./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.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_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/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_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/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_410d387c-010e-4fc8-9f7b-f100070279c9/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 d3c61dee0c4c48de96844df391dc470a843cae078bb175116ed4a6b789669168 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:13:56,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:13:57,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 00:13:57,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:13:57,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:13:57,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:13:57,044 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:13:57,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:13:57,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:13:57,046 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:13:57,047 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:13:57,047 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:13:57,048 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:13:57,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:13:57,049 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:13:57,050 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:13:57,050 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:13:57,051 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:13:57,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:13:57,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:13:57,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:13:57,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:13:57,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:13:57,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:13:57,055 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:13:57,055 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:13:57,056 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:13:57,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:13:57,056 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:13:57,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:13:57,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:13:57,058 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:13:57,058 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:13:57,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:13:57,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:13:57,059 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:13:57,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:13:57,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:13:57,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:13:57,060 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:13:57,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:13:57,061 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:13:57,061 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:13:57,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:13:57,061 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_410d387c-010e-4fc8-9f7b-f100070279c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3c61dee0c4c48de96844df391dc470a843cae078bb175116ed4a6b789669168 [2023-11-29 00:13:57,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:13:57,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:13:57,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:13:57,340 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:13:57,341 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:13:57,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.c [2023-11-29 00:14:00,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:14:00,399 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:14:00,399 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_valuebound20.c [2023-11-29 00:14:00,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/data/ffbcb5b38/08cac43252d842ada8bf749ea3c5f59b/FLAG0c2d5637e [2023-11-29 00:14:00,421 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/data/ffbcb5b38/08cac43252d842ada8bf749ea3c5f59b [2023-11-29 00:14:00,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:14:00,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:14:00,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:14:00,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:14:00,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:14:00,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7783675c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00, skipping insertion in model container [2023-11-29 00:14:00,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,460 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:14:00,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:14:00,664 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:14:00,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:14:00,711 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:14:00,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00 WrapperNode [2023-11-29 00:14:00,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:14:00,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:14:00,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:14:00,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:14:00,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,767 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 192 [2023-11-29 00:14:00,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:14:00,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:14:00,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:14:00,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:14:00,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,786 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,802 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 00:14:00,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,817 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:14:00,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:14:00,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:14:00,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:14:00,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (1/1) ... [2023-11-29 00:14:00,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:14:00,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:00,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:14:00,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:14:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:14:00,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:14:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:14:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:14:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 00:14:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 00:14:00,991 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:14:00,993 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:14:02,117 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:14:02,150 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:14:02,151 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 00:14:02,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:14:02 BoogieIcfgContainer [2023-11-29 00:14:02,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:14:02,155 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:14:02,155 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:14:02,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:14:02,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:14:00" (1/3) ... [2023-11-29 00:14:02,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed8c65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:14:02, skipping insertion in model container [2023-11-29 00:14:02,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:14:00" (2/3) ... [2023-11-29 00:14:02,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed8c65a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:14:02, skipping insertion in model container [2023-11-29 00:14:02,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:14:02" (3/3) ... [2023-11-29 00:14:02,163 INFO L112 eAbstractionObserver]: Analyzing ICFG cohencu-ll_valuebound20.c [2023-11-29 00:14:02,185 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:14:02,185 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 138 error locations. [2023-11-29 00:14:02,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:14:02,281 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;@19b08729, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:14:02,282 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2023-11-29 00:14:02,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 298 states, 147 states have (on average 1.9727891156462585) internal successors, (290), 285 states have internal predecessors, (290), 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 00:14:02,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 00:14:02,291 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:02,291 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 00:14:02,292 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:02,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:02,297 INFO L85 PathProgramCache]: Analyzing trace with hash 355713825, now seen corresponding path program 1 times [2023-11-29 00:14:02,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:02,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877572509] [2023-11-29 00:14:02,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:02,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:02,455 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 00:14:02,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:02,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877572509] [2023-11-29 00:14:02,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877572509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:02,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:02,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:14:02,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195768848] [2023-11-29 00:14:02,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:02,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 00:14:02,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:02,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 00:14:02,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:14:02,502 INFO L87 Difference]: Start difference. First operand has 298 states, 147 states have (on average 1.9727891156462585) internal successors, (290), 285 states have internal predecessors, (290), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:02,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:02,571 INFO L93 Difference]: Finished difference Result 587 states and 632 transitions. [2023-11-29 00:14:02,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 00:14:02,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 00:14:02,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:02,588 INFO L225 Difference]: With dead ends: 587 [2023-11-29 00:14:02,588 INFO L226 Difference]: Without dead ends: 288 [2023-11-29 00:14:02,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 00:14:02,598 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:02,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 299 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:14:02,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2023-11-29 00:14:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2023-11-29 00:14:02,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 146 states have (on average 1.8972602739726028) internal successors, (277), 276 states have internal predecessors, (277), 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 00:14:02,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 297 transitions. [2023-11-29 00:14:02,671 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 297 transitions. Word has length 5 [2023-11-29 00:14:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:02,671 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 297 transitions. [2023-11-29 00:14:02,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:02,672 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 297 transitions. [2023-11-29 00:14:02,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 00:14:02,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:02,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 00:14:02,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:14:02,673 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:02,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:02,674 INFO L85 PathProgramCache]: Analyzing trace with hash 355773348, now seen corresponding path program 1 times [2023-11-29 00:14:02,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:02,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528474112] [2023-11-29 00:14:02,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:02,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:02,746 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 00:14:02,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:02,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528474112] [2023-11-29 00:14:02,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528474112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:02,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:02,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:14:02,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535954784] [2023-11-29 00:14:02,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:02,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:02,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:02,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:02,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:02,750 INFO L87 Difference]: Start difference. First operand 288 states and 297 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:02,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:02,894 INFO L93 Difference]: Finished difference Result 557 states and 576 transitions. [2023-11-29 00:14:02,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:02,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-29 00:14:02,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:02,899 INFO L225 Difference]: With dead ends: 557 [2023-11-29 00:14:02,899 INFO L226 Difference]: Without dead ends: 537 [2023-11-29 00:14:02,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:02,901 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 237 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:02,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 519 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:14:02,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2023-11-29 00:14:02,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 347. [2023-11-29 00:14:02,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 200 states have (on average 1.795) internal successors, (359), 330 states have internal predecessors, (359), 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 00:14:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 389 transitions. [2023-11-29 00:14:02,932 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 389 transitions. Word has length 5 [2023-11-29 00:14:02,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:02,933 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 389 transitions. [2023-11-29 00:14:02,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:14:02,933 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 389 transitions. [2023-11-29 00:14:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-29 00:14:02,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:02,934 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] [2023-11-29 00:14:02,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:14:02,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:02,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:02,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1772025106, now seen corresponding path program 1 times [2023-11-29 00:14:02,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:02,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689005846] [2023-11-29 00:14:02,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:02,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:02,956 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:02,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991664971] [2023-11-29 00:14:02,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:02,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:02,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:02,961 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:02,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:14:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:03,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:14:03,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:03,198 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 00:14:03,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:03,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:03,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689005846] [2023-11-29 00:14:03,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:03,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991664971] [2023-11-29 00:14:03,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991664971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:03,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:03,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:14:03,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279211716] [2023-11-29 00:14:03,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:03,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:03,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:03,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:03,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:03,203 INFO L87 Difference]: Start difference. First operand 347 states and 389 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 00:14:04,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:04,950 INFO L93 Difference]: Finished difference Result 549 states and 568 transitions. [2023-11-29 00:14:04,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:04,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 38 [2023-11-29 00:14:04,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:04,954 INFO L225 Difference]: With dead ends: 549 [2023-11-29 00:14:04,955 INFO L226 Difference]: Without dead ends: 512 [2023-11-29 00:14:04,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 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 00:14:04,957 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 193 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:04,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 244 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 00:14:04,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-29 00:14:04,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 434. [2023-11-29 00:14:04,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.7163120567375887) internal successors, (484), 412 states have internal predecessors, (484), 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 00:14:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 524 transitions. [2023-11-29 00:14:04,983 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 524 transitions. Word has length 38 [2023-11-29 00:14:04,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:04,983 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 524 transitions. [2023-11-29 00:14:04,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 00:14:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 524 transitions. [2023-11-29 00:14:04,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 00:14:04,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:04,985 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 00:14:04,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:14:05,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:05,190 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:05,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:05,191 INFO L85 PathProgramCache]: Analyzing trace with hash 901796653, now seen corresponding path program 1 times [2023-11-29 00:14:05,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:05,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807689795] [2023-11-29 00:14:05,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:05,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:05,203 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:05,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1677536273] [2023-11-29 00:14:05,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:05,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:05,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:05,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:05,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:14:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:05,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:14:05,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:05,377 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 00:14:05,377 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:05,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:05,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807689795] [2023-11-29 00:14:05,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:05,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677536273] [2023-11-29 00:14:05,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677536273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:05,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:05,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:14:05,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828717951] [2023-11-29 00:14:05,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:05,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:05,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:05,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:05,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:05,382 INFO L87 Difference]: Start difference. First operand 434 states and 524 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 00:14:06,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:06,579 INFO L93 Difference]: Finished difference Result 512 states and 531 transitions. [2023-11-29 00:14:06,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:06,580 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 00:14:06,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:06,582 INFO L225 Difference]: With dead ends: 512 [2023-11-29 00:14:06,582 INFO L226 Difference]: Without dead ends: 493 [2023-11-29 00:14:06,583 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 00:14:06,584 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 172 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:06,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 265 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 00:14:06,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-11-29 00:14:06,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 434. [2023-11-29 00:14:06,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.648936170212766) internal successors, (465), 412 states have internal predecessors, (465), 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 00:14:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 505 transitions. [2023-11-29 00:14:06,605 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 505 transitions. Word has length 39 [2023-11-29 00:14:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:06,605 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 505 transitions. [2023-11-29 00:14:06,605 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 00:14:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 505 transitions. [2023-11-29 00:14:06,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-29 00:14:06,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:06,607 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 00:14:06,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:14:06,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:06,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:06,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:06,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2109074736, now seen corresponding path program 1 times [2023-11-29 00:14:06,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:06,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492881914] [2023-11-29 00:14:06,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:06,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:06,825 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:06,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [794997490] [2023-11-29 00:14:06,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:06,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:06,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:06,827 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:06,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:14:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:06,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:14:06,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:06,939 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 00:14:06,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:06,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:06,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492881914] [2023-11-29 00:14:06,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:06,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794997490] [2023-11-29 00:14:06,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794997490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:06,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:06,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:14:06,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224985271] [2023-11-29 00:14:06,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:06,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:06,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:06,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:06,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:06,943 INFO L87 Difference]: Start difference. First operand 434 states and 505 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 00:14:07,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:07,795 INFO L93 Difference]: Finished difference Result 488 states and 512 transitions. [2023-11-29 00:14:07,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:07,795 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 00:14:07,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:07,799 INFO L225 Difference]: With dead ends: 488 [2023-11-29 00:14:07,799 INFO L226 Difference]: Without dead ends: 483 [2023-11-29 00:14:07,799 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 00:14:07,800 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 164 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:07,800 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 406 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 00:14:07,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-29 00:14:07,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 434. [2023-11-29 00:14:07,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.6312056737588652) internal successors, (460), 412 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 00:14:07,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 500 transitions. [2023-11-29 00:14:07,815 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 500 transitions. Word has length 40 [2023-11-29 00:14:07,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:07,816 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 500 transitions. [2023-11-29 00:14:07,816 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 00:14:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 500 transitions. [2023-11-29 00:14:07,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 00:14:07,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:07,818 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 00:14:07,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:14:08,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:08,024 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:08,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:08,024 INFO L85 PathProgramCache]: Analyzing trace with hash -956807281, now seen corresponding path program 1 times [2023-11-29 00:14:08,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:08,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825427374] [2023-11-29 00:14:08,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:08,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:08,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:08,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875633478] [2023-11-29 00:14:08,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:08,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:08,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:08,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:08,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:14:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:08,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:14:08,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:08,124 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 00:14:08,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:08,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:08,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825427374] [2023-11-29 00:14:08,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:08,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875633478] [2023-11-29 00:14:08,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875633478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:08,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:08,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:14:08,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590793608] [2023-11-29 00:14:08,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:08,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:08,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:08,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:08,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:08,128 INFO L87 Difference]: Start difference. First operand 434 states and 500 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 00:14:08,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:08,840 INFO L93 Difference]: Finished difference Result 488 states and 507 transitions. [2023-11-29 00:14:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:08,840 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 00:14:08,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:08,844 INFO L225 Difference]: With dead ends: 488 [2023-11-29 00:14:08,844 INFO L226 Difference]: Without dead ends: 483 [2023-11-29 00:14:08,844 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 00:14:08,845 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 158 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:08,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 411 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:14:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2023-11-29 00:14:08,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 434. [2023-11-29 00:14:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.6134751773049645) internal successors, (455), 412 states have internal predecessors, (455), 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 00:14:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 495 transitions. [2023-11-29 00:14:08,860 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 495 transitions. Word has length 41 [2023-11-29 00:14:08,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:08,860 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 495 transitions. [2023-11-29 00:14:08,861 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 00:14:08,861 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 495 transitions. [2023-11-29 00:14:08,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 00:14:08,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:08,862 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 00:14:08,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:14:09,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:09,065 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:09,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:09,065 INFO L85 PathProgramCache]: Analyzing trace with hash 403745458, now seen corresponding path program 1 times [2023-11-29 00:14:09,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:09,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707036961] [2023-11-29 00:14:09,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:09,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:09,077 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:09,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334671450] [2023-11-29 00:14:09,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:09,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:09,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:09,079 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:09,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 00:14:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:09,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:14:09,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:09,175 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 00:14:09,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:09,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:09,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707036961] [2023-11-29 00:14:09,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:09,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334671450] [2023-11-29 00:14:09,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334671450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:09,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:09,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:09,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133178015] [2023-11-29 00:14:09,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:09,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:14:09,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:09,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:14:09,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:09,178 INFO L87 Difference]: Start difference. First operand 434 states and 495 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 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 00:14:09,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:09,821 INFO L93 Difference]: Finished difference Result 483 states and 502 transitions. [2023-11-29 00:14:09,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:14:09,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 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 00:14:09,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:09,824 INFO L225 Difference]: With dead ends: 483 [2023-11-29 00:14:09,824 INFO L226 Difference]: Without dead ends: 481 [2023-11-29 00:14:09,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:09,825 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 329 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:09,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 352 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:14:09,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-11-29 00:14:09,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 434. [2023-11-29 00:14:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.6063829787234043) internal successors, (453), 412 states have internal predecessors, (453), 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 00:14:09,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 493 transitions. [2023-11-29 00:14:09,843 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 493 transitions. Word has length 42 [2023-11-29 00:14:09,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:09,853 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 493 transitions. [2023-11-29 00:14:09,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 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 00:14:09,853 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 493 transitions. [2023-11-29 00:14:09,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 00:14:09,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:09,855 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 00:14:09,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 00:14:10,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:10,061 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:10,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:10,062 INFO L85 PathProgramCache]: Analyzing trace with hash -368792591, now seen corresponding path program 1 times [2023-11-29 00:14:10,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:10,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825101533] [2023-11-29 00:14:10,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:10,077 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:10,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [19228443] [2023-11-29 00:14:10,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:10,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:10,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:10,079 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:10,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 00:14:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:10,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:14:10,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:10,199 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 00:14:10,200 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:10,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:10,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825101533] [2023-11-29 00:14:10,200 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:10,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19228443] [2023-11-29 00:14:10,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19228443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:10,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:10,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:10,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874517915] [2023-11-29 00:14:10,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:10,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:14:10,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:10,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:14:10,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:10,203 INFO L87 Difference]: Start difference. First operand 434 states and 493 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 00:14:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:10,939 INFO L93 Difference]: Finished difference Result 481 states and 500 transitions. [2023-11-29 00:14:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:14:10,940 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 00:14:10,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:10,944 INFO L225 Difference]: With dead ends: 481 [2023-11-29 00:14:10,944 INFO L226 Difference]: Without dead ends: 479 [2023-11-29 00:14:10,944 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 00:14:10,945 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 324 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:10,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 354 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 00:14:10,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2023-11-29 00:14:10,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 434. [2023-11-29 00:14:10,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 282 states have (on average 1.599290780141844) internal successors, (451), 412 states have internal predecessors, (451), 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 00:14:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 491 transitions. [2023-11-29 00:14:10,969 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 491 transitions. Word has length 43 [2023-11-29 00:14:10,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:10,969 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 491 transitions. [2023-11-29 00:14:10,970 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 00:14:10,970 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 491 transitions. [2023-11-29 00:14:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-29 00:14:10,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:10,971 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] [2023-11-29 00:14:10,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 00:14:11,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 00:14:11,174 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:11,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:11,174 INFO L85 PathProgramCache]: Analyzing trace with hash -173634954, now seen corresponding path program 1 times [2023-11-29 00:14:11,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:11,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093035041] [2023-11-29 00:14:11,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:11,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:11,189 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:11,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938243188] [2023-11-29 00:14:11,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:11,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:11,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:11,191 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:11,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 00:14:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:11,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:14:11,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:11,462 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 00:14:11,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:11,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:11,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093035041] [2023-11-29 00:14:11,463 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:11,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938243188] [2023-11-29 00:14:11,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938243188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:11,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:11,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:14:11,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708818104] [2023-11-29 00:14:11,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:11,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:14:11,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:11,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:14:11,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:14:11,466 INFO L87 Difference]: Start difference. First operand 434 states and 491 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:14:12,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:12,004 INFO L93 Difference]: Finished difference Result 479 states and 498 transitions. [2023-11-29 00:14:12,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:12,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2023-11-29 00:14:12,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:12,008 INFO L225 Difference]: With dead ends: 479 [2023-11-29 00:14:12,008 INFO L226 Difference]: Without dead ends: 464 [2023-11-29 00:14:12,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 00:14:12,009 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 134 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:12,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 248 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:14:12,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-29 00:14:12,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 437. [2023-11-29 00:14:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 285 states have (on average 1.550877192982456) internal successors, (442), 415 states have internal predecessors, (442), 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 00:14:12,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 482 transitions. [2023-11-29 00:14:12,030 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 482 transitions. Word has length 46 [2023-11-29 00:14:12,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:12,031 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 482 transitions. [2023-11-29 00:14:12,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:14:12,031 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 482 transitions. [2023-11-29 00:14:12,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-29 00:14:12,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:12,032 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 00:14:12,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 00:14:12,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 00:14:12,233 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:12,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:12,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1087716171, now seen corresponding path program 1 times [2023-11-29 00:14:12,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:12,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211793140] [2023-11-29 00:14:12,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:12,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:12,245 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:12,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [220035277] [2023-11-29 00:14:12,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:12,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:12,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:12,246 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:12,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 00:14:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:12,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:14:12,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:13,043 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 00:14:13,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:13,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:13,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211793140] [2023-11-29 00:14:13,043 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:13,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220035277] [2023-11-29 00:14:13,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220035277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:13,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:13,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:13,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572706371] [2023-11-29 00:14:13,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:13,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:14:13,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:13,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:14:13,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:13,046 INFO L87 Difference]: Start difference. First operand 437 states and 482 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:14:15,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:15,121 INFO L93 Difference]: Finished difference Result 464 states and 483 transitions. [2023-11-29 00:14:15,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:15,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2023-11-29 00:14:15,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:15,125 INFO L225 Difference]: With dead ends: 464 [2023-11-29 00:14:15,125 INFO L226 Difference]: Without dead ends: 461 [2023-11-29 00:14:15,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 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 00:14:15,127 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 151 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:15,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 370 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 00:14:15,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-11-29 00:14:15,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 437. [2023-11-29 00:14:15,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 285 states have (on average 1.5403508771929824) internal successors, (439), 415 states have internal predecessors, (439), 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 00:14:15,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 479 transitions. [2023-11-29 00:14:15,148 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 479 transitions. Word has length 47 [2023-11-29 00:14:15,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:15,148 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 479 transitions. [2023-11-29 00:14:15,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 00:14:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 479 transitions. [2023-11-29 00:14:15,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 00:14:15,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:15,150 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] [2023-11-29 00:14:15,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 00:14:15,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 00:14:15,357 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:15,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:15,357 INFO L85 PathProgramCache]: Analyzing trace with hash -296575623, now seen corresponding path program 1 times [2023-11-29 00:14:15,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:15,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594852748] [2023-11-29 00:14:15,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:15,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:15,371 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:15,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987595293] [2023-11-29 00:14:15,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:15,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:15,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:15,373 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:15,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 00:14:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:15,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:14:15,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:15,691 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 00:14:15,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:15,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:15,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594852748] [2023-11-29 00:14:15,692 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:15,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987595293] [2023-11-29 00:14:15,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987595293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:15,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:15,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:15,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329530276] [2023-11-29 00:14:15,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:15,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:14:15,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:15,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:14:15,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:15,694 INFO L87 Difference]: Start difference. First operand 437 states and 479 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 00:14:17,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:17,199 INFO L93 Difference]: Finished difference Result 461 states and 480 transitions. [2023-11-29 00:14:17,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:14:17,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 51 [2023-11-29 00:14:17,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:17,202 INFO L225 Difference]: With dead ends: 461 [2023-11-29 00:14:17,202 INFO L226 Difference]: Without dead ends: 427 [2023-11-29 00:14:17,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 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 00:14:17,203 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 143 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:17,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 332 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 00:14:17,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-29 00:14:17,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 408. [2023-11-29 00:14:17,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 258 states have (on average 1.5813953488372092) internal successors, (408), 388 states have internal predecessors, (408), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 00:14:17,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 444 transitions. [2023-11-29 00:14:17,221 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 444 transitions. Word has length 51 [2023-11-29 00:14:17,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:17,221 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 444 transitions. [2023-11-29 00:14:17,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 00:14:17,222 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 444 transitions. [2023-11-29 00:14:17,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 00:14:17,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:17,223 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] [2023-11-29 00:14:17,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 00:14:17,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 00:14:17,424 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:17,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:17,424 INFO L85 PathProgramCache]: Analyzing trace with hash 124206066, now seen corresponding path program 1 times [2023-11-29 00:14:17,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:17,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888862132] [2023-11-29 00:14:17,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:17,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:17,435 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:17,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2082003988] [2023-11-29 00:14:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:17,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:17,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:17,437 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:17,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 00:14:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:17,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:14:17,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:17,745 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 00:14:17,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:17,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:17,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888862132] [2023-11-29 00:14:17,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:17,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082003988] [2023-11-29 00:14:17,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082003988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:17,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:17,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:17,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217622670] [2023-11-29 00:14:17,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:17,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:14:17,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:17,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:14:17,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:17,748 INFO L87 Difference]: Start difference. First operand 408 states and 444 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 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 00:14:17,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:17,862 INFO L93 Difference]: Finished difference Result 408 states and 444 transitions. [2023-11-29 00:14:17,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:14:17,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 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 86 [2023-11-29 00:14:17,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:17,865 INFO L225 Difference]: With dead ends: 408 [2023-11-29 00:14:17,866 INFO L226 Difference]: Without dead ends: 404 [2023-11-29 00:14:17,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 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 00:14:17,867 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 216 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:17,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 508 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:14:17,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-11-29 00:14:17,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2023-11-29 00:14:17,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 258 states have (on average 1.550387596899225) internal successors, (400), 384 states have internal predecessors, (400), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 00:14:17,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 436 transitions. [2023-11-29 00:14:17,878 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 436 transitions. Word has length 86 [2023-11-29 00:14:17,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:17,878 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 436 transitions. [2023-11-29 00:14:17,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 states have internal predecessors, (59), 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 00:14:17,878 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 436 transitions. [2023-11-29 00:14:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 00:14:17,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:17,880 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] [2023-11-29 00:14:17,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 00:14:18,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 00:14:18,084 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:18,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:18,085 INFO L85 PathProgramCache]: Analyzing trace with hash -85276979, now seen corresponding path program 1 times [2023-11-29 00:14:18,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:18,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488195827] [2023-11-29 00:14:18,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:18,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:18,094 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:18,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508929111] [2023-11-29 00:14:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:18,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:18,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:18,096 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:18,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 00:14:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:18,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:14:18,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:18,269 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 00:14:18,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:18,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:18,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488195827] [2023-11-29 00:14:18,270 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:18,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508929111] [2023-11-29 00:14:18,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508929111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:18,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:18,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 00:14:18,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173185771] [2023-11-29 00:14:18,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:18,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:14:18,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:18,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:14:18,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:14:18,272 INFO L87 Difference]: Start difference. First operand 404 states and 436 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:18,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:18,397 INFO L93 Difference]: Finished difference Result 419 states and 436 transitions. [2023-11-29 00:14:18,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:14:18,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 86 [2023-11-29 00:14:18,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:18,401 INFO L225 Difference]: With dead ends: 419 [2023-11-29 00:14:18,401 INFO L226 Difference]: Without dead ends: 411 [2023-11-29 00:14:18,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 83 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 00:14:18,402 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 322 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:18,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 496 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:14:18,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2023-11-29 00:14:18,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 396. [2023-11-29 00:14:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 258 states have (on average 1.5193798449612403) internal successors, (392), 376 states have internal predecessors, (392), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 00:14:18,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 428 transitions. [2023-11-29 00:14:18,415 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 428 transitions. Word has length 86 [2023-11-29 00:14:18,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:18,415 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 428 transitions. [2023-11-29 00:14:18,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 428 transitions. [2023-11-29 00:14:18,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 00:14:18,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:18,417 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 00:14:18,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 00:14:18,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:18,618 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:18,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:18,618 INFO L85 PathProgramCache]: Analyzing trace with hash -897049036, now seen corresponding path program 1 times [2023-11-29 00:14:18,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:18,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478846965] [2023-11-29 00:14:18,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:18,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:18,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:18,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975074119] [2023-11-29 00:14:18,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:18,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:18,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:18,632 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:18,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 00:14:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:18,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:14:18,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-29 00:14:19,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:19,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:19,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478846965] [2023-11-29 00:14:19,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:19,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975074119] [2023-11-29 00:14:19,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975074119] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:19,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:19,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:14:19,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725090008] [2023-11-29 00:14:19,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:19,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:14:19,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:19,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:14:19,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:14:19,008 INFO L87 Difference]: Start difference. First operand 396 states and 428 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 00:14:19,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:19,204 INFO L93 Difference]: Finished difference Result 415 states and 431 transitions. [2023-11-29 00:14:19,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:14:19,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 88 [2023-11-29 00:14:19,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:19,207 INFO L225 Difference]: With dead ends: 415 [2023-11-29 00:14:19,207 INFO L226 Difference]: Without dead ends: 337 [2023-11-29 00:14:19,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:14:19,208 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 263 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:19,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 650 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:14:19,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-11-29 00:14:19,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2023-11-29 00:14:19,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 202 states have (on average 1.5891089108910892) internal successors, (321), 320 states have internal predecessors, (321), 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 00:14:19,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 351 transitions. [2023-11-29 00:14:19,218 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 351 transitions. Word has length 88 [2023-11-29 00:14:19,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:19,218 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 351 transitions. [2023-11-29 00:14:19,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 00:14:19,219 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 351 transitions. [2023-11-29 00:14:19,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-29 00:14:19,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:19,220 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] [2023-11-29 00:14:19,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 00:14:19,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 00:14:19,420 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:19,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:19,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1651380999, now seen corresponding path program 1 times [2023-11-29 00:14:19,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:19,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144282916] [2023-11-29 00:14:19,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:19,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:19,433 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:19,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824703949] [2023-11-29 00:14:19,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:19,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:19,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:19,435 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:19,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 00:14:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:19,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 00:14:19,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:19,583 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 00:14:19,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:14:19,690 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 00:14:19,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:19,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144282916] [2023-11-29 00:14:19,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:19,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824703949] [2023-11-29 00:14:19,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824703949] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:14:19,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:14:19,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 00:14:19,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095112927] [2023-11-29 00:14:19,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:14:19,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:14:19,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:19,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:14:19,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:14:19,694 INFO L87 Difference]: Start difference. First operand 337 states and 351 transitions. Second operand has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 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 00:14:19,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:19,845 INFO L93 Difference]: Finished difference Result 605 states and 637 transitions. [2023-11-29 00:14:19,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:14:19,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 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 87 [2023-11-29 00:14:19,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:19,849 INFO L225 Difference]: With dead ends: 605 [2023-11-29 00:14:19,849 INFO L226 Difference]: Without dead ends: 597 [2023-11-29 00:14:19,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 168 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 00:14:19,850 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 632 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:19,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 729 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:14:19,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2023-11-29 00:14:19,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 397. [2023-11-29 00:14:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 263 states have (on average 1.5741444866920151) internal successors, (414), 375 states have internal predecessors, (414), 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 00:14:19,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 454 transitions. [2023-11-29 00:14:19,866 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 454 transitions. Word has length 87 [2023-11-29 00:14:19,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:19,866 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 454 transitions. [2023-11-29 00:14:19,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.0) internal successors, (125), 6 states have internal predecessors, (125), 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 00:14:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 454 transitions. [2023-11-29 00:14:19,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 00:14:19,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:19,868 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1] [2023-11-29 00:14:19,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 00:14:20,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 00:14:20,069 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:20,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:20,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1640076562, now seen corresponding path program 1 times [2023-11-29 00:14:20,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:20,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307359628] [2023-11-29 00:14:20,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:20,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:20,079 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:20,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [478889768] [2023-11-29 00:14:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:20,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:20,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:20,080 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:20,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 00:14:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:20,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:14:20,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:20,212 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 00:14:20,212 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:14:20,353 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 00:14:20,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:20,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307359628] [2023-11-29 00:14:20,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:20,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478889768] [2023-11-29 00:14:20,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478889768] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:14:20,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:14:20,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 00:14:20,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116162730] [2023-11-29 00:14:20,354 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:14:20,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:14:20,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:20,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:14:20,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:14:20,355 INFO L87 Difference]: Start difference. First operand 397 states and 454 transitions. Second operand has 6 states, 5 states have (on average 27.4) internal successors, (137), 6 states have internal predecessors, (137), 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 00:14:20,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:20,549 INFO L93 Difference]: Finished difference Result 603 states and 633 transitions. [2023-11-29 00:14:20,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:14:20,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.4) internal successors, (137), 6 states have internal predecessors, (137), 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 98 [2023-11-29 00:14:20,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:20,553 INFO L225 Difference]: With dead ends: 603 [2023-11-29 00:14:20,553 INFO L226 Difference]: Without dead ends: 598 [2023-11-29 00:14:20,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 190 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 00:14:20,554 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 669 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:20,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 816 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:14:20,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2023-11-29 00:14:20,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 402. [2023-11-29 00:14:20,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 271 states have (on average 1.5276752767527675) internal successors, (414), 379 states have internal predecessors, (414), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 00:14:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 456 transitions. [2023-11-29 00:14:20,572 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 456 transitions. Word has length 98 [2023-11-29 00:14:20,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:20,573 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 456 transitions. [2023-11-29 00:14:20,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.4) internal successors, (137), 6 states have internal predecessors, (137), 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 00:14:20,573 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 456 transitions. [2023-11-29 00:14:20,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 00:14:20,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:20,575 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:14:20,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-29 00:14:20,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 00:14:20,777 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:20,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:20,777 INFO L85 PathProgramCache]: Analyzing trace with hash -483346203, now seen corresponding path program 1 times [2023-11-29 00:14:20,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:20,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871667882] [2023-11-29 00:14:20,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:20,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:20,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:20,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906523951] [2023-11-29 00:14:20,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:20,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:20,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:20,789 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:20,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 00:14:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:20,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:14:20,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 00:14:21,103 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:14:21,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:21,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871667882] [2023-11-29 00:14:21,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:21,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906523951] [2023-11-29 00:14:21,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906523951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:14:21,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:14:21,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:14:21,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58389633] [2023-11-29 00:14:21,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:14:21,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:14:21,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:21,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:14:21,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:14:21,106 INFO L87 Difference]: Start difference. First operand 402 states and 456 transitions. Second operand has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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 00:14:22,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:22,629 INFO L93 Difference]: Finished difference Result 402 states and 456 transitions. [2023-11-29 00:14:22,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:14:22,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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 119 [2023-11-29 00:14:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:22,631 INFO L225 Difference]: With dead ends: 402 [2023-11-29 00:14:22,631 INFO L226 Difference]: Without dead ends: 385 [2023-11-29 00:14:22,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:14:22,632 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 388 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:22,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 240 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 00:14:22,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2023-11-29 00:14:22,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2023-11-29 00:14:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 271 states have (on average 1.4391143911439115) internal successors, (390), 362 states have internal predecessors, (390), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 00:14:22,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 432 transitions. [2023-11-29 00:14:22,652 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 432 transitions. Word has length 119 [2023-11-29 00:14:22,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:22,653 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 432 transitions. [2023-11-29 00:14:22,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.5) internal successors, (82), 5 states have internal predecessors, (82), 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 00:14:22,653 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 432 transitions. [2023-11-29 00:14:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 00:14:22,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:22,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:14:22,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 00:14:22,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 00:14:22,856 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:22,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:22,856 INFO L85 PathProgramCache]: Analyzing trace with hash -2098830314, now seen corresponding path program 1 times [2023-11-29 00:14:22,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:22,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375071348] [2023-11-29 00:14:22,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:22,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:22,866 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:22,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1029725264] [2023-11-29 00:14:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:22,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:22,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:22,867 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:22,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 00:14:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:22,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:14:22,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:23,214 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 00:14:23,215 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:14:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 00:14:23,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:23,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375071348] [2023-11-29 00:14:23,523 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:23,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029725264] [2023-11-29 00:14:23,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029725264] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:14:23,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:14:23,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 00:14:23,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764001878] [2023-11-29 00:14:23,524 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:14:23,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:14:23,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:23,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:14:23,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:14:23,526 INFO L87 Difference]: Start difference. First operand 385 states and 432 transitions. Second operand has 8 states, 7 states have (on average 23.0) internal successors, (161), 8 states have internal predecessors, (161), 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 00:14:25,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:25,587 INFO L93 Difference]: Finished difference Result 574 states and 603 transitions. [2023-11-29 00:14:25,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:14:25,588 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.0) internal successors, (161), 8 states have internal predecessors, (161), 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 120 [2023-11-29 00:14:25,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:25,592 INFO L225 Difference]: With dead ends: 574 [2023-11-29 00:14:25,592 INFO L226 Difference]: Without dead ends: 543 [2023-11-29 00:14:25,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:14:25,593 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 735 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:25,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 491 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 00:14:25,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2023-11-29 00:14:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 479. [2023-11-29 00:14:25,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 359 states have (on average 1.4122562674094707) internal successors, (507), 449 states have internal predecessors, (507), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:14:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 563 transitions. [2023-11-29 00:14:25,608 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 563 transitions. Word has length 120 [2023-11-29 00:14:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:25,609 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 563 transitions. [2023-11-29 00:14:25,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.0) internal successors, (161), 8 states have internal predecessors, (161), 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 00:14:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 563 transitions. [2023-11-29 00:14:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 00:14:25,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:25,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:14:25,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 00:14:25,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 00:14:25,811 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:25,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:25,811 INFO L85 PathProgramCache]: Analyzing trace with hash -639230201, now seen corresponding path program 1 times [2023-11-29 00:14:25,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:25,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225638366] [2023-11-29 00:14:25,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:25,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:25,824 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:25,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804207341] [2023-11-29 00:14:25,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:25,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:25,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:25,825 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:25,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 00:14:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:25,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:14:25,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:26,156 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 00:14:26,156 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:14:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 00:14:26,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:26,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225638366] [2023-11-29 00:14:26,305 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:26,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804207341] [2023-11-29 00:14:26,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804207341] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:14:26,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:14:26,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 00:14:26,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963274740] [2023-11-29 00:14:26,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:14:26,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:14:26,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:26,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:14:26,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:14:26,308 INFO L87 Difference]: Start difference. First operand 479 states and 563 transitions. Second operand has 6 states, 5 states have (on average 32.6) internal successors, (163), 6 states have internal predecessors, (163), 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 00:14:27,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:27,799 INFO L93 Difference]: Finished difference Result 535 states and 570 transitions. [2023-11-29 00:14:27,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:14:27,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 32.6) internal successors, (163), 6 states have internal predecessors, (163), 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 121 [2023-11-29 00:14:27,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:27,802 INFO L225 Difference]: With dead ends: 535 [2023-11-29 00:14:27,802 INFO L226 Difference]: Without dead ends: 530 [2023-11-29 00:14:27,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 236 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 00:14:27,803 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 427 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:27,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 553 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 00:14:27,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2023-11-29 00:14:27,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 475. [2023-11-29 00:14:27,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 359 states have (on average 1.3871866295264623) internal successors, (498), 445 states have internal predecessors, (498), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:14:27,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 554 transitions. [2023-11-29 00:14:27,828 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 554 transitions. Word has length 121 [2023-11-29 00:14:27,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:27,829 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 554 transitions. [2023-11-29 00:14:27,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.6) internal successors, (163), 6 states have internal predecessors, (163), 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 00:14:27,829 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 554 transitions. [2023-11-29 00:14:27,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 00:14:27,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:27,831 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:14:27,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 00:14:28,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:28,033 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:28,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:28,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1658700344, now seen corresponding path program 1 times [2023-11-29 00:14:28,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:28,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335436566] [2023-11-29 00:14:28,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:28,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:28,043 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:28,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771829520] [2023-11-29 00:14:28,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:28,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:28,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:28,045 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:28,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 00:14:28,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:28,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:14:28,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:28,306 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 00:14:28,307 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:14:28,447 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 00:14:28,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:28,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335436566] [2023-11-29 00:14:28,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:28,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771829520] [2023-11-29 00:14:28,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771829520] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:14:28,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:14:28,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 00:14:28,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788320770] [2023-11-29 00:14:28,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:14:28,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:14:28,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:28,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:14:28,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:14:28,450 INFO L87 Difference]: Start difference. First operand 475 states and 554 transitions. Second operand has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 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 00:14:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:32,047 INFO L93 Difference]: Finished difference Result 528 states and 561 transitions. [2023-11-29 00:14:32,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:14:32,048 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 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 122 [2023-11-29 00:14:32,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:32,050 INFO L225 Difference]: With dead ends: 528 [2023-11-29 00:14:32,050 INFO L226 Difference]: Without dead ends: 523 [2023-11-29 00:14:32,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 238 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 00:14:32,051 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 578 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:32,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 378 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-29 00:14:32,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2023-11-29 00:14:32,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 471. [2023-11-29 00:14:32,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 359 states have (on average 1.3621169916434541) internal successors, (489), 441 states have internal predecessors, (489), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:14:32,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 545 transitions. [2023-11-29 00:14:32,068 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 545 transitions. Word has length 122 [2023-11-29 00:14:32,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:32,069 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 545 transitions. [2023-11-29 00:14:32,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 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 00:14:32,069 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 545 transitions. [2023-11-29 00:14:32,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 00:14:32,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:32,070 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] [2023-11-29 00:14:32,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 00:14:32,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:32,271 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:32,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:32,271 INFO L85 PathProgramCache]: Analyzing trace with hash -119896791, now seen corresponding path program 1 times [2023-11-29 00:14:32,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:32,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855751789] [2023-11-29 00:14:32,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:32,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:32,280 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:32,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1375185441] [2023-11-29 00:14:32,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:32,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:32,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:32,281 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:32,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 00:14:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:32,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:14:32,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:32,706 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 00:14:32,706 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:14:45,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:45,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855751789] [2023-11-29 00:14:45,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:45,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375185441] [2023-11-29 00:14:45,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375185441] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:14:45,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:14:45,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 00:14:45,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120690909] [2023-11-29 00:14:45,243 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:14:45,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:14:45,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:14:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=54, Unknown=3, NotChecked=0, Total=90 [2023-11-29 00:14:45,244 INFO L87 Difference]: Start difference. First operand 471 states and 545 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 00:14:47,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:47,733 INFO L93 Difference]: Finished difference Result 523 states and 552 transitions. [2023-11-29 00:14:47,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:14:47,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 123 [2023-11-29 00:14:47,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:47,736 INFO L225 Difference]: With dead ends: 523 [2023-11-29 00:14:47,736 INFO L226 Difference]: Without dead ends: 513 [2023-11-29 00:14:47,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=33, Invalid=54, Unknown=3, NotChecked=0, Total=90 [2023-11-29 00:14:47,737 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 150 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 1025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:47,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 368 Invalid, 1025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 00:14:47,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-11-29 00:14:47,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 474. [2023-11-29 00:14:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 362 states have (on average 1.339779005524862) internal successors, (485), 444 states have internal predecessors, (485), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:14:47,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 541 transitions. [2023-11-29 00:14:47,759 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 541 transitions. Word has length 123 [2023-11-29 00:14:47,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:47,760 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 541 transitions. [2023-11-29 00:14:47,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 00:14:47,760 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 541 transitions. [2023-11-29 00:14:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 00:14:47,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:47,761 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] [2023-11-29 00:14:47,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 00:14:47,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:47,965 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:47,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:47,965 INFO L85 PathProgramCache]: Analyzing trace with hash 578166874, now seen corresponding path program 1 times [2023-11-29 00:14:47,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:47,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681361959] [2023-11-29 00:14:47,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:47,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:47,982 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:47,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1778093712] [2023-11-29 00:14:47,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:47,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:47,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:47,984 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:47,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 00:14:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:48,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:14:48,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:48,392 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 00:14:48,392 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:14:48,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:48,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681361959] [2023-11-29 00:14:48,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:48,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778093712] [2023-11-29 00:14:48,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778093712] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:14:48,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:14:48,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 00:14:48,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587376408] [2023-11-29 00:14:48,522 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:14:48,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:14:48,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:48,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:14:48,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:14:48,523 INFO L87 Difference]: Start difference. First operand 474 states and 541 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 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 00:14:50,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:50,874 INFO L93 Difference]: Finished difference Result 513 states and 542 transitions. [2023-11-29 00:14:50,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:14:50,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 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 00:14:50,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:50,877 INFO L225 Difference]: With dead ends: 513 [2023-11-29 00:14:50,877 INFO L226 Difference]: Without dead ends: 511 [2023-11-29 00:14:50,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:14:50,878 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 148 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:50,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 432 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 00:14:50,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2023-11-29 00:14:50,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 474. [2023-11-29 00:14:50,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 362 states have (on average 1.3342541436464088) internal successors, (483), 444 states have internal predecessors, (483), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:14:50,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 539 transitions. [2023-11-29 00:14:50,899 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 539 transitions. Word has length 124 [2023-11-29 00:14:50,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:50,900 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 539 transitions. [2023-11-29 00:14:50,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 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 00:14:50,900 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 539 transitions. [2023-11-29 00:14:50,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-29 00:14:50,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:50,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:14:50,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 00:14:51,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:51,101 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:51,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:51,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1081484130, now seen corresponding path program 1 times [2023-11-29 00:14:51,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:51,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069871542] [2023-11-29 00:14:51,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:51,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:51,112 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:51,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [76172635] [2023-11-29 00:14:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:51,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:51,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:51,114 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:51,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 00:14:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:51,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:14:51,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:52,103 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 00:14:52,103 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:14:52,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:14:52,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069871542] [2023-11-29 00:14:52,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:14:52,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76172635] [2023-11-29 00:14:52,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76172635] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:14:52,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:14:52,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 00:14:52,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460935678] [2023-11-29 00:14:52,359 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:14:52,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:14:52,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:14:52,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:14:52,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:14:52,361 INFO L87 Difference]: Start difference. First operand 474 states and 539 transitions. Second operand has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 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 00:14:53,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:14:55,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:14:55,290 INFO L93 Difference]: Finished difference Result 474 states and 539 transitions. [2023-11-29 00:14:55,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:14:55,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 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 00:14:55,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:14:55,293 INFO L225 Difference]: With dead ends: 474 [2023-11-29 00:14:55,293 INFO L226 Difference]: Without dead ends: 457 [2023-11-29 00:14:55,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:14:55,293 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 325 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:14:55,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 267 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 00:14:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-29 00:14:55,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2023-11-29 00:14:55,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 362 states have (on average 1.2734806629834254) internal successors, (461), 427 states have internal predecessors, (461), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:14:55,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 517 transitions. [2023-11-29 00:14:55,307 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 517 transitions. Word has length 128 [2023-11-29 00:14:55,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:14:55,308 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 517 transitions. [2023-11-29 00:14:55,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.2) internal successors, (91), 6 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 00:14:55,308 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 517 transitions. [2023-11-29 00:14:55,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 00:14:55,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:14:55,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:14:55,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 00:14:55,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:55,509 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:14:55,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:14:55,509 INFO L85 PathProgramCache]: Analyzing trace with hash -132015902, now seen corresponding path program 1 times [2023-11-29 00:14:55,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:14:55,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196465446] [2023-11-29 00:14:55,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:55,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:14:55,520 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:14:55,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8196143] [2023-11-29 00:14:55,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:14:55,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:14:55,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:14:55,522 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:14:55,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 00:14:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:14:55,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:14:55,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:14:56,180 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 00:14:56,180 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:09,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:09,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196465446] [2023-11-29 00:15:09,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:09,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8196143] [2023-11-29 00:15:09,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8196143] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:15:09,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:15:09,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 00:15:09,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296240339] [2023-11-29 00:15:09,128 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:09,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:15:09,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:09,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:15:09,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=91, Unknown=2, NotChecked=0, Total=132 [2023-11-29 00:15:09,130 INFO L87 Difference]: Start difference. First operand 457 states and 517 transitions. Second operand has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 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 00:15:13,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:13,029 INFO L93 Difference]: Finished difference Result 457 states and 517 transitions. [2023-11-29 00:15:13,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:15:13,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 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 00:15:13,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:13,032 INFO L225 Difference]: With dead ends: 457 [2023-11-29 00:15:13,032 INFO L226 Difference]: Without dead ends: 417 [2023-11-29 00:15:13,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=85, Invalid=153, Unknown=2, NotChecked=0, Total=240 [2023-11-29 00:15:13,033 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 286 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:13,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 360 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-29 00:15:13,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-11-29 00:15:13,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2023-11-29 00:15:13,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 334 states have (on average 1.2544910179640718) internal successors, (419), 389 states have internal predecessors, (419), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 00:15:13,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 471 transitions. [2023-11-29 00:15:13,053 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 471 transitions. Word has length 132 [2023-11-29 00:15:13,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:13,053 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 471 transitions. [2023-11-29 00:15:13,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.833333333333334) internal successors, (95), 7 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 00:15:13,054 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 471 transitions. [2023-11-29 00:15:13,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-29 00:15:13,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:13,055 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:15:13,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 00:15:13,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:13,261 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:13,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1691315262, now seen corresponding path program 1 times [2023-11-29 00:15:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:13,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210722964] [2023-11-29 00:15:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:13,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:13,273 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:13,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580919339] [2023-11-29 00:15:13,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:13,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:13,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:13,274 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:13,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 00:15:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:13,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:15:13,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:13,850 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 00:15:13,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:14,104 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-29 00:15:14,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:14,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210722964] [2023-11-29 00:15:14,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:14,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580919339] [2023-11-29 00:15:14,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580919339] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:15:14,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:15:14,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 00:15:14,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978046237] [2023-11-29 00:15:14,105 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:14,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:15:14,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:14,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:15:14,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:15:14,107 INFO L87 Difference]: Start difference. First operand 417 states and 471 transitions. Second operand has 8 states, 7 states have (on average 31.857142857142858) internal successors, (223), 8 states have internal predecessors, (223), 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 00:15:19,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:15:19,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:19,589 INFO L93 Difference]: Finished difference Result 618 states and 651 transitions. [2023-11-29 00:15:19,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:15:19,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 31.857142857142858) internal successors, (223), 8 states have internal predecessors, (223), 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 161 [2023-11-29 00:15:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:19,593 INFO L225 Difference]: With dead ends: 618 [2023-11-29 00:15:19,593 INFO L226 Difference]: Without dead ends: 617 [2023-11-29 00:15:19,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 314 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 00:15:19,594 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 456 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:19,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 349 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-29 00:15:19,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2023-11-29 00:15:19,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 450. [2023-11-29 00:15:19,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 365 states have (on average 1.263013698630137) internal successors, (461), 420 states have internal predecessors, (461), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:19,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 517 transitions. [2023-11-29 00:15:19,620 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 517 transitions. Word has length 161 [2023-11-29 00:15:19,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:19,621 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 517 transitions. [2023-11-29 00:15:19,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 31.857142857142858) internal successors, (223), 8 states have internal predecessors, (223), 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 00:15:19,621 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 517 transitions. [2023-11-29 00:15:19,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 00:15:19,622 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:19,623 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, 2, 1, 1, 1, 1, 1] [2023-11-29 00:15:19,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 00:15:19,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 00:15:19,823 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:19,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:19,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1525566786, now seen corresponding path program 1 times [2023-11-29 00:15:19,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:19,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130934575] [2023-11-29 00:15:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:19,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:19,836 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:19,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1099265767] [2023-11-29 00:15:19,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:19,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:19,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:19,837 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:19,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 00:15:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:19,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 00:15:19,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2023-11-29 00:15:19,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:15:19,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:19,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130934575] [2023-11-29 00:15:19,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:19,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099265767] [2023-11-29 00:15:19,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099265767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:15:19,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:15:19,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:15:19,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688150371] [2023-11-29 00:15:19,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:15:19,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:15:19,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:19,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:15:19,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:15:19,944 INFO L87 Difference]: Start difference. First operand 450 states and 517 transitions. Second operand has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 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 00:15:20,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:20,188 INFO L93 Difference]: Finished difference Result 450 states and 517 transitions. [2023-11-29 00:15:20,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:15:20,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 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 165 [2023-11-29 00:15:20,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:20,191 INFO L225 Difference]: With dead ends: 450 [2023-11-29 00:15:20,191 INFO L226 Difference]: Without dead ends: 449 [2023-11-29 00:15:20,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 163 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 00:15:20,192 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 161 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:20,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 145 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:15:20,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-29 00:15:20,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2023-11-29 00:15:20,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.2575342465753425) internal successors, (459), 419 states have internal predecessors, (459), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:20,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 515 transitions. [2023-11-29 00:15:20,212 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 515 transitions. Word has length 165 [2023-11-29 00:15:20,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:20,213 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 515 transitions. [2023-11-29 00:15:20,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 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 00:15:20,213 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 515 transitions. [2023-11-29 00:15:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-29 00:15:20,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:20,214 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, 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 00:15:20,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 00:15:20,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 00:15:20,414 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:20,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:20,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1407991915, now seen corresponding path program 1 times [2023-11-29 00:15:20,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:20,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257563717] [2023-11-29 00:15:20,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:20,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:20,425 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:20,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829439225] [2023-11-29 00:15:20,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:20,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:20,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:20,426 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:20,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 00:15:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:20,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:15:20,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:21,020 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 00:15:21,020 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:21,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:21,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257563717] [2023-11-29 00:15:21,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:21,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829439225] [2023-11-29 00:15:21,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829439225] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:15:21,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:15:21,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 00:15:21,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773102222] [2023-11-29 00:15:21,378 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:21,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:15:21,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:21,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:15:21,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:15:21,380 INFO L87 Difference]: Start difference. First operand 449 states and 515 transitions. Second operand has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 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 00:15:22,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:22,547 INFO L93 Difference]: Finished difference Result 475 states and 515 transitions. [2023-11-29 00:15:22,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:15:22,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 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 169 [2023-11-29 00:15:22,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:22,551 INFO L225 Difference]: With dead ends: 475 [2023-11-29 00:15:22,551 INFO L226 Difference]: Without dead ends: 474 [2023-11-29 00:15:22,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 255 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 00:15:22,552 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 83 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:22,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 464 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 00:15:22,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-29 00:15:22,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 449. [2023-11-29 00:15:22,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.2547945205479452) internal successors, (458), 419 states have internal predecessors, (458), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:22,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 514 transitions. [2023-11-29 00:15:22,572 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 514 transitions. Word has length 169 [2023-11-29 00:15:22,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:22,573 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 514 transitions. [2023-11-29 00:15:22,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 6 states have internal predecessors, (117), 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 00:15:22,573 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 514 transitions. [2023-11-29 00:15:22,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-29 00:15:22,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:22,574 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, 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 00:15:22,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 00:15:22,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 00:15:22,775 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:22,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:22,775 INFO L85 PathProgramCache]: Analyzing trace with hash 698076591, now seen corresponding path program 1 times [2023-11-29 00:15:22,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:22,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421157739] [2023-11-29 00:15:22,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:22,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:22,792 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:22,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [259670907] [2023-11-29 00:15:22,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:22,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:22,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:22,794 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:22,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 00:15:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:22,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:15:22,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:23,171 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 00:15:23,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:23,539 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 00:15:23,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:23,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421157739] [2023-11-29 00:15:23,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:23,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259670907] [2023-11-29 00:15:23,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259670907] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:15:23,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:15:23,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 00:15:23,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680650026] [2023-11-29 00:15:23,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:23,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:15:23,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:23,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:15:23,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:15:23,542 INFO L87 Difference]: Start difference. First operand 449 states and 514 transitions. Second operand has 8 states, 7 states have (on average 25.0) internal successors, (175), 8 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 00:15:23,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:23,909 INFO L93 Difference]: Finished difference Result 474 states and 514 transitions. [2023-11-29 00:15:23,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:15:23,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 25.0) internal successors, (175), 8 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 170 [2023-11-29 00:15:23,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:23,912 INFO L225 Difference]: With dead ends: 474 [2023-11-29 00:15:23,912 INFO L226 Difference]: Without dead ends: 469 [2023-11-29 00:15:23,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 331 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:15:23,913 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 217 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:23,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 583 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:15:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-29 00:15:23,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 449. [2023-11-29 00:15:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.2410958904109588) internal successors, (453), 419 states have internal predecessors, (453), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:23,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 509 transitions. [2023-11-29 00:15:23,932 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 509 transitions. Word has length 170 [2023-11-29 00:15:23,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:23,932 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 509 transitions. [2023-11-29 00:15:23,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 25.0) internal successors, (175), 8 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 00:15:23,932 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 509 transitions. [2023-11-29 00:15:23,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 00:15:23,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:23,933 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, 1, 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 00:15:23,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 00:15:24,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 00:15:24,134 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:24,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:24,135 INFO L85 PathProgramCache]: Analyzing trace with hash 836711793, now seen corresponding path program 1 times [2023-11-29 00:15:24,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:24,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799878704] [2023-11-29 00:15:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:24,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:24,163 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:24,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1634376591] [2023-11-29 00:15:24,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:24,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:24,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:24,165 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:24,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 00:15:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:24,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:15:24,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 00:15:24,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:25,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:25,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799878704] [2023-11-29 00:15:25,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:25,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634376591] [2023-11-29 00:15:25,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634376591] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:15:25,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:15:25,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 00:15:25,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035771595] [2023-11-29 00:15:25,303 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:25,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:15:25,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:25,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:15:25,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:15:25,304 INFO L87 Difference]: Start difference. First operand 449 states and 509 transitions. Second operand has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 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 00:15:25,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:25,788 INFO L93 Difference]: Finished difference Result 469 states and 509 transitions. [2023-11-29 00:15:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:15:25,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 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 172 [2023-11-29 00:15:25,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:25,791 INFO L225 Difference]: With dead ends: 469 [2023-11-29 00:15:25,791 INFO L226 Difference]: Without dead ends: 464 [2023-11-29 00:15:25,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:15:25,792 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 70 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:25,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 483 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:15:25,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-29 00:15:25,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 449. [2023-11-29 00:15:25,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.2273972602739727) internal successors, (448), 419 states have internal predecessors, (448), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:25,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 504 transitions. [2023-11-29 00:15:25,818 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 504 transitions. Word has length 172 [2023-11-29 00:15:25,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:25,819 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 504 transitions. [2023-11-29 00:15:25,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.0) internal successors, (120), 5 states have internal predecessors, (120), 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 00:15:25,819 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 504 transitions. [2023-11-29 00:15:25,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-29 00:15:25,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:25,820 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, 1, 1, 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 00:15:25,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 00:15:26,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 00:15:26,021 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:26,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:26,021 INFO L85 PathProgramCache]: Analyzing trace with hash 168261999, now seen corresponding path program 1 times [2023-11-29 00:15:26,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:26,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678593569] [2023-11-29 00:15:26,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:26,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:26,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:26,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1577952967] [2023-11-29 00:15:26,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:26,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:26,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:26,036 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:26,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 00:15:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:26,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:15:26,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:26,929 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 00:15:26,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:27,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:27,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678593569] [2023-11-29 00:15:27,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:27,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577952967] [2023-11-29 00:15:27,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577952967] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:15:27,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:15:27,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 00:15:27,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286664860] [2023-11-29 00:15:27,061 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:27,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:15:27,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:27,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:15:27,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:15:27,062 INFO L87 Difference]: Start difference. First operand 449 states and 504 transitions. Second operand has 7 states, 6 states have (on average 20.166666666666668) internal successors, (121), 7 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 00:15:28,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:28,885 INFO L93 Difference]: Finished difference Result 464 states and 504 transitions. [2023-11-29 00:15:28,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:15:28,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.166666666666668) internal successors, (121), 7 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 00:15:28,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:28,889 INFO L225 Difference]: With dead ends: 464 [2023-11-29 00:15:28,889 INFO L226 Difference]: Without dead ends: 462 [2023-11-29 00:15:28,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 173 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 00:15:28,890 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 125 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:28,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 478 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 00:15:28,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-29 00:15:28,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 449. [2023-11-29 00:15:28,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 365 states have (on average 1.2219178082191782) internal successors, (446), 419 states have internal predecessors, (446), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:28,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 502 transitions. [2023-11-29 00:15:28,910 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 502 transitions. Word has length 173 [2023-11-29 00:15:28,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:28,911 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 502 transitions. [2023-11-29 00:15:28,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.166666666666668) internal successors, (121), 7 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 00:15:28,912 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 502 transitions. [2023-11-29 00:15:28,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 00:15:28,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:28,914 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, 1, 1, 1, 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 00:15:28,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-29 00:15:29,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:29,115 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:29,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 921154867, now seen corresponding path program 1 times [2023-11-29 00:15:29,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:29,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771858923] [2023-11-29 00:15:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:29,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:29,127 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:29,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1336693463] [2023-11-29 00:15:29,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:29,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:29,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:29,129 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:29,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 00:15:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:29,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:15:29,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:30,266 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 00:15:30,267 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:30,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:30,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771858923] [2023-11-29 00:15:30,492 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:30,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336693463] [2023-11-29 00:15:30,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336693463] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:15:30,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:15:30,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 00:15:30,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697118958] [2023-11-29 00:15:30,493 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:30,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:15:30,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:30,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:15:30,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:15:30,495 INFO L87 Difference]: Start difference. First operand 449 states and 502 transitions. Second operand has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 7 states have internal predecessors, (122), 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 00:15:32,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:32,625 INFO L93 Difference]: Finished difference Result 449 states and 502 transitions. [2023-11-29 00:15:32,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:15:32,625 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), 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 174 [2023-11-29 00:15:32,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:32,629 INFO L225 Difference]: With dead ends: 449 [2023-11-29 00:15:32,629 INFO L226 Difference]: Without dead ends: 447 [2023-11-29 00:15:32,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:15:32,630 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 502 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:32,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 216 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 00:15:32,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-11-29 00:15:32,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2023-11-29 00:15:32,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 365 states have (on average 1.210958904109589) internal successors, (442), 417 states have internal predecessors, (442), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:32,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 498 transitions. [2023-11-29 00:15:32,649 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 498 transitions. Word has length 174 [2023-11-29 00:15:32,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:32,649 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 498 transitions. [2023-11-29 00:15:32,649 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), 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 00:15:32,650 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 498 transitions. [2023-11-29 00:15:32,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 00:15:32,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:32,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:32,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 00:15:32,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 00:15:32,851 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:32,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:32,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1539470719, now seen corresponding path program 1 times [2023-11-29 00:15:32,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:32,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605774536] [2023-11-29 00:15:32,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:32,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:32,874 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:32,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1088007115] [2023-11-29 00:15:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:32,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:32,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:32,876 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:32,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 00:15:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:32,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:15:32,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:33,869 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 00:15:33,869 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:34,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:34,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605774536] [2023-11-29 00:15:34,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:34,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088007115] [2023-11-29 00:15:34,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088007115] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:15:34,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:15:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 00:15:34,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200035454] [2023-11-29 00:15:34,956 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:34,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:15:34,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:34,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:15:34,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:15:34,958 INFO L87 Difference]: Start difference. First operand 447 states and 498 transitions. Second operand has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 00:15:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:36,504 INFO L93 Difference]: Finished difference Result 458 states and 498 transitions. [2023-11-29 00:15:36,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:15:36,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 192 [2023-11-29 00:15:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:36,507 INFO L225 Difference]: With dead ends: 458 [2023-11-29 00:15:36,507 INFO L226 Difference]: Without dead ends: 455 [2023-11-29 00:15:36,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:15:36,508 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 147 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:36,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 343 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 00:15:36,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-29 00:15:36,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 447. [2023-11-29 00:15:36,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 365 states have (on average 1.2027397260273973) internal successors, (439), 417 states have internal predecessors, (439), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:36,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 495 transitions. [2023-11-29 00:15:36,526 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 495 transitions. Word has length 192 [2023-11-29 00:15:36,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:36,527 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 495 transitions. [2023-11-29 00:15:36,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 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 00:15:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 495 transitions. [2023-11-29 00:15:36,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-29 00:15:36,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:36,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:36,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 00:15:36,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 00:15:36,729 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:36,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:36,729 INFO L85 PathProgramCache]: Analyzing trace with hash -478951810, now seen corresponding path program 1 times [2023-11-29 00:15:36,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:36,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677359589] [2023-11-29 00:15:36,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:36,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:36,742 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:36,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159300489] [2023-11-29 00:15:36,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:36,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:36,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:36,744 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:36,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 00:15:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:36,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:15:36,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:37,451 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 00:15:37,451 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:37,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:37,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677359589] [2023-11-29 00:15:37,535 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:37,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159300489] [2023-11-29 00:15:37,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159300489] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:15:37,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:15:37,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 00:15:37,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331051144] [2023-11-29 00:15:37,535 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:37,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:15:37,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:37,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:15:37,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:15:37,537 INFO L87 Difference]: Start difference. First operand 447 states and 495 transitions. Second operand has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 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 00:15:39,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:39,582 INFO L93 Difference]: Finished difference Result 447 states and 495 transitions. [2023-11-29 00:15:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:15:39,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 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 193 [2023-11-29 00:15:39,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:39,585 INFO L225 Difference]: With dead ends: 447 [2023-11-29 00:15:39,585 INFO L226 Difference]: Without dead ends: 443 [2023-11-29 00:15:39,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:15:39,585 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 515 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:39,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 119 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 00:15:39,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2023-11-29 00:15:39,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2023-11-29 00:15:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 365 states have (on average 1.189041095890411) internal successors, (434), 413 states have internal predecessors, (434), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:39,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 490 transitions. [2023-11-29 00:15:39,604 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 490 transitions. Word has length 193 [2023-11-29 00:15:39,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:39,604 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 490 transitions. [2023-11-29 00:15:39,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 6 states have internal predecessors, (136), 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 00:15:39,605 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 490 transitions. [2023-11-29 00:15:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-29 00:15:39,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:39,606 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 00:15:39,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-29 00:15:39,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 00:15:39,806 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:39,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:39,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1102486096, now seen corresponding path program 1 times [2023-11-29 00:15:39,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:39,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945387311] [2023-11-29 00:15:39,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:39,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:39,822 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:39,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020664965] [2023-11-29 00:15:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:39,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:39,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:39,824 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:39,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 00:15:39,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:39,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:15:39,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:40,058 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 00:15:40,058 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:40,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:40,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945387311] [2023-11-29 00:15:40,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:40,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020664965] [2023-11-29 00:15:40,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020664965] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:15:40,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:15:40,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 00:15:40,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224793973] [2023-11-29 00:15:40,164 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:40,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:15:40,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:40,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:15:40,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:15:40,166 INFO L87 Difference]: Start difference. First operand 443 states and 490 transitions. Second operand has 5 states, 4 states have (on average 34.25) internal successors, (137), 5 states have internal predecessors, (137), 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 00:15:40,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:40,297 INFO L93 Difference]: Finished difference Result 584 states and 616 transitions. [2023-11-29 00:15:40,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:15:40,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 34.25) internal successors, (137), 5 states have internal predecessors, (137), 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 194 [2023-11-29 00:15:40,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:40,300 INFO L225 Difference]: With dead ends: 584 [2023-11-29 00:15:40,300 INFO L226 Difference]: Without dead ends: 583 [2023-11-29 00:15:40,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 227 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 00:15:40,300 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 285 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:40,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 703 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:15:40,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-11-29 00:15:40,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 443. [2023-11-29 00:15:40,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 365 states have (on average 1.1863013698630136) internal successors, (433), 413 states have internal predecessors, (433), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:40,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 489 transitions. [2023-11-29 00:15:40,316 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 489 transitions. Word has length 194 [2023-11-29 00:15:40,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:40,316 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 489 transitions. [2023-11-29 00:15:40,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 34.25) internal successors, (137), 5 states have internal predecessors, (137), 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 00:15:40,316 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 489 transitions. [2023-11-29 00:15:40,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 00:15:40,317 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:40,317 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:15:40,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 00:15:40,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-29 00:15:40,518 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:40,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:40,518 INFO L85 PathProgramCache]: Analyzing trace with hash -545648702, now seen corresponding path program 1 times [2023-11-29 00:15:40,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:40,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041050018] [2023-11-29 00:15:40,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:40,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:40,531 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:40,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563784807] [2023-11-29 00:15:40,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:40,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:40,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:40,533 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:40,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 00:15:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:15:40,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:15:40,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:42,112 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-29 00:15:42,112 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:42,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:42,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041050018] [2023-11-29 00:15:42,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:42,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563784807] [2023-11-29 00:15:42,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563784807] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:15:42,752 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:15:42,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 00:15:42,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261091392] [2023-11-29 00:15:42,752 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:42,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:15:42,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:42,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:15:42,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:15:42,754 INFO L87 Difference]: Start difference. First operand 443 states and 489 transitions. Second operand has 9 states, 8 states have (on average 17.5) internal successors, (140), 9 states have internal predecessors, (140), 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 00:15:43,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:43,711 INFO L93 Difference]: Finished difference Result 450 states and 489 transitions. [2023-11-29 00:15:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:15:43,711 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.5) internal successors, (140), 9 states have internal predecessors, (140), 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 197 [2023-11-29 00:15:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:43,714 INFO L225 Difference]: With dead ends: 450 [2023-11-29 00:15:43,714 INFO L226 Difference]: Without dead ends: 448 [2023-11-29 00:15:43,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:15:43,714 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 316 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 1272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:43,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 283 Invalid, 1272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 00:15:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-11-29 00:15:43,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 443. [2023-11-29 00:15:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 365 states have (on average 1.180821917808219) internal successors, (431), 413 states have internal predecessors, (431), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-29 00:15:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 487 transitions. [2023-11-29 00:15:43,734 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 487 transitions. Word has length 197 [2023-11-29 00:15:43,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:43,735 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 487 transitions. [2023-11-29 00:15:43,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.5) internal successors, (140), 9 states have internal predecessors, (140), 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 00:15:43,735 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 487 transitions. [2023-11-29 00:15:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-29 00:15:43,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:43,736 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 00:15:43,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 00:15:43,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 00:15:43,937 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:43,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:43,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1967822511, now seen corresponding path program 2 times [2023-11-29 00:15:43,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:43,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059523156] [2023-11-29 00:15:43,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:43,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:43,950 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:43,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116719177] [2023-11-29 00:15:43,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:15:43,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:43,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:43,951 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:43,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 00:15:44,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:15:44,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:15:44,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 00:15:44,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:44,559 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 00:15:44,559 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:44,885 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 0 proven. 113 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 00:15:44,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:44,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059523156] [2023-11-29 00:15:44,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:44,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116719177] [2023-11-29 00:15:44,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116719177] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:15:44,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:15:44,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 00:15:44,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724141126] [2023-11-29 00:15:44,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:44,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:15:44,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:44,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:15:44,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:15:44,887 INFO L87 Difference]: Start difference. First operand 443 states and 487 transitions. Second operand has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 10 states have internal predecessors, (277), 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 00:15:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:48,703 INFO L93 Difference]: Finished difference Result 614 states and 650 transitions. [2023-11-29 00:15:48,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:15:48,703 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 10 states have internal predecessors, (277), 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 203 [2023-11-29 00:15:48,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:48,706 INFO L225 Difference]: With dead ends: 614 [2023-11-29 00:15:48,706 INFO L226 Difference]: Without dead ends: 613 [2023-11-29 00:15:48,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 396 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 00:15:48,707 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 850 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:48,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 511 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 00:15:48,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2023-11-29 00:15:48,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 473. [2023-11-29 00:15:48,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 392 states have (on average 1.1734693877551021) internal successors, (460), 440 states have internal predecessors, (460), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 00:15:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 522 transitions. [2023-11-29 00:15:48,730 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 522 transitions. Word has length 203 [2023-11-29 00:15:48,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:48,731 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 522 transitions. [2023-11-29 00:15:48,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 10 states have internal predecessors, (277), 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 00:15:48,731 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 522 transitions. [2023-11-29 00:15:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-11-29 00:15:48,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:48,732 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, 1, 1, 1, 1] [2023-11-29 00:15:48,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 00:15:48,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 00:15:48,933 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:48,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:48,933 INFO L85 PathProgramCache]: Analyzing trace with hash 872955794, now seen corresponding path program 2 times [2023-11-29 00:15:48,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:48,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840481282] [2023-11-29 00:15:48,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:48,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:48,943 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:48,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144818763] [2023-11-29 00:15:48,943 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:15:48,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:48,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:48,944 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:48,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 00:15:49,034 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:15:49,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:15:49,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 00:15:49,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:15:49,930 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 00:15:49,930 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:15:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 115 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-29 00:15:50,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:15:50,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840481282] [2023-11-29 00:15:50,500 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:15:50,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144818763] [2023-11-29 00:15:50,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144818763] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:15:50,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:15:50,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2023-11-29 00:15:50,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226229933] [2023-11-29 00:15:50,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:15:50,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:15:50,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:15:50,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:15:50,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:15:50,503 INFO L87 Difference]: Start difference. First operand 473 states and 522 transitions. Second operand has 18 states, 17 states have (on average 16.41176470588235) internal successors, (279), 18 states have internal predecessors, (279), 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 00:15:59,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:15:59,155 INFO L93 Difference]: Finished difference Result 621 states and 664 transitions. [2023-11-29 00:15:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-11-29 00:15:59,156 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 16.41176470588235) internal successors, (279), 18 states have internal predecessors, (279), 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 204 [2023-11-29 00:15:59,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:15:59,158 INFO L225 Difference]: With dead ends: 621 [2023-11-29 00:15:59,158 INFO L226 Difference]: Without dead ends: 474 [2023-11-29 00:15:59,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=321, Invalid=549, Unknown=0, NotChecked=0, Total=870 [2023-11-29 00:15:59,159 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1613 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 3458 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1623 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 3620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 3458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:15:59,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1623 Valid, 631 Invalid, 3620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 3458 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-11-29 00:15:59,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-11-29 00:15:59,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 446. [2023-11-29 00:15:59,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 368 states have (on average 1.1630434782608696) internal successors, (428), 414 states have internal predecessors, (428), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:15:59,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 488 transitions. [2023-11-29 00:15:59,182 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 488 transitions. Word has length 204 [2023-11-29 00:15:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:15:59,183 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 488 transitions. [2023-11-29 00:15:59,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 16.41176470588235) internal successors, (279), 18 states have internal predecessors, (279), 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 00:15:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 488 transitions. [2023-11-29 00:15:59,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-11-29 00:15:59,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:15:59,185 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:15:59,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-11-29 00:15:59,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 00:15:59,385 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:15:59,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:15:59,385 INFO L85 PathProgramCache]: Analyzing trace with hash -146920684, now seen corresponding path program 2 times [2023-11-29 00:15:59,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:15:59,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191739229] [2023-11-29 00:15:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:15:59,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:15:59,400 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:15:59,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719084338] [2023-11-29 00:15:59,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:15:59,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:15:59,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:15:59,402 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:15:59,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 00:15:59,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:15:59,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:15:59,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 00:15:59,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:16:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 00:16:00,298 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:16:00,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:16:00,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191739229] [2023-11-29 00:16:00,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:16:00,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719084338] [2023-11-29 00:16:00,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719084338] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:16:00,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:16:00,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 00:16:00,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143506936] [2023-11-29 00:16:00,735 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:16:00,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:16:00,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:16:00,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:16:00,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:16:00,736 INFO L87 Difference]: Start difference. First operand 446 states and 488 transitions. Second operand has 10 states, 9 states have (on average 19.22222222222222) internal successors, (173), 10 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 00:16:02,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:16:02,989 INFO L93 Difference]: Finished difference Result 456 states and 488 transitions. [2023-11-29 00:16:02,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:16:02,989 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 19.22222222222222) internal successors, (173), 10 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 250 [2023-11-29 00:16:02,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:16:02,992 INFO L225 Difference]: With dead ends: 456 [2023-11-29 00:16:02,992 INFO L226 Difference]: Without dead ends: 455 [2023-11-29 00:16:02,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:16:02,992 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 128 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:16:02,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 528 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 00:16:02,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2023-11-29 00:16:03,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 446. [2023-11-29 00:16:03,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 368 states have (on average 1.1603260869565217) internal successors, (427), 414 states have internal predecessors, (427), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:16:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 487 transitions. [2023-11-29 00:16:03,029 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 487 transitions. Word has length 250 [2023-11-29 00:16:03,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:16:03,029 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 487 transitions. [2023-11-29 00:16:03,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 19.22222222222222) internal successors, (173), 10 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 00:16:03,030 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 487 transitions. [2023-11-29 00:16:03,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-29 00:16:03,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:16:03,032 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:16:03,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 00:16:03,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 00:16:03,232 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:16:03,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:16:03,233 INFO L85 PathProgramCache]: Analyzing trace with hash -259573722, now seen corresponding path program 2 times [2023-11-29 00:16:03,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:16:03,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117639283] [2023-11-29 00:16:03,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:16:03,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:16:03,245 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:16:03,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105543030] [2023-11-29 00:16:03,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:16:03,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:16:03,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:16:03,247 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:16:03,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 00:16:03,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:16:03,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:16:03,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:16:03,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:16:03,680 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 00:16:03,680 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:16:04,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:16:04,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117639283] [2023-11-29 00:16:04,031 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:16:04,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105543030] [2023-11-29 00:16:04,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105543030] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:16:04,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:16:04,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 00:16:04,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204598579] [2023-11-29 00:16:04,032 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:16:04,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:16:04,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:16:04,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:16:04,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:16:04,034 INFO L87 Difference]: Start difference. First operand 446 states and 487 transitions. Second operand has 8 states, 7 states have (on average 24.857142857142858) internal successors, (174), 8 states have internal predecessors, (174), 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 00:16:04,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:16:04,705 INFO L93 Difference]: Finished difference Result 455 states and 487 transitions. [2023-11-29 00:16:04,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:16:04,705 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.857142857142858) internal successors, (174), 8 states have internal predecessors, (174), 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 251 [2023-11-29 00:16:04,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:16:04,708 INFO L225 Difference]: With dead ends: 455 [2023-11-29 00:16:04,708 INFO L226 Difference]: Without dead ends: 454 [2023-11-29 00:16:04,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:16:04,709 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 74 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:16:04,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1050 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 00:16:04,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-11-29 00:16:04,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 446. [2023-11-29 00:16:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 368 states have (on average 1.1576086956521738) internal successors, (426), 414 states have internal predecessors, (426), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:16:04,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 486 transitions. [2023-11-29 00:16:04,729 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 486 transitions. Word has length 251 [2023-11-29 00:16:04,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:16:04,730 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 486 transitions. [2023-11-29 00:16:04,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.857142857142858) internal successors, (174), 8 states have internal predecessors, (174), 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 00:16:04,730 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 486 transitions. [2023-11-29 00:16:04,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-29 00:16:04,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:16:04,732 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, 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] [2023-11-29 00:16:04,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 00:16:04,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 00:16:04,934 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:16:04,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:16:04,935 INFO L85 PathProgramCache]: Analyzing trace with hash -2019432552, now seen corresponding path program 2 times [2023-11-29 00:16:04,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:16:04,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127169984] [2023-11-29 00:16:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:16:04,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:16:04,950 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:16:04,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343936449] [2023-11-29 00:16:04,950 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:16:04,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:16:04,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:16:04,951 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:16:04,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 00:16:05,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:16:05,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:16:05,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 00:16:05,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:16:07,768 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 00:16:07,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:16:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 00:16:10,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:16:10,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127169984] [2023-11-29 00:16:10,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:16:10,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343936449] [2023-11-29 00:16:10,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343936449] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:16:10,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:16:10,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 19 [2023-11-29 00:16:10,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441192962] [2023-11-29 00:16:10,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:16:10,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 00:16:10,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:16:10,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 00:16:10,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-11-29 00:16:10,543 INFO L87 Difference]: Start difference. First operand 446 states and 486 transitions. Second operand has 20 states, 19 states have (on average 18.473684210526315) internal successors, (351), 20 states have internal predecessors, (351), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-29 00:16:20,672 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 00:16:24,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:16:30,047 WARN L539 Checker$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 00:16:37,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:16:38,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:16:38,841 INFO L93 Difference]: Finished difference Result 513 states and 547 transitions. [2023-11-29 00:16:38,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:16:38,841 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 18.473684210526315) internal successors, (351), 20 states have internal predecessors, (351), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 254 [2023-11-29 00:16:38,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:16:38,844 INFO L225 Difference]: With dead ends: 513 [2023-11-29 00:16:38,844 INFO L226 Difference]: Without dead ends: 510 [2023-11-29 00:16:38,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=256, Invalid=614, Unknown=0, NotChecked=0, Total=870 [2023-11-29 00:16:38,848 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 1254 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 90 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:16:38,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 411 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2421 Invalid, 3 Unknown, 0 Unchecked, 26.8s Time] [2023-11-29 00:16:38,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-11-29 00:16:38,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 485. [2023-11-29 00:16:38,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 404 states have (on average 1.1683168316831682) internal successors, (472), 450 states have internal predecessors, (472), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 00:16:38,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 538 transitions. [2023-11-29 00:16:38,877 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 538 transitions. Word has length 254 [2023-11-29 00:16:38,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:16:38,878 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 538 transitions. [2023-11-29 00:16:38,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 18.473684210526315) internal successors, (351), 20 states have internal predecessors, (351), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2023-11-29 00:16:38,878 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 538 transitions. [2023-11-29 00:16:38,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-29 00:16:38,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:16:38,880 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 1, 1] [2023-11-29 00:16:38,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 00:16:39,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 00:16:39,080 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:16:39,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:16:39,081 INFO L85 PathProgramCache]: Analyzing trace with hash -782186094, now seen corresponding path program 1 times [2023-11-29 00:16:39,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:16:39,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390591847] [2023-11-29 00:16:39,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:16:39,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:16:39,097 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:16:39,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1823236148] [2023-11-29 00:16:39,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:16:39,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:16:39,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:16:39,098 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:16:39,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 00:16:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:16:39,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:16:39,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:16:39,370 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 00:16:39,370 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:16:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-29 00:16:39,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:16:39,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390591847] [2023-11-29 00:16:39,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:16:39,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823236148] [2023-11-29 00:16:39,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823236148] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:16:39,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:16:39,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 00:16:39,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349875491] [2023-11-29 00:16:39,727 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:16:39,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:16:39,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:16:39,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:16:39,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:16:39,729 INFO L87 Difference]: Start difference. First operand 485 states and 538 transitions. Second operand has 10 states, 9 states have (on average 41.0) internal successors, (369), 10 states have internal predecessors, (369), 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 00:16:40,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:16:40,075 INFO L93 Difference]: Finished difference Result 640 states and 680 transitions. [2023-11-29 00:16:40,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:16:40,076 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 41.0) internal successors, (369), 10 states have internal predecessors, (369), 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 264 [2023-11-29 00:16:40,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:16:40,079 INFO L225 Difference]: With dead ends: 640 [2023-11-29 00:16:40,079 INFO L226 Difference]: Without dead ends: 638 [2023-11-29 00:16:40,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:16:40,080 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 933 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:16:40,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 1438 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:16:40,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2023-11-29 00:16:40,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 484. [2023-11-29 00:16:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 404 states have (on average 1.1608910891089108) internal successors, (469), 449 states have internal predecessors, (469), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-29 00:16:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 535 transitions. [2023-11-29 00:16:40,121 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 535 transitions. Word has length 264 [2023-11-29 00:16:40,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:16:40,121 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 535 transitions. [2023-11-29 00:16:40,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 41.0) internal successors, (369), 10 states have internal predecessors, (369), 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 00:16:40,122 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 535 transitions. [2023-11-29 00:16:40,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-11-29 00:16:40,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:16:40,123 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, 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 00:16:40,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2023-11-29 00:16:40,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:16:40,323 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:16:40,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:16:40,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1620332104, now seen corresponding path program 2 times [2023-11-29 00:16:40,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:16:40,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113780822] [2023-11-29 00:16:40,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:16:40,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:16:40,339 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:16:40,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053810478] [2023-11-29 00:16:40,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:16:40,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:16:40,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:16:40,341 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:16:40,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 00:16:40,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:16:40,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:16:40,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 00:16:40,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:16:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 00:16:42,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:16:43,941 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 167 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2023-11-29 00:16:43,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:16:43,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113780822] [2023-11-29 00:16:43,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:16:43,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053810478] [2023-11-29 00:16:43,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053810478] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:16:43,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:16:43,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 17 [2023-11-29 00:16:43,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444518000] [2023-11-29 00:16:43,942 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:16:43,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:16:43,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:16:43,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:16:43,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:16:43,944 INFO L87 Difference]: Start difference. First operand 484 states and 535 transitions. Second operand has 18 states, 17 states have (on average 22.294117647058822) internal successors, (379), 18 states have internal predecessors, (379), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-29 00:16:48,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:16:48,571 INFO L93 Difference]: Finished difference Result 613 states and 658 transitions. [2023-11-29 00:16:48,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 00:16:48,571 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 22.294117647058822) internal successors, (379), 18 states have internal predecessors, (379), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 273 [2023-11-29 00:16:48,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:16:48,574 INFO L225 Difference]: With dead ends: 613 [2023-11-29 00:16:48,575 INFO L226 Difference]: Without dead ends: 574 [2023-11-29 00:16:48,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2023-11-29 00:16:48,576 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 1015 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 2580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:16:48,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 517 Invalid, 2580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2517 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 00:16:48,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2023-11-29 00:16:48,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 538. [2023-11-29 00:16:48,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 453 states have (on average 1.1766004415011038) internal successors, (533), 498 states have internal predecessors, (533), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-29 00:16:48,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 609 transitions. [2023-11-29 00:16:48,615 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 609 transitions. Word has length 273 [2023-11-29 00:16:48,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:16:48,616 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 609 transitions. [2023-11-29 00:16:48,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 22.294117647058822) internal successors, (379), 18 states have internal predecessors, (379), 6 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2023-11-29 00:16:48,616 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 609 transitions. [2023-11-29 00:16:48,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-11-29 00:16:48,617 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:16:48,617 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2023-11-29 00:16:48,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 00:16:48,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:16:48,818 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:16:48,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:16:48,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1859063562, now seen corresponding path program 2 times [2023-11-29 00:16:48,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:16:48,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931904522] [2023-11-29 00:16:48,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:16:48,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:16:48,830 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:16:48,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381386636] [2023-11-29 00:16:48,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:16:48,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:16:48,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:16:48,831 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:16:48,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 00:16:48,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:16:48,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:16:48,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:16:48,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:16:49,469 INFO L134 CoverageAnalysis]: Checked inductivity of 867 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 00:16:49,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:16:49,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:16:49,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931904522] [2023-11-29 00:16:49,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:16:49,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381386636] [2023-11-29 00:16:49,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381386636] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:16:49,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:16:49,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 00:16:49,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976157220] [2023-11-29 00:16:49,708 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:16:49,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:16:49,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:16:49,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:16:49,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:16:49,709 INFO L87 Difference]: Start difference. First operand 538 states and 609 transitions. Second operand has 9 states, 8 states have (on average 24.375) internal successors, (195), 9 states have internal predecessors, (195), 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 00:16:51,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:16:51,515 INFO L93 Difference]: Finished difference Result 656 states and 716 transitions. [2023-11-29 00:16:51,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:16:51,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 24.375) internal successors, (195), 9 states have internal predecessors, (195), 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 282 [2023-11-29 00:16:51,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:16:51,518 INFO L225 Difference]: With dead ends: 656 [2023-11-29 00:16:51,519 INFO L226 Difference]: Without dead ends: 643 [2023-11-29 00:16:51,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:16:51,519 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 145 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 00:16:51,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1031 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 00:16:51,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2023-11-29 00:16:51,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 607. [2023-11-29 00:16:51,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 518 states have (on average 1.1776061776061777) internal successors, (610), 563 states have internal predecessors, (610), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 00:16:51,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 694 transitions. [2023-11-29 00:16:51,568 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 694 transitions. Word has length 282 [2023-11-29 00:16:51,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:16:51,568 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 694 transitions. [2023-11-29 00:16:51,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 24.375) internal successors, (195), 9 states have internal predecessors, (195), 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 00:16:51,568 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 694 transitions. [2023-11-29 00:16:51,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-11-29 00:16:51,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:16:51,570 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2023-11-29 00:16:51,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 00:16:51,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:16:51,771 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:16:51,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:16:51,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2071492467, now seen corresponding path program 1 times [2023-11-29 00:16:51,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:16:51,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840074521] [2023-11-29 00:16:51,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:16:51,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:16:51,782 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:16:51,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [53182245] [2023-11-29 00:16:51,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:16:51,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:16:51,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:16:51,783 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:16:51,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 00:16:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:16:51,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 00:16:51,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:16:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 00:16:53,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:16:58,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:16:58,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840074521] [2023-11-29 00:16:58,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:16:58,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53182245] [2023-11-29 00:16:58,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53182245] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:16:58,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:16:58,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 00:16:58,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151455930] [2023-11-29 00:16:58,924 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:16:58,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 00:16:58,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:16:58,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 00:16:58,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=271, Unknown=1, NotChecked=0, Total=380 [2023-11-29 00:16:58,926 INFO L87 Difference]: Start difference. First operand 607 states and 694 transitions. Second operand has 15 states, 14 states have (on average 14.428571428571429) internal successors, (202), 15 states have internal predecessors, (202), 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 00:17:01,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:17:01,924 INFO L93 Difference]: Finished difference Result 643 states and 703 transitions. [2023-11-29 00:17:01,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:17:01,925 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 14.428571428571429) internal successors, (202), 15 states have internal predecessors, (202), 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 289 [2023-11-29 00:17:01,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:17:01,927 INFO L225 Difference]: With dead ends: 643 [2023-11-29 00:17:01,927 INFO L226 Difference]: Without dead ends: 610 [2023-11-29 00:17:01,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=108, Invalid=271, Unknown=1, NotChecked=0, Total=380 [2023-11-29 00:17:01,928 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 129 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 4634 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 4640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 00:17:01,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 680 Invalid, 4640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4634 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 00:17:01,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-11-29 00:17:01,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 588. [2023-11-29 00:17:01,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 500 states have (on average 1.174) internal successors, (587), 545 states have internal predecessors, (587), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-29 00:17:01,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 669 transitions. [2023-11-29 00:17:01,974 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 669 transitions. Word has length 289 [2023-11-29 00:17:01,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:17:01,975 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 669 transitions. [2023-11-29 00:17:01,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 14.428571428571429) internal successors, (202), 15 states have internal predecessors, (202), 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 00:17:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 669 transitions. [2023-11-29 00:17:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-11-29 00:17:01,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:17:01,976 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-11-29 00:17:01,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-29 00:17:02,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:17:02,177 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:17:02,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:17:02,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1883812797, now seen corresponding path program 1 times [2023-11-29 00:17:02,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:17:02,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067851211] [2023-11-29 00:17:02,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:17:02,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:17:02,188 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:17:02,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513672155] [2023-11-29 00:17:02,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:17:02,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:17:02,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:17:02,189 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:17:02,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 00:17:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:17:02,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:17:02,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:17:02,483 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-29 00:17:02,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:17:02,900 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-11-29 00:17:02,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:17:02,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067851211] [2023-11-29 00:17:02,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:17:02,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513672155] [2023-11-29 00:17:02,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513672155] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:17:02,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:17:02,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 00:17:02,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072653427] [2023-11-29 00:17:02,902 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:17:02,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:17:02,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:17:02,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:17:02,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 00:17:02,904 INFO L87 Difference]: Start difference. First operand 588 states and 669 transitions. Second operand has 10 states, 9 states have (on average 46.333333333333336) internal successors, (417), 10 states have internal predecessors, (417), 8 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) [2023-11-29 00:17:05,025 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 00:17:09,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:17:13,740 WARN L539 Checker$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 00:17:17,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:17:22,070 WARN L539 Checker$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 00:17:26,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:17:30,275 WARN L539 Checker$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 00:17:34,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:17:38,329 WARN L539 Checker$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 00:17:42,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:17:46,333 WARN L539 Checker$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 00:17:50,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:17:54,337 WARN L539 Checker$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 00:17:56,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:18:00,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:18:04,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:18:08,955 WARN L539 Checker$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 00:18:12,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:18:16,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:18:20,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:18:25,018 WARN L539 Checker$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 00:18:29,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:18:33,344 WARN L539 Checker$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 00:18:37,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:18:41,347 WARN L539 Checker$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 00:18:45,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:18:49,526 WARN L539 Checker$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 00:18:53,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:18:57,530 WARN L539 Checker$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 00:19:01,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:19:05,533 WARN L539 Checker$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 00:19:09,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:19:13,537 WARN L539 Checker$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 00:19:18,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:19:22,056 WARN L539 Checker$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 00:19:26,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:19:30,160 WARN L539 Checker$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 00:19:34,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:19:38,166 WARN L539 Checker$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 00:19:42,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:19:46,172 WARN L539 Checker$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 00:19:50,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:19:54,198 WARN L539 Checker$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 00:19:58,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:20:02,606 WARN L539 Checker$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 00:20:06,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:20:10,609 WARN L539 Checker$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 00:20:14,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:20:18,889 WARN L539 Checker$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 00:20:22,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:20:26,939 WARN L539 Checker$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 00:20:30,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:20:34,952 WARN L539 Checker$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 00:20:38,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:20:43,130 WARN L539 Checker$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 00:20:47,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:20:51,133 WARN L539 Checker$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 00:20:55,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:20:59,137 WARN L539 Checker$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 00:21:02,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:06,288 WARN L539 Checker$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 00:21:10,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:14,291 WARN L539 Checker$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 00:21:14,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:21:14,306 INFO L93 Difference]: Finished difference Result 1155 states and 1230 transitions. [2023-11-29 00:21:14,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 00:21:14,306 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 46.333333333333336) internal successors, (417), 10 states have internal predecessors, (417), 8 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) Word has length 303 [2023-11-29 00:21:14,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:21:14,311 INFO L225 Difference]: With dead ends: 1155 [2023-11-29 00:21:14,311 INFO L226 Difference]: Without dead ends: 1150 [2023-11-29 00:21:14,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-29 00:21:14,312 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 1770 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 72 mSolverCounterUnsat, 60 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 251.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 60 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 251.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:21:14,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1781 Valid, 1166 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1297 Invalid, 60 Unknown, 0 Unchecked, 251.2s Time] [2023-11-29 00:21:14,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2023-11-29 00:21:14,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 755. [2023-11-29 00:21:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 655 states have (on average 1.1786259541984734) internal successors, (772), 699 states have internal predecessors, (772), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:21:14,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 880 transitions. [2023-11-29 00:21:14,366 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 880 transitions. Word has length 303 [2023-11-29 00:21:14,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:21:14,366 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 880 transitions. [2023-11-29 00:21:14,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 46.333333333333336) internal successors, (417), 10 states have internal predecessors, (417), 8 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 8 states have call predecessors, (38), 8 states have call successors, (38) [2023-11-29 00:21:14,367 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 880 transitions. [2023-11-29 00:21:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-11-29 00:21:14,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:21:14,369 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:21:14,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2023-11-29 00:21:14,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:21:14,569 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:21:14,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:21:14,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1177325451, now seen corresponding path program 3 times [2023-11-29 00:21:14,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:21:14,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126722153] [2023-11-29 00:21:14,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:14,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:21:14,585 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:21:14,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2111426309] [2023-11-29 00:21:14,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:21:14,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:21:14,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:21:14,587 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:21:14,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 00:21:14,669 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 00:21:14,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:21:14,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 00:21:14,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:21:16,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 00:21:16,785 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:21:17,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:21:17,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126722153] [2023-11-29 00:21:17,228 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:21:17,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111426309] [2023-11-29 00:21:17,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111426309] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:21:17,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:21:17,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-29 00:21:17,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900751302] [2023-11-29 00:21:17,228 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:21:17,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:21:17,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:21:17,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:21:17,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:21:17,230 INFO L87 Difference]: Start difference. First operand 755 states and 880 transitions. Second operand has 18 states, 17 states have (on average 13.470588235294118) internal successors, (229), 18 states have internal predecessors, (229), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 00:21:20,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:23,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:25,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:26,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:21:26,427 INFO L93 Difference]: Finished difference Result 775 states and 880 transitions. [2023-11-29 00:21:26,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 00:21:26,428 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.470588235294118) internal successors, (229), 18 states have internal predecessors, (229), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 331 [2023-11-29 00:21:26,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:21:26,433 INFO L225 Difference]: With dead ends: 775 [2023-11-29 00:21:26,433 INFO L226 Difference]: Without dead ends: 773 [2023-11-29 00:21:26,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2023-11-29 00:21:26,434 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 407 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 3482 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 3493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:21:26,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 492 Invalid, 3493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3482 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-11-29 00:21:26,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2023-11-29 00:21:26,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 755. [2023-11-29 00:21:26,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 655 states have (on average 1.1755725190839694) internal successors, (770), 699 states have internal predecessors, (770), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:21:26,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 878 transitions. [2023-11-29 00:21:26,520 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 878 transitions. Word has length 331 [2023-11-29 00:21:26,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:21:26,521 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 878 transitions. [2023-11-29 00:21:26,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.470588235294118) internal successors, (229), 18 states have internal predecessors, (229), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-29 00:21:26,521 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 878 transitions. [2023-11-29 00:21:26,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-11-29 00:21:26,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:21:26,523 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, 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] [2023-11-29 00:21:26,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 00:21:26,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:21:26,724 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:21:26,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:21:26,724 INFO L85 PathProgramCache]: Analyzing trace with hash 999756369, now seen corresponding path program 2 times [2023-11-29 00:21:26,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:21:26,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187744139] [2023-11-29 00:21:26,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:26,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:21:26,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:21:26,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [207491821] [2023-11-29 00:21:26,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:21:26,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:21:26,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:21:26,740 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:21:26,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 00:21:26,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:21:26,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:21:26,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:21:26,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:21:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 00:21:27,664 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:21:28,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:21:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187744139] [2023-11-29 00:21:28,162 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:21:28,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207491821] [2023-11-29 00:21:28,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207491821] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:21:28,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:21:28,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 00:21:28,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887818734] [2023-11-29 00:21:28,162 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:21:28,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:21:28,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:21:28,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:21:28,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:21:28,164 INFO L87 Difference]: Start difference. First operand 755 states and 878 transitions. Second operand has 11 states, 10 states have (on average 23.2) internal successors, (232), 11 states have internal predecessors, (232), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 00:21:29,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:21:29,859 INFO L93 Difference]: Finished difference Result 773 states and 878 transitions. [2023-11-29 00:21:29,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:21:29,859 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 23.2) internal successors, (232), 11 states have internal predecessors, (232), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 334 [2023-11-29 00:21:29,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:21:29,862 INFO L225 Difference]: With dead ends: 773 [2023-11-29 00:21:29,862 INFO L226 Difference]: Without dead ends: 766 [2023-11-29 00:21:29,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-11-29 00:21:29,863 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 112 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1843 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:21:29,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1039 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1843 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 00:21:29,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-11-29 00:21:29,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 755. [2023-11-29 00:21:29,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 655 states have (on average 1.164885496183206) internal successors, (763), 699 states have internal predecessors, (763), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:21:29,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 871 transitions. [2023-11-29 00:21:29,927 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 871 transitions. Word has length 334 [2023-11-29 00:21:29,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:21:29,927 INFO L495 AbstractCegarLoop]: Abstraction has 755 states and 871 transitions. [2023-11-29 00:21:29,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 23.2) internal successors, (232), 11 states have internal predecessors, (232), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 00:21:29,928 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 871 transitions. [2023-11-29 00:21:29,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-11-29 00:21:29,929 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:21:29,930 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, 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] [2023-11-29 00:21:29,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 00:21:30,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:21:30,130 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:21:30,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:21:30,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1222016621, now seen corresponding path program 1 times [2023-11-29 00:21:30,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:21:30,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585360519] [2023-11-29 00:21:30,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:30,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:21:30,145 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:21:30,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [682170070] [2023-11-29 00:21:30,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:30,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:21:30,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:21:30,146 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:21:30,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 00:21:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:30,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:21:30,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:21:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1182 backedges. 59 proven. 283 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2023-11-29 00:21:31,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:21:32,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:21:32,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585360519] [2023-11-29 00:21:32,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:21:32,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682170070] [2023-11-29 00:21:32,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682170070] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:21:32,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:21:32,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 00:21:32,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210005821] [2023-11-29 00:21:32,232 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:21:32,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 00:21:32,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:21:32,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 00:21:32,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 00:21:32,233 INFO L87 Difference]: Start difference. First operand 755 states and 871 transitions. Second operand has 10 states, 9 states have (on average 26.333333333333332) internal successors, (237), 10 states have internal predecessors, (237), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 00:21:39,595 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 00:21:42,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:47,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:49,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:51,873 WARN L539 Checker$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 00:21:53,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:54,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:56,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:21:58,577 WARN L539 Checker$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 00:21:59,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:21:59,234 INFO L93 Difference]: Finished difference Result 755 states and 871 transitions. [2023-11-29 00:21:59,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 00:21:59,234 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 26.333333333333332) internal successors, (237), 10 states have internal predecessors, (237), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 339 [2023-11-29 00:21:59,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:21:59,238 INFO L225 Difference]: With dead ends: 755 [2023-11-29 00:21:59,238 INFO L226 Difference]: Without dead ends: 754 [2023-11-29 00:21:59,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:21:59,239 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 372 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2023-11-29 00:21:59,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 709 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 26.6s Time] [2023-11-29 00:21:59,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-11-29 00:21:59,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2023-11-29 00:21:59,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 655 states have (on average 1.1603053435114503) internal successors, (760), 698 states have internal predecessors, (760), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:21:59,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 868 transitions. [2023-11-29 00:21:59,298 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 868 transitions. Word has length 339 [2023-11-29 00:21:59,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:21:59,298 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 868 transitions. [2023-11-29 00:21:59,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 26.333333333333332) internal successors, (237), 10 states have internal predecessors, (237), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-11-29 00:21:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 868 transitions. [2023-11-29 00:21:59,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2023-11-29 00:21:59,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:21:59,300 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, 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] [2023-11-29 00:21:59,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2023-11-29 00:21:59,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 00:21:59,500 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:21:59,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:21:59,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1506132758, now seen corresponding path program 1 times [2023-11-29 00:21:59,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:21:59,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670281293] [2023-11-29 00:21:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:59,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:21:59,513 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:21:59,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043968783] [2023-11-29 00:21:59,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:21:59,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:21:59,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:21:59,514 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:21:59,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 00:21:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:21:59,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 00:21:59,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 0 proven. 342 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 00:22:00,252 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:22:00,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:00,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670281293] [2023-11-29 00:22:00,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:00,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043968783] [2023-11-29 00:22:00,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043968783] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:22:00,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:22:00,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 00:22:00,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242915559] [2023-11-29 00:22:00,769 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:22:00,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 00:22:00,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:00,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 00:22:00,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:22:00,771 INFO L87 Difference]: Start difference. First operand 754 states and 868 transitions. Second operand has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 5 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 00:22:02,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:02,681 INFO L93 Difference]: Finished difference Result 764 states and 868 transitions. [2023-11-29 00:22:02,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:22:02,681 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 5 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 347 [2023-11-29 00:22:02,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:02,685 INFO L225 Difference]: With dead ends: 764 [2023-11-29 00:22:02,686 INFO L226 Difference]: Without dead ends: 763 [2023-11-29 00:22:02,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:22:02,686 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 114 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 2450 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:02,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 892 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2450 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-29 00:22:02,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2023-11-29 00:22:02,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 754. [2023-11-29 00:22:02,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 655 states have (on average 1.1587786259541986) internal successors, (759), 698 states have internal predecessors, (759), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:22:02,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 867 transitions. [2023-11-29 00:22:02,742 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 867 transitions. Word has length 347 [2023-11-29 00:22:02,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:02,743 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 867 transitions. [2023-11-29 00:22:02,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 24.0) internal successors, (240), 11 states have internal predecessors, (240), 5 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 00:22:02,743 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 867 transitions. [2023-11-29 00:22:02,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-11-29 00:22:02,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:02,744 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 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, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-11-29 00:22:02,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 00:22:02,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:02,945 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:22:02,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:02,945 INFO L85 PathProgramCache]: Analyzing trace with hash 534403728, now seen corresponding path program 2 times [2023-11-29 00:22:02,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:02,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559576853] [2023-11-29 00:22:02,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:02,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:02,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:02,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609737085] [2023-11-29 00:22:02,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:22:02,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:02,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:02,960 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:02,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 00:22:03,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:22:03,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:22:03,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:22:03,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:03,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1374 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 00:22:03,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:22:03,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:03,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559576853] [2023-11-29 00:22:03,408 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:03,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609737085] [2023-11-29 00:22:03,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609737085] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:22:03,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:22:03,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 00:22:03,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918237785] [2023-11-29 00:22:03,409 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:22:03,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:22:03,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:03,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:22:03,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:22:03,410 INFO L87 Difference]: Start difference. First operand 754 states and 867 transitions. Second operand has 7 states, 6 states have (on average 41.5) internal successors, (249), 7 states have internal predecessors, (249), 5 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 00:22:03,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:03,625 INFO L93 Difference]: Finished difference Result 865 states and 955 transitions. [2023-11-29 00:22:03,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:22:03,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 41.5) internal successors, (249), 7 states have internal predecessors, (249), 5 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) Word has length 356 [2023-11-29 00:22:03,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:03,630 INFO L225 Difference]: With dead ends: 865 [2023-11-29 00:22:03,630 INFO L226 Difference]: Without dead ends: 864 [2023-11-29 00:22:03,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:22:03,631 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 284 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:03,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 680 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:22:03,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2023-11-29 00:22:03,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 754. [2023-11-29 00:22:03,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 655 states have (on average 1.1572519083969466) internal successors, (758), 698 states have internal predecessors, (758), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:22:03,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 866 transitions. [2023-11-29 00:22:03,691 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 866 transitions. Word has length 356 [2023-11-29 00:22:03,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:03,691 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 866 transitions. [2023-11-29 00:22:03,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 41.5) internal successors, (249), 7 states have internal predecessors, (249), 5 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 5 states have call predecessors, (22), 5 states have call successors, (22) [2023-11-29 00:22:03,691 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 866 transitions. [2023-11-29 00:22:03,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2023-11-29 00:22:03,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:03,693 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, 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] [2023-11-29 00:22:03,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 00:22:03,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 00:22:03,893 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:22:03,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:03,894 INFO L85 PathProgramCache]: Analyzing trace with hash 521299621, now seen corresponding path program 1 times [2023-11-29 00:22:03,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:03,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850798814] [2023-11-29 00:22:03,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:03,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:03,907 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:03,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001071802] [2023-11-29 00:22:03,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:03,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:03,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:03,908 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:03,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 00:22:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:22:04,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 00:22:04,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 342 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 00:22:04,265 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:22:04,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:04,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850798814] [2023-11-29 00:22:04,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:04,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001071802] [2023-11-29 00:22:04,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001071802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:22:04,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:22:04,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 00:22:04,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518026318] [2023-11-29 00:22:04,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:22:04,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:22:04,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:04,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:22:04,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:22:04,272 INFO L87 Difference]: Start difference. First operand 754 states and 866 transitions. Second operand has 7 states, 6 states have (on average 41.833333333333336) internal successors, (251), 7 states have internal predecessors, (251), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-29 00:22:05,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:05,433 INFO L93 Difference]: Finished difference Result 754 states and 866 transitions. [2023-11-29 00:22:05,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:22:05,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 41.833333333333336) internal successors, (251), 7 states have internal predecessors, (251), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 358 [2023-11-29 00:22:05,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:05,438 INFO L225 Difference]: With dead ends: 754 [2023-11-29 00:22:05,439 INFO L226 Difference]: Without dead ends: 752 [2023-11-29 00:22:05,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 352 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 00:22:05,439 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 373 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:05,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 382 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 00:22:05,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-11-29 00:22:05,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2023-11-29 00:22:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 655 states have (on average 1.151145038167939) internal successors, (754), 696 states have internal predecessors, (754), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:22:05,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 862 transitions. [2023-11-29 00:22:05,496 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 862 transitions. Word has length 358 [2023-11-29 00:22:05,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:05,496 INFO L495 AbstractCegarLoop]: Abstraction has 752 states and 862 transitions. [2023-11-29 00:22:05,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 41.833333333333336) internal successors, (251), 7 states have internal predecessors, (251), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-29 00:22:05,496 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 862 transitions. [2023-11-29 00:22:05,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2023-11-29 00:22:05,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:05,498 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, 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] [2023-11-29 00:22:05,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 00:22:05,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:05,698 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:22:05,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:05,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1019580702, now seen corresponding path program 2 times [2023-11-29 00:22:05,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:05,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495034291] [2023-11-29 00:22:05,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:05,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:05,715 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:05,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037073255] [2023-11-29 00:22:05,715 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:22:05,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:05,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:05,716 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:05,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 00:22:05,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:22:05,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:22:05,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 00:22:05,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:22:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 59 proven. 283 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-11-29 00:22:06,327 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:22:06,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:22:06,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495034291] [2023-11-29 00:22:06,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:22:06,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037073255] [2023-11-29 00:22:06,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037073255] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:22:06,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:22:06,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 00:22:06,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148856851] [2023-11-29 00:22:06,408 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:22:06,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:22:06,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:22:06,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:22:06,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:22:06,409 INFO L87 Difference]: Start difference. First operand 752 states and 862 transitions. Second operand has 9 states, 8 states have (on average 31.5) internal successors, (252), 9 states have internal predecessors, (252), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-29 00:22:09,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:22:09,485 INFO L93 Difference]: Finished difference Result 752 states and 862 transitions. [2023-11-29 00:22:09,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 00:22:09,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 31.5) internal successors, (252), 9 states have internal predecessors, (252), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 359 [2023-11-29 00:22:09,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:22:09,489 INFO L225 Difference]: With dead ends: 752 [2023-11-29 00:22:09,489 INFO L226 Difference]: Without dead ends: 750 [2023-11-29 00:22:09,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:22:09,489 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 600 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 00:22:09,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [600 Valid, 580 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 00:22:09,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-11-29 00:22:09,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-11-29 00:22:09,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 655 states have (on average 1.1450381679389312) internal successors, (750), 694 states have internal predecessors, (750), 54 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-29 00:22:09,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 858 transitions. [2023-11-29 00:22:09,553 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 858 transitions. Word has length 359 [2023-11-29 00:22:09,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:22:09,553 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 858 transitions. [2023-11-29 00:22:09,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 31.5) internal successors, (252), 9 states have internal predecessors, (252), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-29 00:22:09,554 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 858 transitions. [2023-11-29 00:22:09,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-11-29 00:22:09,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:22:09,555 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, 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, 1, 1, 1, 1] [2023-11-29 00:22:09,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2023-11-29 00:22:09,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:09,756 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:22:09,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:22:09,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1826077037, now seen corresponding path program 3 times [2023-11-29 00:22:09,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:22:09,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254075987] [2023-11-29 00:22:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:22:09,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:22:09,768 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:22:09,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785489531] [2023-11-29 00:22:09,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:22:09,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:22:09,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:22:09,769 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:22:09,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 00:22:09,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 00:22:09,895 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:22:09,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 00:22:09,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:08,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 174 proven. 129 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2023-11-29 00:23:08,879 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:23,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:23,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254075987] [2023-11-29 00:23:23,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:23,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785489531] [2023-11-29 00:23:23,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785489531] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:23,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:23,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 00:23:23,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165625981] [2023-11-29 00:23:23,880 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:23,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 00:23:23,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:23,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 00:23:23,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:23:23,881 INFO L87 Difference]: Start difference. First operand 750 states and 858 transitions. Second operand has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 12 states have internal predecessors, (95), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 00:23:51,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 00:23:55,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:55,045 INFO L93 Difference]: Finished difference Result 752 states and 860 transitions. [2023-11-29 00:23:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:23:55,046 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 12 states have internal predecessors, (95), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 363 [2023-11-29 00:23:55,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:55,048 INFO L225 Difference]: With dead ends: 752 [2023-11-29 00:23:55,048 INFO L226 Difference]: Without dead ends: 739 [2023-11-29 00:23:55,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 35.4s TimeCoverageRelationStatistics Valid=281, Invalid=841, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:23:55,049 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 967 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:55,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 169 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-11-29 00:23:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2023-11-29 00:23:55,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 710. [2023-11-29 00:23:55,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 630 states have (on average 1.1015873015873017) internal successors, (694), 656 states have internal predecessors, (694), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-29 00:23:55,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 798 transitions. [2023-11-29 00:23:55,123 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 798 transitions. Word has length 363 [2023-11-29 00:23:55,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:55,123 INFO L495 AbstractCegarLoop]: Abstraction has 710 states and 798 transitions. [2023-11-29 00:23:55,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.916666666666667) internal successors, (95), 12 states have internal predecessors, (95), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 00:23:55,123 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 798 transitions. [2023-11-29 00:23:55,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-29 00:23:55,124 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:55,125 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, 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, 1, 1] [2023-11-29 00:23:55,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2023-11-29 00:23:55,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:55,325 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:23:55,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:55,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1781588529, now seen corresponding path program 3 times [2023-11-29 00:23:55,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:55,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840251438] [2023-11-29 00:23:55,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:55,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:55,341 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:55,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2082744644] [2023-11-29 00:23:55,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:23:55,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:55,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:55,342 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:55,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 00:23:55,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 00:23:55,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:23:55,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:23:55,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1482 backedges. 66 proven. 128 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2023-11-29 00:23:56,024 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:23:56,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:23:56,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840251438] [2023-11-29 00:23:56,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:23:56,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082744644] [2023-11-29 00:23:56,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082744644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:23:56,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:23:56,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 00:23:56,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065518334] [2023-11-29 00:23:56,226 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:23:56,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:23:56,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:23:56,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:23:56,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:23:56,227 INFO L87 Difference]: Start difference. First operand 710 states and 798 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 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 00:23:58,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:23:58,705 INFO L93 Difference]: Finished difference Result 710 states and 798 transitions. [2023-11-29 00:23:58,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 00:23:58,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 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 365 [2023-11-29 00:23:58,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:23:58,708 INFO L225 Difference]: With dead ends: 710 [2023-11-29 00:23:58,708 INFO L226 Difference]: Without dead ends: 708 [2023-11-29 00:23:58,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:23:58,708 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 476 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:23:58,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 365 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 00:23:58,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2023-11-29 00:23:58,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2023-11-29 00:23:58,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 630 states have (on average 1.092063492063492) internal successors, (688), 654 states have internal predecessors, (688), 52 states have call successors, (52), 1 states have call predecessors, (52), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-29 00:23:58,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 792 transitions. [2023-11-29 00:23:58,778 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 792 transitions. Word has length 365 [2023-11-29 00:23:58,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:23:58,778 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 792 transitions. [2023-11-29 00:23:58,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 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 00:23:58,779 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 792 transitions. [2023-11-29 00:23:58,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-29 00:23:58,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:23:58,780 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, 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, 1, 1] [2023-11-29 00:23:58,784 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 00:23:58,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:58,981 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:23:58,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:23:58,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1165281645, now seen corresponding path program 1 times [2023-11-29 00:23:58,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:23:58,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644159178] [2023-11-29 00:23:58,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:58,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:23:58,993 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:23:58,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1856015280] [2023-11-29 00:23:58,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:23:58,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:23:58,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:23:58,995 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:23:58,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 00:23:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:23:59,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 00:23:59,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:23:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1498 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-29 00:23:59,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1498 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-29 00:24:00,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:00,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644159178] [2023-11-29 00:24:00,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:00,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856015280] [2023-11-29 00:24:00,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856015280] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:24:00,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 00:24:00,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-11-29 00:24:00,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754671474] [2023-11-29 00:24:00,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:00,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 00:24:00,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:00,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 00:24:00,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=191, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:24:00,171 INFO L87 Difference]: Start difference. First operand 708 states and 792 transitions. Second operand has 18 states, 17 states have (on average 29.941176470588236) internal successors, (509), 18 states have internal predecessors, (509), 10 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) [2023-11-29 00:24:02,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:02,648 INFO L93 Difference]: Finished difference Result 1200 states and 1287 transitions. [2023-11-29 00:24:02,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 00:24:02,649 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 29.941176470588236) internal successors, (509), 18 states have internal predecessors, (509), 10 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) Word has length 369 [2023-11-29 00:24:02,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:02,651 INFO L225 Difference]: With dead ends: 1200 [2023-11-29 00:24:02,651 INFO L226 Difference]: Without dead ends: 1197 [2023-11-29 00:24:02,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 720 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=384, Invalid=546, Unknown=0, NotChecked=0, Total=930 [2023-11-29 00:24:02,652 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 2680 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1629 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:02,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 787 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1629 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 00:24:02,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2023-11-29 00:24:02,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 756. [2023-11-29 00:24:02,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 676 states have (on average 1.0710059171597632) internal successors, (724), 698 states have internal predecessors, (724), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2023-11-29 00:24:02,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 836 transitions. [2023-11-29 00:24:02,731 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 836 transitions. Word has length 369 [2023-11-29 00:24:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:02,731 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 836 transitions. [2023-11-29 00:24:02,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 29.941176470588236) internal successors, (509), 18 states have internal predecessors, (509), 10 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 10 states have call predecessors, (46), 10 states have call successors, (46) [2023-11-29 00:24:02,731 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 836 transitions. [2023-11-29 00:24:02,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2023-11-29 00:24:02,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:02,733 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, 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, 1, 1] [2023-11-29 00:24:02,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 00:24:02,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 00:24:02,933 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:24:02,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:02,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1763992522, now seen corresponding path program 2 times [2023-11-29 00:24:02,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:02,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146785792] [2023-11-29 00:24:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:02,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:02,951 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:02,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991525264] [2023-11-29 00:24:02,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:24:02,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:02,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:02,953 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:02,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 00:24:03,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:24:03,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:24:03,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-29 00:24:03,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:04,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1502 backedges. 0 proven. 490 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-29 00:24:04,238 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:05,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:05,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146785792] [2023-11-29 00:24:05,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:05,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991525264] [2023-11-29 00:24:05,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991525264] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:24:05,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:24:05,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 00:24:05,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680305817] [2023-11-29 00:24:05,843 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:05,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 00:24:05,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:05,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 00:24:05,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:24:05,845 INFO L87 Difference]: Start difference. First operand 756 states and 836 transitions. Second operand has 15 states, 14 states have (on average 18.428571428571427) internal successors, (258), 15 states have internal predecessors, (258), 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 00:24:08,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:08,149 INFO L93 Difference]: Finished difference Result 870 states and 945 transitions. [2023-11-29 00:24:08,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:24:08,149 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 18.428571428571427) internal successors, (258), 15 states have internal predecessors, (258), 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 370 [2023-11-29 00:24:08,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:08,151 INFO L225 Difference]: With dead ends: 870 [2023-11-29 00:24:08,151 INFO L226 Difference]: Without dead ends: 834 [2023-11-29 00:24:08,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:24:08,152 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 243 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 3788 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 3797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:08,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1853 Invalid, 3797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 3788 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 00:24:08,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2023-11-29 00:24:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 814. [2023-11-29 00:24:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 731 states have (on average 1.0779753761969904) internal successors, (788), 753 states have internal predecessors, (788), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2023-11-29 00:24:08,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 906 transitions. [2023-11-29 00:24:08,233 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 906 transitions. Word has length 370 [2023-11-29 00:24:08,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:08,233 INFO L495 AbstractCegarLoop]: Abstraction has 814 states and 906 transitions. [2023-11-29 00:24:08,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 18.428571428571427) internal successors, (258), 15 states have internal predecessors, (258), 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 00:24:08,234 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 906 transitions. [2023-11-29 00:24:08,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-11-29 00:24:08,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:08,235 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, 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, 1, 1] [2023-11-29 00:24:08,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 00:24:08,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2023-11-29 00:24:08,436 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:24:08,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:08,436 INFO L85 PathProgramCache]: Analyzing trace with hash -906014027, now seen corresponding path program 1 times [2023-11-29 00:24:08,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:08,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360483322] [2023-11-29 00:24:08,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:08,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:08,451 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:08,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387433993] [2023-11-29 00:24:08,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:08,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:08,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:08,452 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:08,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 00:24:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:24:08,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 00:24:08,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:24:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1354 backedges. 122 proven. 286 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-29 00:24:19,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:24:20,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:24:20,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360483322] [2023-11-29 00:24:20,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 00:24:20,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387433993] [2023-11-29 00:24:20,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387433993] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:24:20,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:24:20,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-29 00:24:20,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205645468] [2023-11-29 00:24:20,610 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 00:24:20,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 00:24:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:24:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 00:24:20,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2023-11-29 00:24:20,611 INFO L87 Difference]: Start difference. First operand 814 states and 906 transitions. Second operand has 17 states, 16 states have (on average 16.6875) internal successors, (267), 17 states have internal predecessors, (267), 6 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2023-11-29 00:24:30,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:24:30,169 INFO L93 Difference]: Finished difference Result 814 states and 906 transitions. [2023-11-29 00:24:30,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 00:24:30,169 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 16.6875) internal successors, (267), 17 states have internal predecessors, (267), 6 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) Word has length 376 [2023-11-29 00:24:30,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:24:30,171 INFO L225 Difference]: With dead ends: 814 [2023-11-29 00:24:30,171 INFO L226 Difference]: Without dead ends: 713 [2023-11-29 00:24:30,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2023-11-29 00:24:30,172 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 749 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 2743 mSolverCounterSat, 74 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 2819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 2743 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:24:30,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 324 Invalid, 2819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 2743 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2023-11-29 00:24:30,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-11-29 00:24:30,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 655. [2023-11-29 00:24:30,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 592 states have (on average 1.0304054054054055) internal successors, (610), 602 states have internal predecessors, (610), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-11-29 00:24:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 712 transitions. [2023-11-29 00:24:30,239 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 712 transitions. Word has length 376 [2023-11-29 00:24:30,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:24:30,240 INFO L495 AbstractCegarLoop]: Abstraction has 655 states and 712 transitions. [2023-11-29 00:24:30,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 16.6875) internal successors, (267), 17 states have internal predecessors, (267), 6 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 6 states have call predecessors, (23), 6 states have call successors, (23) [2023-11-29 00:24:30,240 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 712 transitions. [2023-11-29 00:24:30,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2023-11-29 00:24:30,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:24:30,242 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:24:30,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 00:24:30,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2023-11-29 00:24:30,442 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2023-11-29 00:24:30,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:24:30,443 INFO L85 PathProgramCache]: Analyzing trace with hash 825384264, now seen corresponding path program 3 times [2023-11-29 00:24:30,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:24:30,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919381151] [2023-11-29 00:24:30,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:24:30,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:24:30,460 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 00:24:30,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [503213548] [2023-11-29 00:24:30,460 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:24:30,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:24:30,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:24:30,461 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:24:30,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_410d387c-010e-4fc8-9f7b-f100070279c9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 00:24:30,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 00:24:30,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:24:30,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 56 conjunts are in the unsatisfiable core [2023-11-29 00:24:30,916 INFO L285 TraceCheckSpWp]: Computing forward predicates...