321 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:27:55,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 04:27:55,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 04:27:55,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:27:55,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:27:55,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:27:55,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 66 proven. 140 refuted. 0 times theorem prover too weak. 1306 trivial. 0 not checked. [2023-11-29 04:27:55,713 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:27:55,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:27:55,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282787272] [2023-11-29 04:27:55,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:27:55,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973309241] [2023-11-29 04:27:55,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973309241] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:27:55,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:27:55,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 04:27:55,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899477750] [2023-11-29 04:27:55,874 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:27:55,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 04:27:55,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:27:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 04:27:55,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:27:55,875 INFO L87 Difference]: Start difference. First operand 864 states and 985 transitions. Second operand has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:28:03,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:07,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 04:28:07,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:07,183 INFO L93 Difference]: Finished difference Result 907 states and 1014 transitions. [2023-11-29 04:28:07,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:28:07,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 378 [2023-11-29 04:28:07,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:07,184 INFO L225 Difference]: With dead ends: 907 [2023-11-29 04:28:07,185 INFO L226 Difference]: Without dead ends: 906 [2023-11-29 04:28:07,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:28:07,185 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 665 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 41 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:07,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 485 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 623 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2023-11-29 04:28:07,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2023-11-29 04:28:07,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 863. [2023-11-29 04:28:07,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 765 states have (on average 1.130718954248366) internal successors, (865), 799 states have internal predecessors, (865), 58 states have call successors, (58), 5 states have call predecessors, (58), 5 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-11-29 04:28:07,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 981 transitions. [2023-11-29 04:28:07,277 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 981 transitions. Word has length 378 [2023-11-29 04:28:07,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:07,277 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 981 transitions. [2023-11-29 04:28:07,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 8 states have internal predecessors, (101), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 04:28:07,278 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 981 transitions. [2023-11-29 04:28:07,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-11-29 04:28:07,279 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:07,280 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2023-11-29 04:28:07,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2023-11-29 04:28:07,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:07,480 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:28:07,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:07,481 INFO L85 PathProgramCache]: Analyzing trace with hash -609487875, now seen corresponding path program 2 times [2023-11-29 04:28:07,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:07,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713546200] [2023-11-29 04:28:07,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:07,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:07,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:07,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1496407] [2023-11-29 04:28:07,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:28:07,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:07,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:07,495 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:07,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 04:28:07,597 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:28:07,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:28:07,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 04:28:07,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1532 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-29 04:28:08,891 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:18,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:18,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713546200] [2023-11-29 04:28:18,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:18,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496407] [2023-11-29 04:28:18,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496407] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:18,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:18,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 04:28:18,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664473850] [2023-11-29 04:28:18,037 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:18,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 04:28:18,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:18,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 04:28:18,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=303, Unknown=2, NotChecked=0, Total=420 [2023-11-29 04:28:18,038 INFO L87 Difference]: Start difference. First operand 863 states and 981 transitions. Second operand has 16 states, 15 states have (on average 18.066666666666666) internal successors, (271), 16 states have internal predecessors, (271), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-29 04:28:22,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:22,613 INFO L93 Difference]: Finished difference Result 976 states and 1088 transitions. [2023-11-29 04:28:22,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 04:28:22,613 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.066666666666666) internal successors, (271), 16 states have internal predecessors, (271), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 383 [2023-11-29 04:28:22,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:22,614 INFO L225 Difference]: With dead ends: 976 [2023-11-29 04:28:22,614 INFO L226 Difference]: Without dead ends: 940 [2023-11-29 04:28:22,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=125, Invalid=335, Unknown=2, NotChecked=0, Total=462 [2023-11-29 04:28:22,615 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 416 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 3879 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 3901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:22,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1953 Invalid, 3901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3879 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 04:28:22,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2023-11-29 04:28:22,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 921. [2023-11-29 04:28:22,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 820 states have (on average 1.1304878048780487) internal successors, (927), 854 states have internal predecessors, (927), 61 states have call successors, (61), 5 states have call predecessors, (61), 5 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-29 04:28:22,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1049 transitions. [2023-11-29 04:28:22,692 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1049 transitions. Word has length 383 [2023-11-29 04:28:22,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:22,693 INFO L495 AbstractCegarLoop]: Abstraction has 921 states and 1049 transitions. [2023-11-29 04:28:22,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.066666666666666) internal successors, (271), 16 states have internal predecessors, (271), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-29 04:28:22,693 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1049 transitions. [2023-11-29 04:28:22,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2023-11-29 04:28:22,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:22,695 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:28:22,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2023-11-29 04:28:22,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:22,895 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr97ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:28:22,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:22,895 INFO L85 PathProgramCache]: Analyzing trace with hash -935059705, now seen corresponding path program 1 times [2023-11-29 04:28:22,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:22,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909389605] [2023-11-29 04:28:22,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:22,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:22,908 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:22,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799519857] [2023-11-29 04:28:22,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:22,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:22,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:22,909 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:22,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 04:28:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:28:23,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 04:28:23,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:24,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1372 backedges. 184 proven. 176 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-29 04:28:24,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:24,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:24,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909389605] [2023-11-29 04:28:24,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:24,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799519857] [2023-11-29 04:28:24,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799519857] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:28:24,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:28:24,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 04:28:24,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461354477] [2023-11-29 04:28:24,086 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:24,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:28:24,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:24,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:28:24,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:28:24,087 INFO L87 Difference]: Start difference. First operand 921 states and 1049 transitions. Second operand has 13 states, 12 states have (on average 22.833333333333332) internal successors, (274), 13 states have internal predecessors, (274), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-29 04:28:27,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:28:27,528 INFO L93 Difference]: Finished difference Result 923 states and 1049 transitions. [2023-11-29 04:28:27,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 04:28:27,529 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 22.833333333333332) internal successors, (274), 13 states have internal predecessors, (274), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 386 [2023-11-29 04:28:27,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:28:27,530 INFO L225 Difference]: With dead ends: 923 [2023-11-29 04:28:27,530 INFO L226 Difference]: Without dead ends: 857 [2023-11-29 04:28:27,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:28:27,531 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 459 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:28:27,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 946 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 04:28:27,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2023-11-29 04:28:27,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 782. [2023-11-29 04:28:27,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 695 states have (on average 1.087769784172662) internal successors, (756), 722 states have internal predecessors, (756), 54 states have call successors, (54), 5 states have call predecessors, (54), 5 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 04:28:27,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 864 transitions. [2023-11-29 04:28:27,605 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 864 transitions. Word has length 386 [2023-11-29 04:28:27,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:28:27,605 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 864 transitions. [2023-11-29 04:28:27,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 22.833333333333332) internal successors, (274), 13 states have internal predecessors, (274), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2023-11-29 04:28:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 864 transitions. [2023-11-29 04:28:27,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2023-11-29 04:28:27,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:28:27,607 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1] [2023-11-29 04:28:27,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2023-11-29 04:28:27,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:27,808 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2023-11-29 04:28:27,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:28:27,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1437903213, now seen corresponding path program 2 times [2023-11-29 04:28:27,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:28:27,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466181652] [2023-11-29 04:28:27,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:28:27,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:28:27,821 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:28:27,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [496838908] [2023-11-29 04:28:27,821 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:28:27,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:28:27,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:28:27,822 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:28:27,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7ab8260-a52e-4a99-8d4a-fadc07e45961/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 04:28:27,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 04:28:27,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:28:27,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 04:28:27,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:28:28,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-29 04:28:28,211 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:28:28,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2023-11-29 04:28:28,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:28:28,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466181652] [2023-11-29 04:28:28,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:28:28,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496838908] [2023-11-29 04:28:28,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496838908] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:28:28,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 04:28:28,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 04:28:28,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786255925] [2023-11-29 04:28:28,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 04:28:28,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:28:28,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:28:28,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:28:28,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:28:28,747 INFO L87 Difference]: Start difference. First operand 782 states and 864 transitions. Second operand has 12 states, 11 states have (on average 50.63636363636363) internal successors, (557), 12 states have internal predecessors, (557), 10 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 10 states have call predecessors, (48), 10 states have call successors, (48) [2023-11-29 04:28:35,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:28:39,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:28:43,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:28:47,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:28:51,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:28:55,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:28:59,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:03,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:07,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:11,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:15,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:19,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:23,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:27,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:31,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:35,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:39,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:43,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:47,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:51,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:55,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:29:59,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:30:03,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:30:07,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:30:11,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:30:15,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:30:20,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:30:24,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 04:30:28,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []