./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.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_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/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_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/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_bcf361c5-a003-4778-87b7-45175db734be/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 fc77cb5fe4af5100e01bafbf150d5df54332b351a9f9d4040d6b54bbf20f5710 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:41:45,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:41:45,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 03:41:45,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:41:45,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:41:45,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:41:45,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:41:45,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:41:45,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:41:45,421 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:41:45,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:41:45,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:41:45,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:41:45,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:41:45,425 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:41:45,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:41:45,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:41:45,426 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:41:45,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:41:45,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:41:45,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:41:45,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:41:45,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:41:45,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:41:45,431 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 03:41:45,431 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:41:45,432 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:41:45,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:41:45,433 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:41:45,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:41:45,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:41:45,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:41:45,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:41:45,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:41:45,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:41:45,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:41:45,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:41:45,436 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:41:45,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:41:45,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:41:45,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:41:45,437 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:41:45,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:41:45,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:41:45,438 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_bcf361c5-a003-4778-87b7-45175db734be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc77cb5fe4af5100e01bafbf150d5df54332b351a9f9d4040d6b54bbf20f5710 [2023-11-29 03:41:45,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:41:45,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:41:45,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:41:45,724 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:41:45,724 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:41:45,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2023-11-29 03:41:49,124 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:41:49,322 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:41:49,323 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2023-11-29 03:41:49,331 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/data/e78245904/8b5924bf354d430fbc70848afafa9e10/FLAG3c64e18ab [2023-11-29 03:41:49,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/data/e78245904/8b5924bf354d430fbc70848afafa9e10 [2023-11-29 03:41:49,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:41:49,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:41:49,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:41:49,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:41:49,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:41:49,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c6a2c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49, skipping insertion in model container [2023-11-29 03:41:49,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,387 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:41:49,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:41:49,577 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:41:49,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:41:49,616 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:41:49,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49 WrapperNode [2023-11-29 03:41:49,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:41:49,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:41:49,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:41:49,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:41:49,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,660 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2023-11-29 03:41:49,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:41:49,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:41:49,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:41:49,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:41:49,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,676 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,691 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 03:41:49,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,706 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:41:49,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:41:49,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:41:49,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:41:49,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (1/1) ... [2023-11-29 03:41:49,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:41:49,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:49,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:41:49,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:41:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:41:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:41:49,787 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:41:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:41:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:41:49,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:41:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 03:41:49,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 03:41:49,858 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:41:49,861 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:41:50,176 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:41:50,208 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:41:50,209 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 03:41:50,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:41:50 BoogieIcfgContainer [2023-11-29 03:41:50,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:41:50,214 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:41:50,214 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:41:50,218 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:41:50,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:41:49" (1/3) ... [2023-11-29 03:41:50,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65aebc25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:41:50, skipping insertion in model container [2023-11-29 03:41:50,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:41:49" (2/3) ... [2023-11-29 03:41:50,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65aebc25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:41:50, skipping insertion in model container [2023-11-29 03:41:50,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:41:50" (3/3) ... [2023-11-29 03:41:50,223 INFO L112 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound5.c [2023-11-29 03:41:50,249 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:41:50,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-29 03:41:50,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:41:50,324 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;@1280bc8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:41:50,324 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-29 03:41:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-29 03:41:50,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 03:41:50,339 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:50,340 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:41:50,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:50,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:50,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1812025852, now seen corresponding path program 1 times [2023-11-29 03:41:50,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:50,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334659408] [2023-11-29 03:41:50,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:50,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:50,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:50,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334659408] [2023-11-29 03:41:50,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 03:41:50,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206202598] [2023-11-29 03:41:50,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:50,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:50,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:50,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:50,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:41:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:50,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 03:41:50,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:50,617 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 03:41:50,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:50,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206202598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:50,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:50,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:41:50,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278009788] [2023-11-29 03:41:50,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:50,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 03:41:50,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:50,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 03:41:50,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 03:41:50,670 INFO L87 Difference]: Start difference. First operand has 87 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:41:50,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:50,714 INFO L93 Difference]: Finished difference Result 172 states and 211 transitions. [2023-11-29 03:41:50,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:41:50,717 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-29 03:41:50,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:50,727 INFO L225 Difference]: With dead ends: 172 [2023-11-29 03:41:50,728 INFO L226 Difference]: Without dead ends: 84 [2023-11-29 03:41:50,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 03:41:50,737 INFO L413 NwaCegarLoop]: 94 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, 94 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 03:41:50,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:41:50,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-29 03:41:50,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-29 03:41:50,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 43 states have (on average 1.7209302325581395) internal successors, (74), 72 states have internal predecessors, (74), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:41:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2023-11-29 03:41:50,820 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 20 [2023-11-29 03:41:50,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:50,821 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2023-11-29 03:41:50,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:41:50,821 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2023-11-29 03:41:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-29 03:41:50,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:50,823 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:41:50,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:41:51,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 03:41:51,028 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:51,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash 982000830, now seen corresponding path program 1 times [2023-11-29 03:41:51,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:51,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220820278] [2023-11-29 03:41:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:51,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:51,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:51,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800542880] [2023-11-29 03:41:51,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:51,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:51,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:51,059 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:51,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:41:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:51,117 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:41:51,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:41:51,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:51,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:51,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220820278] [2023-11-29 03:41:51,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:51,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800542880] [2023-11-29 03:41:51,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800542880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:51,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:51,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:41:51,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112186098] [2023-11-29 03:41:51,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:51,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:41:51,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:51,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:41:51,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:41:51,270 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:41:51,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:51,495 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2023-11-29 03:41:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:41:51,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-29 03:41:51,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:51,498 INFO L225 Difference]: With dead ends: 84 [2023-11-29 03:41:51,498 INFO L226 Difference]: Without dead ends: 78 [2023-11-29 03:41:51,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:41:51,501 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 116 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:51,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 132 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:41:51,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-29 03:41:51,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-29 03:41:51,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 43 states have (on average 1.5813953488372092) internal successors, (68), 66 states have internal predecessors, (68), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:41:51,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 86 transitions. [2023-11-29 03:41:51,519 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 86 transitions. Word has length 20 [2023-11-29 03:41:51,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:51,520 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 86 transitions. [2023-11-29 03:41:51,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:41:51,521 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 86 transitions. [2023-11-29 03:41:51,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 03:41:51,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:51,522 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:41:51,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:41:51,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 03:41:51,729 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:51,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:51,730 INFO L85 PathProgramCache]: Analyzing trace with hash 377254708, now seen corresponding path program 1 times [2023-11-29 03:41:51,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:51,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082563489] [2023-11-29 03:41:51,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:51,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:51,749 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:51,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432853319] [2023-11-29 03:41:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:51,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:51,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:51,751 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:51,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:41:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:51,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:41:51,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:51,910 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:41:51,910 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:51,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:51,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082563489] [2023-11-29 03:41:51,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:51,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432853319] [2023-11-29 03:41:51,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432853319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:51,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:51,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:41:51,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803666275] [2023-11-29 03:41:51,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:51,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:41:51,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:51,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:41:51,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:41:51,914 INFO L87 Difference]: Start difference. First operand 78 states and 86 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:41:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:52,186 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2023-11-29 03:41:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:41:52,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-11-29 03:41:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:52,195 INFO L225 Difference]: With dead ends: 101 [2023-11-29 03:41:52,196 INFO L226 Difference]: Without dead ends: 100 [2023-11-29 03:41:52,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:41:52,199 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 156 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:52,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 155 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:41:52,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-29 03:41:52,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 81. [2023-11-29 03:41:52,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 69 states have internal predecessors, (71), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 03:41:52,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2023-11-29 03:41:52,213 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 21 [2023-11-29 03:41:52,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:52,214 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2023-11-29 03:41:52,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 03:41:52,214 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2023-11-29 03:41:52,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:41:52,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:52,215 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] [2023-11-29 03:41:52,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 03:41:52,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:52,416 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:52,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:52,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1646507377, now seen corresponding path program 1 times [2023-11-29 03:41:52,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:52,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729359647] [2023-11-29 03:41:52,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:52,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:52,429 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:52,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1410010239] [2023-11-29 03:41:52,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:52,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:52,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:52,430 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:52,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:41:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:52,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:41:52,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:41:52,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:52,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:52,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729359647] [2023-11-29 03:41:52,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:52,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410010239] [2023-11-29 03:41:52,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410010239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:52,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:52,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:41:52,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578102045] [2023-11-29 03:41:52,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:52,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:41:52,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:52,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:41:52,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:41:52,592 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:41:52,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:52,825 INFO L93 Difference]: Finished difference Result 138 states and 156 transitions. [2023-11-29 03:41:52,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:41:52,826 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 27 [2023-11-29 03:41:52,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:52,828 INFO L225 Difference]: With dead ends: 138 [2023-11-29 03:41:52,828 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 03:41:52,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:41:52,830 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 221 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:52,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 146 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:41:52,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 03:41:52,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 111. [2023-11-29 03:41:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 70 states have (on average 1.5714285714285714) internal successors, (110), 93 states have internal predecessors, (110), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:41:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 140 transitions. [2023-11-29 03:41:52,852 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 140 transitions. Word has length 27 [2023-11-29 03:41:52,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:52,852 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 140 transitions. [2023-11-29 03:41:52,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:41:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 140 transitions. [2023-11-29 03:41:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 03:41:52,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:52,854 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] [2023-11-29 03:41:52,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:41:53,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:53,060 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:53,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:53,061 INFO L85 PathProgramCache]: Analyzing trace with hash 497878920, now seen corresponding path program 1 times [2023-11-29 03:41:53,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:53,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714390123] [2023-11-29 03:41:53,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:53,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:53,080 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:53,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334300594] [2023-11-29 03:41:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:53,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:53,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:53,082 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:53,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:41:53,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:53,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:41:53,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:41:53,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:53,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:53,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714390123] [2023-11-29 03:41:53,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:53,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334300594] [2023-11-29 03:41:53,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334300594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:53,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:53,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:41:53,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290527004] [2023-11-29 03:41:53,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:53,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:41:53,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:53,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:41:53,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:41:53,274 INFO L87 Difference]: Start difference. First operand 111 states and 140 transitions. Second operand has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:41:53,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:53,500 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2023-11-29 03:41:53,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:41:53,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2023-11-29 03:41:53,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:53,503 INFO L225 Difference]: With dead ends: 138 [2023-11-29 03:41:53,503 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 03:41:53,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:41:53,505 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 156 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:53,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 160 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:41:53,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 03:41:53,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 112. [2023-11-29 03:41:53,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 94 states have internal predecessors, (109), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:41:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 139 transitions. [2023-11-29 03:41:53,522 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 139 transitions. Word has length 28 [2023-11-29 03:41:53,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:53,523 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 139 transitions. [2023-11-29 03:41:53,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 03:41:53,523 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 139 transitions. [2023-11-29 03:41:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 03:41:53,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:53,525 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] [2023-11-29 03:41:53,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 03:41:53,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:53,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:53,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:53,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1745622607, now seen corresponding path program 1 times [2023-11-29 03:41:53,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:53,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738555349] [2023-11-29 03:41:53,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:53,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:53,742 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:53,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [587174636] [2023-11-29 03:41:53,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:53,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:53,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:53,744 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:53,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 03:41:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:53,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:41:53,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:53,883 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:41:53,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:41:54,051 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 03:41:54,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:54,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738555349] [2023-11-29 03:41:54,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:54,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587174636] [2023-11-29 03:41:54,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587174636] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:41:54,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:41:54,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-29 03:41:54,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6090238] [2023-11-29 03:41:54,053 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:41:54,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:41:54,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:54,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:41:54,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:41:54,055 INFO L87 Difference]: Start difference. First operand 112 states and 139 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 03:41:54,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:54,448 INFO L93 Difference]: Finished difference Result 129 states and 146 transitions. [2023-11-29 03:41:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:41:54,449 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 29 [2023-11-29 03:41:54,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:54,451 INFO L225 Difference]: With dead ends: 129 [2023-11-29 03:41:54,451 INFO L226 Difference]: Without dead ends: 126 [2023-11-29 03:41:54,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:41:54,453 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 292 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:54,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 251 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:41:54,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-11-29 03:41:54,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 110. [2023-11-29 03:41:54,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 92 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:41:54,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 135 transitions. [2023-11-29 03:41:54,473 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 135 transitions. Word has length 29 [2023-11-29 03:41:54,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:54,474 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 135 transitions. [2023-11-29 03:41:54,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 03:41:54,475 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 135 transitions. [2023-11-29 03:41:54,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 03:41:54,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:54,476 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] [2023-11-29 03:41:54,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-29 03:41:54,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 03:41:54,683 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:54,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:54,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1720274090, now seen corresponding path program 1 times [2023-11-29 03:41:54,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:54,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579004111] [2023-11-29 03:41:54,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:54,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:54,700 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:54,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1649439584] [2023-11-29 03:41:54,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:54,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:54,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:54,702 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:54,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 03:41:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:54,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 03:41:54,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:54,957 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 03:41:54,957 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:54,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:54,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579004111] [2023-11-29 03:41:54,958 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:54,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649439584] [2023-11-29 03:41:54,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649439584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:54,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:54,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:41:54,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749076946] [2023-11-29 03:41:54,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:54,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:41:54,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:54,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:41:54,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:41:54,962 INFO L87 Difference]: Start difference. First operand 110 states and 135 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:41:55,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:55,260 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2023-11-29 03:41:55,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:41:55,261 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 30 [2023-11-29 03:41:55,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:55,263 INFO L225 Difference]: With dead ends: 126 [2023-11-29 03:41:55,263 INFO L226 Difference]: Without dead ends: 119 [2023-11-29 03:41:55,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:41:55,265 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 137 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:55,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 159 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:41:55,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-29 03:41:55,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 108. [2023-11-29 03:41:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 69 states have (on average 1.4492753623188406) internal successors, (100), 90 states have internal predecessors, (100), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 03:41:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 130 transitions. [2023-11-29 03:41:55,285 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 130 transitions. Word has length 30 [2023-11-29 03:41:55,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:55,285 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 130 transitions. [2023-11-29 03:41:55,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 03:41:55,286 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 130 transitions. [2023-11-29 03:41:55,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-29 03:41:55,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:55,287 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:41:55,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 03:41:55,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 03:41:55,488 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:55,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:55,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1734705951, now seen corresponding path program 1 times [2023-11-29 03:41:55,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:55,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170875723] [2023-11-29 03:41:55,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:55,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:55,504 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:55,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1567002496] [2023-11-29 03:41:55,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:55,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:55,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:55,506 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:55,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 03:41:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:55,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 03:41:55,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:55,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:41:55,664 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:41:55,822 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 03:41:55,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:55,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170875723] [2023-11-29 03:41:55,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:55,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567002496] [2023-11-29 03:41:55,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567002496] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:41:55,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:41:55,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 03:41:55,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983197466] [2023-11-29 03:41:55,825 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:41:55,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:41:55,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:55,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:41:55,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:41:55,828 INFO L87 Difference]: Start difference. First operand 108 states and 130 transitions. Second operand has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 03:41:56,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:56,349 INFO L93 Difference]: Finished difference Result 216 states and 249 transitions. [2023-11-29 03:41:56,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:41:56,350 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 39 [2023-11-29 03:41:56,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:56,352 INFO L225 Difference]: With dead ends: 216 [2023-11-29 03:41:56,353 INFO L226 Difference]: Without dead ends: 212 [2023-11-29 03:41:56,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:41:56,355 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 732 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:56,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 193 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:41:56,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-29 03:41:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 171. [2023-11-29 03:41:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 123 states have (on average 1.4227642276422765) internal successors, (175), 143 states have internal predecessors, (175), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-29 03:41:56,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 225 transitions. [2023-11-29 03:41:56,380 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 225 transitions. Word has length 39 [2023-11-29 03:41:56,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:56,381 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 225 transitions. [2023-11-29 03:41:56,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.8) internal successors, (38), 11 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 03:41:56,381 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 225 transitions. [2023-11-29 03:41:56,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 03:41:56,383 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:56,383 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:41:56,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 03:41:56,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 03:41:56,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:56,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:56,586 INFO L85 PathProgramCache]: Analyzing trace with hash -221741680, now seen corresponding path program 1 times [2023-11-29 03:41:56,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:56,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086489316] [2023-11-29 03:41:56,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:56,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:56,600 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:56,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296578011] [2023-11-29 03:41:56,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:56,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:56,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:56,602 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:56,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 03:41:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:56,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:41:56,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:41:56,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:56,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:56,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086489316] [2023-11-29 03:41:56,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:56,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296578011] [2023-11-29 03:41:56,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296578011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:56,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:56,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:41:56,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443906900] [2023-11-29 03:41:56,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:56,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:41:56,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:56,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:41:56,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:41:56,733 INFO L87 Difference]: Start difference. First operand 171 states and 225 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:41:56,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:56,907 INFO L93 Difference]: Finished difference Result 229 states and 292 transitions. [2023-11-29 03:41:56,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:41:56,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 59 [2023-11-29 03:41:56,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:56,911 INFO L225 Difference]: With dead ends: 229 [2023-11-29 03:41:56,911 INFO L226 Difference]: Without dead ends: 227 [2023-11-29 03:41:56,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 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 03:41:56,913 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 137 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:56,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 88 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:41:56,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-29 03:41:56,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 192. [2023-11-29 03:41:56,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 140 states have (on average 1.3928571428571428) internal successors, (195), 160 states have internal predecessors, (195), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:41:56,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 253 transitions. [2023-11-29 03:41:56,937 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 253 transitions. Word has length 59 [2023-11-29 03:41:56,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:56,938 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 253 transitions. [2023-11-29 03:41:56,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:41:56,938 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 253 transitions. [2023-11-29 03:41:56,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 03:41:56,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:56,940 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 03:41:56,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 03:41:57,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 03:41:57,141 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:57,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:57,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1715942605, now seen corresponding path program 1 times [2023-11-29 03:41:57,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:57,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315366041] [2023-11-29 03:41:57,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:57,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:57,156 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:57,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48376207] [2023-11-29 03:41:57,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:57,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:57,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:57,158 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:57,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 03:41:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:57,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:41:57,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:41:57,281 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:57,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:57,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315366041] [2023-11-29 03:41:57,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:57,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48376207] [2023-11-29 03:41:57,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48376207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:57,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:57,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:41:57,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042063117] [2023-11-29 03:41:57,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:57,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:41:57,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:57,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:41:57,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:41:57,286 INFO L87 Difference]: Start difference. First operand 192 states and 253 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:41:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:57,477 INFO L93 Difference]: Finished difference Result 229 states and 286 transitions. [2023-11-29 03:41:57,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:41:57,478 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2023-11-29 03:41:57,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:57,481 INFO L225 Difference]: With dead ends: 229 [2023-11-29 03:41:57,481 INFO L226 Difference]: Without dead ends: 227 [2023-11-29 03:41:57,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 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 03:41:57,483 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 132 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:57,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 90 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:41:57,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-29 03:41:57,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 193. [2023-11-29 03:41:57,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 161 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:41:57,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 249 transitions. [2023-11-29 03:41:57,514 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 249 transitions. Word has length 60 [2023-11-29 03:41:57,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:57,515 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 249 transitions. [2023-11-29 03:41:57,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:41:57,516 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 249 transitions. [2023-11-29 03:41:57,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 03:41:57,517 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:57,518 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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 03:41:57,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 03:41:57,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 03:41:57,720 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:57,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:57,720 INFO L85 PathProgramCache]: Analyzing trace with hash -246595163, now seen corresponding path program 1 times [2023-11-29 03:41:57,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:57,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737505673] [2023-11-29 03:41:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:57,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:57,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:57,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1901609870] [2023-11-29 03:41:57,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:57,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:57,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:57,735 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:57,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 03:41:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:57,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:41:57,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:57,827 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:41:57,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:57,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:57,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737505673] [2023-11-29 03:41:57,827 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:57,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901609870] [2023-11-29 03:41:57,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901609870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:57,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:57,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:41:57,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832727950] [2023-11-29 03:41:57,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:57,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:41:57,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:57,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:41:57,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:41:57,830 INFO L87 Difference]: Start difference. First operand 193 states and 249 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 03:41:57,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:57,901 INFO L93 Difference]: Finished difference Result 201 states and 253 transitions. [2023-11-29 03:41:57,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:41:57,902 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), 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 62 [2023-11-29 03:41:57,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:57,904 INFO L225 Difference]: With dead ends: 201 [2023-11-29 03:41:57,904 INFO L226 Difference]: Without dead ends: 200 [2023-11-29 03:41:57,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 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 03:41:57,906 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 15 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:57,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 128 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:41:57,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-11-29 03:41:57,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 194. [2023-11-29 03:41:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 142 states have (on average 1.3450704225352113) internal successors, (191), 162 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:41:57,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 249 transitions. [2023-11-29 03:41:57,935 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 249 transitions. Word has length 62 [2023-11-29 03:41:57,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:57,936 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 249 transitions. [2023-11-29 03:41:57,936 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), 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 03:41:57,936 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 249 transitions. [2023-11-29 03:41:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 03:41:57,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:57,938 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:41:57,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 03:41:58,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:58,140 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:58,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:58,141 INFO L85 PathProgramCache]: Analyzing trace with hash 945484661, now seen corresponding path program 1 times [2023-11-29 03:41:58,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:58,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398291436] [2023-11-29 03:41:58,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:58,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:58,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:58,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464578043] [2023-11-29 03:41:58,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:58,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:58,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:58,153 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:58,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 03:41:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:58,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:41:58,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:58,269 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:41:58,269 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:58,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:58,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398291436] [2023-11-29 03:41:58,270 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:58,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464578043] [2023-11-29 03:41:58,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464578043] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:58,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:58,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:41:58,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083918031] [2023-11-29 03:41:58,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:58,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:41:58,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:58,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:41:58,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:41:58,272 INFO L87 Difference]: Start difference. First operand 194 states and 249 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 03:41:58,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:58,359 INFO L93 Difference]: Finished difference Result 194 states and 249 transitions. [2023-11-29 03:41:58,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:41:58,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 63 [2023-11-29 03:41:58,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:58,362 INFO L225 Difference]: With dead ends: 194 [2023-11-29 03:41:58,362 INFO L226 Difference]: Without dead ends: 193 [2023-11-29 03:41:58,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:41:58,363 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 92 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:58,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 129 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:41:58,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-29 03:41:58,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2023-11-29 03:41:58,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 142 states have (on average 1.3309859154929577) internal successors, (189), 161 states have internal predecessors, (189), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:41:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2023-11-29 03:41:58,386 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 63 [2023-11-29 03:41:58,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:58,387 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2023-11-29 03:41:58,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 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 03:41:58,387 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2023-11-29 03:41:58,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 03:41:58,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:58,388 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 03:41:58,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 03:41:58,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:58,595 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:58,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:58,595 INFO L85 PathProgramCache]: Analyzing trace with hash -754746457, now seen corresponding path program 1 times [2023-11-29 03:41:58,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:58,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403313933] [2023-11-29 03:41:58,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:58,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:58,605 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:58,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2145169815] [2023-11-29 03:41:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:58,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:58,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:58,607 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:58,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 03:41:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:58,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:41:58,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:41:58,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:58,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:58,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403313933] [2023-11-29 03:41:58,732 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:58,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145169815] [2023-11-29 03:41:58,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145169815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:58,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:58,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:41:58,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424958856] [2023-11-29 03:41:58,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:58,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:41:58,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:58,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:41:58,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:41:58,734 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:41:58,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:58,801 INFO L93 Difference]: Finished difference Result 193 states and 247 transitions. [2023-11-29 03:41:58,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:41:58,802 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2023-11-29 03:41:58,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:58,803 INFO L225 Difference]: With dead ends: 193 [2023-11-29 03:41:58,804 INFO L226 Difference]: Without dead ends: 192 [2023-11-29 03:41:58,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 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 03:41:58,805 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:58,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 96 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:41:58,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-29 03:41:58,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-29 03:41:58,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 142 states have (on average 1.3169014084507042) internal successors, (187), 160 states have internal predecessors, (187), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:41:58,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 245 transitions. [2023-11-29 03:41:58,828 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 245 transitions. Word has length 64 [2023-11-29 03:41:58,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:58,829 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 245 transitions. [2023-11-29 03:41:58,829 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:41:58,829 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 245 transitions. [2023-11-29 03:41:58,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 03:41:58,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:58,830 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-29 03:41:58,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 03:41:59,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:59,031 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:59,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:59,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1922303561, now seen corresponding path program 1 times [2023-11-29 03:41:59,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:59,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164830745] [2023-11-29 03:41:59,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:59,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:59,040 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:59,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1198677105] [2023-11-29 03:41:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:59,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:59,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:59,041 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:59,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 03:41:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:59,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:41:59,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-29 03:41:59,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:41:59,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:41:59,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164830745] [2023-11-29 03:41:59,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:41:59,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198677105] [2023-11-29 03:41:59,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198677105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:41:59,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:41:59,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:41:59,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374964314] [2023-11-29 03:41:59,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:41:59,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:41:59,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:41:59,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:41:59,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:41:59,175 INFO L87 Difference]: Start difference. First operand 192 states and 245 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:41:59,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:41:59,274 INFO L93 Difference]: Finished difference Result 210 states and 256 transitions. [2023-11-29 03:41:59,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:41:59,275 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2023-11-29 03:41:59,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:41:59,277 INFO L225 Difference]: With dead ends: 210 [2023-11-29 03:41:59,277 INFO L226 Difference]: Without dead ends: 209 [2023-11-29 03:41:59,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:41:59,278 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 45 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:41:59,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 155 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:41:59,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-29 03:41:59,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 196. [2023-11-29 03:41:59,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 164 states have internal predecessors, (191), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2023-11-29 03:41:59,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 249 transitions. [2023-11-29 03:41:59,297 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 249 transitions. Word has length 65 [2023-11-29 03:41:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:41:59,298 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 249 transitions. [2023-11-29 03:41:59,298 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 03:41:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 249 transitions. [2023-11-29 03:41:59,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 03:41:59,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:41:59,299 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:41:59,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 03:41:59,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:59,499 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:41:59,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:41:59,500 INFO L85 PathProgramCache]: Analyzing trace with hash 116785460, now seen corresponding path program 1 times [2023-11-29 03:41:59,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:41:59,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291756239] [2023-11-29 03:41:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:59,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:41:59,512 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:41:59,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [322137190] [2023-11-29 03:41:59,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:41:59,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:41:59,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:41:59,514 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:41:59,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 03:41:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:41:59,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:41:59,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:41:59,901 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 03:41:59,901 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:00,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:00,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291756239] [2023-11-29 03:42:00,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:00,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322137190] [2023-11-29 03:42:00,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322137190] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:00,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:00,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:42:00,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040029778] [2023-11-29 03:42:00,103 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:00,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:42:00,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:00,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:42:00,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:42:00,104 INFO L87 Difference]: Start difference. First operand 196 states and 249 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:42:00,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:00,642 INFO L93 Difference]: Finished difference Result 288 states and 351 transitions. [2023-11-29 03:42:00,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 03:42:00,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 74 [2023-11-29 03:42:00,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:00,645 INFO L225 Difference]: With dead ends: 288 [2023-11-29 03:42:00,645 INFO L226 Difference]: Without dead ends: 285 [2023-11-29 03:42:00,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-29 03:42:00,647 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 297 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:00,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 310 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:42:00,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-11-29 03:42:00,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 256. [2023-11-29 03:42:00,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 196 states have (on average 1.3265306122448979) internal successors, (260), 214 states have internal predecessors, (260), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-29 03:42:00,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 338 transitions. [2023-11-29 03:42:00,695 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 338 transitions. Word has length 74 [2023-11-29 03:42:00,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:00,696 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 338 transitions. [2023-11-29 03:42:00,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:42:00,696 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 338 transitions. [2023-11-29 03:42:00,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 03:42:00,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:00,697 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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 03:42:00,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 03:42:00,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 03:42:00,898 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:00,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:00,898 INFO L85 PathProgramCache]: Analyzing trace with hash -674617981, now seen corresponding path program 1 times [2023-11-29 03:42:00,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:00,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967719242] [2023-11-29 03:42:00,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:00,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:00,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:00,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356774560] [2023-11-29 03:42:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:00,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:00,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:00,912 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:00,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 03:42:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:00,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:42:00,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 03:42:01,274 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:01,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:01,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967719242] [2023-11-29 03:42:01,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:01,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356774560] [2023-11-29 03:42:01,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356774560] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:01,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:01,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:42:01,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072771964] [2023-11-29 03:42:01,458 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:01,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:42:01,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:01,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:42:01,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:42:01,459 INFO L87 Difference]: Start difference. First operand 256 states and 338 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:42:01,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:01,826 INFO L93 Difference]: Finished difference Result 351 states and 441 transitions. [2023-11-29 03:42:01,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:42:01,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 75 [2023-11-29 03:42:01,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:01,829 INFO L225 Difference]: With dead ends: 351 [2023-11-29 03:42:01,830 INFO L226 Difference]: Without dead ends: 348 [2023-11-29 03:42:01,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:42:01,831 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 245 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:01,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 300 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:42:01,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-29 03:42:01,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 315. [2023-11-29 03:42:01,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 245 states have (on average 1.3183673469387756) internal successors, (323), 263 states have internal predecessors, (323), 49 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 03:42:01,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 421 transitions. [2023-11-29 03:42:01,863 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 421 transitions. Word has length 75 [2023-11-29 03:42:01,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:01,863 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 421 transitions. [2023-11-29 03:42:01,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:42:01,864 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 421 transitions. [2023-11-29 03:42:01,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 03:42:01,864 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:01,865 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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] [2023-11-29 03:42:01,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 03:42:02,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 03:42:02,065 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:02,066 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash 561679126, now seen corresponding path program 1 times [2023-11-29 03:42:02,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:02,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439219446] [2023-11-29 03:42:02,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:02,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:02,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:02,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [790082655] [2023-11-29 03:42:02,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:02,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:02,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:02,080 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:02,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 03:42:02,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:02,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:42:02,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:02,260 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-29 03:42:02,260 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:42:02,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:02,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439219446] [2023-11-29 03:42:02,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:02,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790082655] [2023-11-29 03:42:02,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790082655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:02,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:02,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:42:02,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356686618] [2023-11-29 03:42:02,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:02,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:42:02,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:02,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:42:02,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:42:02,263 INFO L87 Difference]: Start difference. First operand 315 states and 421 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 03:42:02,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:02,527 INFO L93 Difference]: Finished difference Result 475 states and 621 transitions. [2023-11-29 03:42:02,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:42:02,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 76 [2023-11-29 03:42:02,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:02,531 INFO L225 Difference]: With dead ends: 475 [2023-11-29 03:42:02,531 INFO L226 Difference]: Without dead ends: 472 [2023-11-29 03:42:02,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:42:02,533 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 144 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:02,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 176 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:42:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2023-11-29 03:42:02,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 382. [2023-11-29 03:42:02,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 301 states have (on average 1.3255813953488371) internal successors, (399), 319 states have internal predecessors, (399), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 03:42:02,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 519 transitions. [2023-11-29 03:42:02,586 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 519 transitions. Word has length 76 [2023-11-29 03:42:02,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:02,587 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 519 transitions. [2023-11-29 03:42:02,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 03:42:02,587 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 519 transitions. [2023-11-29 03:42:02,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 03:42:02,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:02,588 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:02,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 03:42:02,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 03:42:02,789 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:02,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:02,790 INFO L85 PathProgramCache]: Analyzing trace with hash 232183781, now seen corresponding path program 1 times [2023-11-29 03:42:02,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:02,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372437413] [2023-11-29 03:42:02,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:02,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:02,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:02,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [773778364] [2023-11-29 03:42:02,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:02,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:02,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:02,798 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:02,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 03:42:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:02,844 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:42:02,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:03,097 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 03:42:03,097 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:07,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:07,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372437413] [2023-11-29 03:42:07,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:07,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773778364] [2023-11-29 03:42:07,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [773778364] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:07,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:07,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:42:07,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392964576] [2023-11-29 03:42:07,238 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:07,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:42:07,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:07,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:42:07,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2023-11-29 03:42:07,239 INFO L87 Difference]: Start difference. First operand 382 states and 519 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:42:07,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:07,875 INFO L93 Difference]: Finished difference Result 409 states and 529 transitions. [2023-11-29 03:42:07,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:42:07,876 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 77 [2023-11-29 03:42:07,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:07,880 INFO L225 Difference]: With dead ends: 409 [2023-11-29 03:42:07,880 INFO L226 Difference]: Without dead ends: 402 [2023-11-29 03:42:07,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=61, Invalid=244, Unknown=1, NotChecked=0, Total=306 [2023-11-29 03:42:07,881 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 224 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:07,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 346 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:42:07,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-11-29 03:42:07,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 380. [2023-11-29 03:42:07,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 299 states have (on average 1.31438127090301) internal successors, (393), 317 states have internal predecessors, (393), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 03:42:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 513 transitions. [2023-11-29 03:42:07,942 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 513 transitions. Word has length 77 [2023-11-29 03:42:07,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:07,943 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 513 transitions. [2023-11-29 03:42:07,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 03:42:07,944 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 513 transitions. [2023-11-29 03:42:07,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 03:42:07,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:07,945 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 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] [2023-11-29 03:42:07,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 03:42:08,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 03:42:08,148 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:08,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:08,149 INFO L85 PathProgramCache]: Analyzing trace with hash 742198340, now seen corresponding path program 1 times [2023-11-29 03:42:08,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:08,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6093187] [2023-11-29 03:42:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:08,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:08,161 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:08,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [78663881] [2023-11-29 03:42:08,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:08,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:08,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:08,173 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:08,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 03:42:08,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:08,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:42:08,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:08,315 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:42:08,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:42:08,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:08,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6093187] [2023-11-29 03:42:08,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:08,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78663881] [2023-11-29 03:42:08,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78663881] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:42:08,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:42:08,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:42:08,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733472180] [2023-11-29 03:42:08,465 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:08,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:42:08,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:08,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:42:08,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:42:08,467 INFO L87 Difference]: Start difference. First operand 380 states and 513 transitions. Second operand has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:42:09,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:09,007 INFO L93 Difference]: Finished difference Result 768 states and 1061 transitions. [2023-11-29 03:42:09,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:42:09,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 97 [2023-11-29 03:42:09,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:09,014 INFO L225 Difference]: With dead ends: 768 [2023-11-29 03:42:09,015 INFO L226 Difference]: Without dead ends: 766 [2023-11-29 03:42:09,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:42:09,016 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 343 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:09,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 265 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:42:09,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-11-29 03:42:09,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 648. [2023-11-29 03:42:09,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 513 states have (on average 1.3372319688109162) internal successors, (686), 530 states have internal predecessors, (686), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 03:42:09,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 916 transitions. [2023-11-29 03:42:09,131 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 916 transitions. Word has length 97 [2023-11-29 03:42:09,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:09,132 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 916 transitions. [2023-11-29 03:42:09,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.0) internal successors, (70), 8 states have internal predecessors, (70), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:42:09,132 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 916 transitions. [2023-11-29 03:42:09,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 03:42:09,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:09,134 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:09,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 03:42:09,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:09,335 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:09,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:09,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1533312153, now seen corresponding path program 1 times [2023-11-29 03:42:09,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:09,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279228833] [2023-11-29 03:42:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:09,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:09,344 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:09,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722657387] [2023-11-29 03:42:09,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:09,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:09,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:09,345 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:09,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 03:42:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:09,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:42:09,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:42:09,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:09,593 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:42:09,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:09,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279228833] [2023-11-29 03:42:09,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:09,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722657387] [2023-11-29 03:42:09,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722657387] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:42:09,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:42:09,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:42:09,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953979332] [2023-11-29 03:42:09,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:09,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:42:09,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:09,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:42:09,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:42:09,596 INFO L87 Difference]: Start difference. First operand 648 states and 916 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:42:10,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:10,202 INFO L93 Difference]: Finished difference Result 772 states and 1041 transitions. [2023-11-29 03:42:10,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:42:10,203 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 98 [2023-11-29 03:42:10,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:10,207 INFO L225 Difference]: With dead ends: 772 [2023-11-29 03:42:10,207 INFO L226 Difference]: Without dead ends: 770 [2023-11-29 03:42:10,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:42:10,208 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 256 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:10,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 268 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:42:10,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2023-11-29 03:42:10,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 652. [2023-11-29 03:42:10,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 518 states have (on average 1.2857142857142858) internal successors, (666), 534 states have internal predecessors, (666), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 03:42:10,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 896 transitions. [2023-11-29 03:42:10,293 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 896 transitions. Word has length 98 [2023-11-29 03:42:10,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:10,293 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 896 transitions. [2023-11-29 03:42:10,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 7 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-11-29 03:42:10,293 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 896 transitions. [2023-11-29 03:42:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 03:42:10,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:10,295 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:10,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 03:42:10,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:10,495 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:10,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash 339199601, now seen corresponding path program 1 times [2023-11-29 03:42:10,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:10,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753490839] [2023-11-29 03:42:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:10,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:10,508 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:10,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038837889] [2023-11-29 03:42:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:10,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:10,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:10,510 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:10,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 03:42:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:10,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 03:42:10,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:10,640 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:42:10,640 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:42:10,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:10,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753490839] [2023-11-29 03:42:10,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:10,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038837889] [2023-11-29 03:42:10,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038837889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:10,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:10,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:42:10,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839270346] [2023-11-29 03:42:10,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:10,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:42:10,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:10,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:42:10,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:42:10,642 INFO L87 Difference]: Start difference. First operand 652 states and 896 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 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 03:42:10,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:10,805 INFO L93 Difference]: Finished difference Result 657 states and 896 transitions. [2023-11-29 03:42:10,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 03:42:10,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 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 100 [2023-11-29 03:42:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:10,810 INFO L225 Difference]: With dead ends: 657 [2023-11-29 03:42:10,811 INFO L226 Difference]: Without dead ends: 656 [2023-11-29 03:42:10,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 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 03:42:10,812 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 21 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:10,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 208 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:42:10,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2023-11-29 03:42:10,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 651. [2023-11-29 03:42:10,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 518 states have (on average 1.281853281853282) internal successors, (664), 533 states have internal predecessors, (664), 115 states have call successors, (115), 2 states have call predecessors, (115), 2 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2023-11-29 03:42:10,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 894 transitions. [2023-11-29 03:42:10,906 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 894 transitions. Word has length 100 [2023-11-29 03:42:10,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:10,907 INFO L495 AbstractCegarLoop]: Abstraction has 651 states and 894 transitions. [2023-11-29 03:42:10,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 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 03:42:10,907 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 894 transitions. [2023-11-29 03:42:10,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 03:42:10,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:10,908 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 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] [2023-11-29 03:42:10,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 03:42:11,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:11,109 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:11,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:11,109 INFO L85 PathProgramCache]: Analyzing trace with hash -962612885, now seen corresponding path program 1 times [2023-11-29 03:42:11,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:11,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173129711] [2023-11-29 03:42:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:11,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:11,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:11,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493606054] [2023-11-29 03:42:11,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:11,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:11,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:11,119 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:11,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 03:42:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:11,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:42:11,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:11,321 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:42:11,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:11,435 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-29 03:42:11,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:11,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173129711] [2023-11-29 03:42:11,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:11,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493606054] [2023-11-29 03:42:11,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493606054] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:42:11,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:42:11,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:42:11,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263738865] [2023-11-29 03:42:11,436 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:11,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:42:11,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:11,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:42:11,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:42:11,438 INFO L87 Difference]: Start difference. First operand 651 states and 894 transitions. Second operand has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-29 03:42:13,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:13,108 INFO L93 Difference]: Finished difference Result 888 states and 1173 transitions. [2023-11-29 03:42:13,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:42:13,110 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 103 [2023-11-29 03:42:13,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:13,116 INFO L225 Difference]: With dead ends: 888 [2023-11-29 03:42:13,116 INFO L226 Difference]: Without dead ends: 886 [2023-11-29 03:42:13,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:42:13,117 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 299 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:13,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 236 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 03:42:13,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2023-11-29 03:42:13,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 716. [2023-11-29 03:42:13,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 574 states have (on average 1.2804878048780488) internal successors, (735), 589 states have internal predecessors, (735), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-11-29 03:42:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 983 transitions. [2023-11-29 03:42:13,219 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 983 transitions. Word has length 103 [2023-11-29 03:42:13,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:13,220 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 983 transitions. [2023-11-29 03:42:13,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 8 states have internal predecessors, (90), 7 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-11-29 03:42:13,220 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 983 transitions. [2023-11-29 03:42:13,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 03:42:13,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:13,222 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 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] [2023-11-29 03:42:13,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 03:42:13,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:13,427 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:13,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash -961381523, now seen corresponding path program 1 times [2023-11-29 03:42:13,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:13,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722733611] [2023-11-29 03:42:13,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:13,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:13,438 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:13,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1128912012] [2023-11-29 03:42:13,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:13,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:13,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:13,441 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:13,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 03:42:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:13,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 03:42:13,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:42:13,548 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 03:42:13,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:13,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722733611] [2023-11-29 03:42:13,709 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:13,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128912012] [2023-11-29 03:42:13,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128912012] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:42:13,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:42:13,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-11-29 03:42:13,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841113406] [2023-11-29 03:42:13,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:13,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:42:13,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:13,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:42:13,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:42:13,712 INFO L87 Difference]: Start difference. First operand 716 states and 983 transitions. Second operand has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 03:42:13,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:13,988 INFO L93 Difference]: Finished difference Result 718 states and 985 transitions. [2023-11-29 03:42:13,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:42:13,988 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 103 [2023-11-29 03:42:13,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:13,994 INFO L225 Difference]: With dead ends: 718 [2023-11-29 03:42:13,994 INFO L226 Difference]: Without dead ends: 717 [2023-11-29 03:42:13,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:42:13,996 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 106 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:13,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 73 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:42:13,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-29 03:42:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 715. [2023-11-29 03:42:14,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 574 states have (on average 1.2473867595818815) internal successors, (716), 588 states have internal predecessors, (716), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-11-29 03:42:14,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 964 transitions. [2023-11-29 03:42:14,137 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 964 transitions. Word has length 103 [2023-11-29 03:42:14,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:14,138 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 964 transitions. [2023-11-29 03:42:14,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-29 03:42:14,138 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 964 transitions. [2023-11-29 03:42:14,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 03:42:14,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:14,140 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:14,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 03:42:14,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 03:42:14,341 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:14,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:14,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1163676672, now seen corresponding path program 1 times [2023-11-29 03:42:14,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:14,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262580088] [2023-11-29 03:42:14,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:14,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:14,354 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:14,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495578855] [2023-11-29 03:42:14,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:14,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:14,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:14,356 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:14,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 03:42:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:14,422 INFO L262 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:42:14,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:15,063 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 03:42:15,063 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:15,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:15,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262580088] [2023-11-29 03:42:15,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:15,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495578855] [2023-11-29 03:42:15,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495578855] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:15,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:15,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:42:15,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124769252] [2023-11-29 03:42:15,198 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:15,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:42:15,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:15,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:42:15,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:42:15,199 INFO L87 Difference]: Start difference. First operand 715 states and 964 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 03:42:16,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:16,662 INFO L93 Difference]: Finished difference Result 1272 states and 1707 transitions. [2023-11-29 03:42:16,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 03:42:16,663 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 112 [2023-11-29 03:42:16,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:16,670 INFO L225 Difference]: With dead ends: 1272 [2023-11-29 03:42:16,670 INFO L226 Difference]: Without dead ends: 1269 [2023-11-29 03:42:16,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:42:16,672 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 353 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:16,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 380 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 03:42:16,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2023-11-29 03:42:16,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 768. [2023-11-29 03:42:16,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 618 states have (on average 1.249190938511327) internal successors, (772), 632 states have internal predecessors, (772), 133 states have call successors, (133), 2 states have call predecessors, (133), 2 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-29 03:42:16,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1038 transitions. [2023-11-29 03:42:16,786 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1038 transitions. Word has length 112 [2023-11-29 03:42:16,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:16,787 INFO L495 AbstractCegarLoop]: Abstraction has 768 states and 1038 transitions. [2023-11-29 03:42:16,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 03:42:16,787 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1038 transitions. [2023-11-29 03:42:16,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-29 03:42:16,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:16,789 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 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 03:42:16,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 03:42:16,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 03:42:16,989 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:16,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:16,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1714238409, now seen corresponding path program 1 times [2023-11-29 03:42:16,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:16,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415112481] [2023-11-29 03:42:16,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:16,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:17,000 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:17,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [35759729] [2023-11-29 03:42:17,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:17,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:17,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:17,002 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:17,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 03:42:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:17,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:42:17,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:17,724 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 03:42:17,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:17,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:17,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415112481] [2023-11-29 03:42:17,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:17,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35759729] [2023-11-29 03:42:17,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35759729] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:17,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:17,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 03:42:17,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546828692] [2023-11-29 03:42:17,892 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:17,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:42:17,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:17,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:42:17,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:42:17,893 INFO L87 Difference]: Start difference. First operand 768 states and 1038 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 03:42:18,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:18,518 INFO L93 Difference]: Finished difference Result 865 states and 1149 transitions. [2023-11-29 03:42:18,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:42:18,519 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 113 [2023-11-29 03:42:18,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:18,523 INFO L225 Difference]: With dead ends: 865 [2023-11-29 03:42:18,523 INFO L226 Difference]: Without dead ends: 862 [2023-11-29 03:42:18,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:42:18,524 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 155 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:18,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 270 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:42:18,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2023-11-29 03:42:18,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 835. [2023-11-29 03:42:18,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 673 states have (on average 1.2436849925705795) internal successors, (837), 687 states have internal predecessors, (837), 145 states have call successors, (145), 2 states have call predecessors, (145), 2 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2023-11-29 03:42:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1127 transitions. [2023-11-29 03:42:18,628 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1127 transitions. Word has length 113 [2023-11-29 03:42:18,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:18,628 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1127 transitions. [2023-11-29 03:42:18,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 7 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-11-29 03:42:18,629 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1127 transitions. [2023-11-29 03:42:18,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-29 03:42:18,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:18,630 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 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 03:42:18,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 03:42:18,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 03:42:18,831 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:18,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:18,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1601783070, now seen corresponding path program 1 times [2023-11-29 03:42:18,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:18,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693966053] [2023-11-29 03:42:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:18,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:18,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:18,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847643283] [2023-11-29 03:42:18,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:18,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:18,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:18,845 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:18,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 03:42:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:18,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 03:42:18,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:19,026 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 03:42:19,027 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:42:19,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:19,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693966053] [2023-11-29 03:42:19,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:19,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847643283] [2023-11-29 03:42:19,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847643283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:19,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:19,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:42:19,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952634349] [2023-11-29 03:42:19,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:19,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:42:19,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:19,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:42:19,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:42:19,029 INFO L87 Difference]: Start difference. First operand 835 states and 1127 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 03:42:19,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:19,409 INFO L93 Difference]: Finished difference Result 980 states and 1303 transitions. [2023-11-29 03:42:19,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:42:19,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 114 [2023-11-29 03:42:19,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:19,414 INFO L225 Difference]: With dead ends: 980 [2023-11-29 03:42:19,414 INFO L226 Difference]: Without dead ends: 977 [2023-11-29 03:42:19,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:42:19,415 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 95 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:19,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 332 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:42:19,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2023-11-29 03:42:19,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 698. [2023-11-29 03:42:19,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 561 states have (on average 1.2156862745098038) internal successors, (682), 572 states have internal predecessors, (682), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2023-11-29 03:42:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 928 transitions. [2023-11-29 03:42:19,506 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 928 transitions. Word has length 114 [2023-11-29 03:42:19,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:19,506 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 928 transitions. [2023-11-29 03:42:19,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-29 03:42:19,506 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 928 transitions. [2023-11-29 03:42:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 03:42:19,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:19,507 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 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 03:42:19,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 03:42:19,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 03:42:19,708 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:19,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:19,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1884332441, now seen corresponding path program 1 times [2023-11-29 03:42:19,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:19,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43714757] [2023-11-29 03:42:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:19,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:19,718 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:19,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594355755] [2023-11-29 03:42:19,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:19,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:19,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:19,720 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:19,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 03:42:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:19,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 03:42:19,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:20,328 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 03:42:20,329 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:21,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:21,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43714757] [2023-11-29 03:42:21,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:21,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594355755] [2023-11-29 03:42:21,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594355755] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:21,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:21,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 03:42:21,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274012420] [2023-11-29 03:42:21,278 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:21,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 03:42:21,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:21,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 03:42:21,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:42:21,280 INFO L87 Difference]: Start difference. First operand 698 states and 928 transitions. Second operand has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 03:42:22,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:22,003 INFO L93 Difference]: Finished difference Result 717 states and 936 transitions. [2023-11-29 03:42:22,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:42:22,004 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 115 [2023-11-29 03:42:22,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:22,007 INFO L225 Difference]: With dead ends: 717 [2023-11-29 03:42:22,007 INFO L226 Difference]: Without dead ends: 710 [2023-11-29 03:42:22,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=664, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:42:22,008 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 172 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:22,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 473 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:42:22,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-11-29 03:42:22,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 621. [2023-11-29 03:42:22,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 499 states have (on average 1.2064128256513027) internal successors, (602), 510 states have internal predecessors, (602), 108 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2023-11-29 03:42:22,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 818 transitions. [2023-11-29 03:42:22,144 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 818 transitions. Word has length 115 [2023-11-29 03:42:22,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:22,144 INFO L495 AbstractCegarLoop]: Abstraction has 621 states and 818 transitions. [2023-11-29 03:42:22,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 13 states have internal predecessors, (59), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2023-11-29 03:42:22,145 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 818 transitions. [2023-11-29 03:42:22,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-29 03:42:22,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:22,146 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 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 03:42:22,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 03:42:22,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 03:42:22,346 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:22,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:22,347 INFO L85 PathProgramCache]: Analyzing trace with hash -685818489, now seen corresponding path program 1 times [2023-11-29 03:42:22,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:22,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201416611] [2023-11-29 03:42:22,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:22,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:22,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:22,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137064132] [2023-11-29 03:42:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:22,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:22,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:22,356 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:22,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 03:42:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:42:22,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 03:42:22,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-11-29 03:42:22,733 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:22,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:22,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201416611] [2023-11-29 03:42:22,988 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:22,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137064132] [2023-11-29 03:42:22,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137064132] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:22,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:22,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 03:42:22,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428409589] [2023-11-29 03:42:22,989 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:22,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:42:22,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:22,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:42:22,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:42:22,990 INFO L87 Difference]: Start difference. First operand 621 states and 818 transitions. Second operand has 9 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 03:42:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:23,774 INFO L93 Difference]: Finished difference Result 755 states and 968 transitions. [2023-11-29 03:42:23,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:42:23,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 115 [2023-11-29 03:42:23,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:23,778 INFO L225 Difference]: With dead ends: 755 [2023-11-29 03:42:23,778 INFO L226 Difference]: Without dead ends: 753 [2023-11-29 03:42:23,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:42:23,779 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 164 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:23,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 169 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:42:23,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-11-29 03:42:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 539. [2023-11-29 03:42:23,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 429 states have (on average 1.1771561771561772) internal successors, (505), 440 states have internal predecessors, (505), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-11-29 03:42:23,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 697 transitions. [2023-11-29 03:42:23,875 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 697 transitions. Word has length 115 [2023-11-29 03:42:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:23,876 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 697 transitions. [2023-11-29 03:42:23,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.428571428571429) internal successors, (59), 8 states have internal predecessors, (59), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 03:42:23,876 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 697 transitions. [2023-11-29 03:42:23,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 03:42:23,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:23,877 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:23,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 03:42:24,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 03:42:24,078 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:24,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:24,078 INFO L85 PathProgramCache]: Analyzing trace with hash -770695640, now seen corresponding path program 2 times [2023-11-29 03:42:24,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:24,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980965839] [2023-11-29 03:42:24,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:24,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:24,087 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:24,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227477456] [2023-11-29 03:42:24,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:42:24,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:24,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:24,089 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:24,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 03:42:24,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:42:24,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:42:24,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:42:24,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:24,221 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-29 03:42:24,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:42:24,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:24,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980965839] [2023-11-29 03:42:24,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:24,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227477456] [2023-11-29 03:42:24,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227477456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:42:24,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:42:24,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:42:24,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219253220] [2023-11-29 03:42:24,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:42:24,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:42:24,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:24,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:42:24,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:42:24,225 INFO L87 Difference]: Start difference. First operand 539 states and 697 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 03:42:24,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:24,433 INFO L93 Difference]: Finished difference Result 953 states and 1224 transitions. [2023-11-29 03:42:24,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:42:24,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2023-11-29 03:42:24,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:24,436 INFO L225 Difference]: With dead ends: 953 [2023-11-29 03:42:24,436 INFO L226 Difference]: Without dead ends: 587 [2023-11-29 03:42:24,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:42:24,439 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 39 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:24,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 126 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:42:24,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-11-29 03:42:24,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 570. [2023-11-29 03:42:24,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 457 states have (on average 1.175054704595186) internal successors, (537), 468 states have internal predecessors, (537), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 03:42:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 735 transitions. [2023-11-29 03:42:24,554 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 735 transitions. Word has length 122 [2023-11-29 03:42:24,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:24,554 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 735 transitions. [2023-11-29 03:42:24,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 03:42:24,555 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 735 transitions. [2023-11-29 03:42:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 03:42:24,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:24,557 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 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 03:42:24,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 03:42:24,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 03:42:24,763 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:24,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:24,763 INFO L85 PathProgramCache]: Analyzing trace with hash 490794444, now seen corresponding path program 2 times [2023-11-29 03:42:24,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:24,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029171094] [2023-11-29 03:42:24,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:24,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:24,773 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:24,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [17670244] [2023-11-29 03:42:24,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:42:24,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:24,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:24,775 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:24,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 03:42:24,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:42:24,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:42:24,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 03:42:24,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-29 03:42:25,673 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:25,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:25,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029171094] [2023-11-29 03:42:25,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:25,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17670244] [2023-11-29 03:42:25,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17670244] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:25,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:25,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-29 03:42:25,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640648425] [2023-11-29 03:42:25,851 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:25,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 03:42:25,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:25,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 03:42:25,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:42:25,853 INFO L87 Difference]: Start difference. First operand 570 states and 735 transitions. Second operand has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 8 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) [2023-11-29 03:42:26,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:26,944 INFO L93 Difference]: Finished difference Result 663 states and 839 transitions. [2023-11-29 03:42:26,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:42:26,944 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 8 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) Word has length 150 [2023-11-29 03:42:26,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:26,947 INFO L225 Difference]: With dead ends: 663 [2023-11-29 03:42:26,948 INFO L226 Difference]: Without dead ends: 662 [2023-11-29 03:42:26,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=151, Invalid=719, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:42:26,949 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 230 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:26,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 566 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 03:42:26,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2023-11-29 03:42:27,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 570. [2023-11-29 03:42:27,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 457 states have (on average 1.1728665207877462) internal successors, (536), 468 states have internal predecessors, (536), 99 states have call successors, (99), 2 states have call predecessors, (99), 2 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 03:42:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 734 transitions. [2023-11-29 03:42:27,027 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 734 transitions. Word has length 150 [2023-11-29 03:42:27,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:27,028 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 734 transitions. [2023-11-29 03:42:27,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 8 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 8 states have call successors, (17) [2023-11-29 03:42:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 734 transitions. [2023-11-29 03:42:27,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 03:42:27,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:27,029 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:27,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 03:42:27,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:27,230 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:27,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:27,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1965241365, now seen corresponding path program 2 times [2023-11-29 03:42:27,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:27,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193795749] [2023-11-29 03:42:27,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:27,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:27,238 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:27,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [82077226] [2023-11-29 03:42:27,238 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:42:27,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:27,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:27,239 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:27,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 03:42:27,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:42:27,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:42:27,304 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-29 03:42:27,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:28,289 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 42 proven. 57 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-29 03:42:28,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:28,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:28,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193795749] [2023-11-29 03:42:28,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:28,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82077226] [2023-11-29 03:42:28,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82077226] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:28,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:28,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 03:42:28,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744444914] [2023-11-29 03:42:28,874 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:28,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 03:42:28,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:28,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 03:42:28,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:42:28,876 INFO L87 Difference]: Start difference. First operand 570 states and 734 transitions. Second operand has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 03:42:30,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:30,857 INFO L93 Difference]: Finished difference Result 668 states and 845 transitions. [2023-11-29 03:42:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 03:42:30,858 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 151 [2023-11-29 03:42:30,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:30,863 INFO L225 Difference]: With dead ends: 668 [2023-11-29 03:42:30,863 INFO L226 Difference]: Without dead ends: 665 [2023-11-29 03:42:30,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:42:30,864 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 215 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:30,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 216 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 03:42:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2023-11-29 03:42:31,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 637. [2023-11-29 03:42:31,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 512 states have (on average 1.16796875) internal successors, (598), 523 states have internal predecessors, (598), 111 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-29 03:42:31,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 820 transitions. [2023-11-29 03:42:31,011 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 820 transitions. Word has length 151 [2023-11-29 03:42:31,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:31,012 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 820 transitions. [2023-11-29 03:42:31,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.2) internal successors, (78), 15 states have internal predecessors, (78), 7 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 03:42:31,012 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 820 transitions. [2023-11-29 03:42:31,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 03:42:31,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:31,013 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:31,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 03:42:31,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 03:42:31,214 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:31,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:31,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1188660301, now seen corresponding path program 2 times [2023-11-29 03:42:31,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:31,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742148927] [2023-11-29 03:42:31,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:31,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:31,225 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:31,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1427391367] [2023-11-29 03:42:31,225 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:42:31,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:31,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:31,227 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:31,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 03:42:31,285 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:42:31,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:42:31,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 03:42:31,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-29 03:42:31,978 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:32,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:32,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742148927] [2023-11-29 03:42:32,358 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:32,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427391367] [2023-11-29 03:42:32,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427391367] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:32,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:32,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 03:42:32,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078265059] [2023-11-29 03:42:32,358 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:32,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:42:32,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:32,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:42:32,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:42:32,360 INFO L87 Difference]: Start difference. First operand 637 states and 820 transitions. Second operand has 15 states, 14 states have (on average 5.5) internal successors, (77), 15 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 03:42:33,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:33,461 INFO L93 Difference]: Finished difference Result 654 states and 826 transitions. [2023-11-29 03:42:33,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:42:33,462 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.5) internal successors, (77), 15 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) Word has length 153 [2023-11-29 03:42:33,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:33,466 INFO L225 Difference]: With dead ends: 654 [2023-11-29 03:42:33,466 INFO L226 Difference]: Without dead ends: 647 [2023-11-29 03:42:33,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2023-11-29 03:42:33,467 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 225 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:33,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 477 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 03:42:33,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-11-29 03:42:33,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 635. [2023-11-29 03:42:33,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 510 states have (on average 1.1549019607843136) internal successors, (589), 521 states have internal predecessors, (589), 111 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2023-11-29 03:42:33,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 811 transitions. [2023-11-29 03:42:33,573 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 811 transitions. Word has length 153 [2023-11-29 03:42:33,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:33,573 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 811 transitions. [2023-11-29 03:42:33,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.5) internal successors, (77), 15 states have internal predecessors, (77), 7 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (17), 6 states have call predecessors, (17), 7 states have call successors, (17) [2023-11-29 03:42:33,574 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 811 transitions. [2023-11-29 03:42:33,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 03:42:33,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:33,574 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 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 03:42:33,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-11-29 03:42:33,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 03:42:33,775 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:33,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:33,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1381490629, now seen corresponding path program 2 times [2023-11-29 03:42:33,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:33,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817116575] [2023-11-29 03:42:33,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:33,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:33,784 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:33,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614219357] [2023-11-29 03:42:33,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:42:33,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:33,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:33,786 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:33,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 03:42:33,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:42:33,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:42:33,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:42:33,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:34,103 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 130 proven. 3 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2023-11-29 03:42:34,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:34,331 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 30 proven. 51 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2023-11-29 03:42:34,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:34,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817116575] [2023-11-29 03:42:34,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:34,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614219357] [2023-11-29 03:42:34,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614219357] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:42:34,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:42:34,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2023-11-29 03:42:34,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200907766] [2023-11-29 03:42:34,332 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:34,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:42:34,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:34,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:42:34,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:42:34,334 INFO L87 Difference]: Start difference. First operand 635 states and 811 transitions. Second operand has 17 states, 17 states have (on average 8.117647058823529) internal successors, (138), 15 states have internal predecessors, (138), 12 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 13 states have call predecessors, (34), 12 states have call successors, (34) [2023-11-29 03:42:34,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:42:34,879 INFO L93 Difference]: Finished difference Result 872 states and 1100 transitions. [2023-11-29 03:42:34,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:42:34,880 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.117647058823529) internal successors, (138), 15 states have internal predecessors, (138), 12 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 13 states have call predecessors, (34), 12 states have call successors, (34) Word has length 153 [2023-11-29 03:42:34,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:42:34,882 INFO L225 Difference]: With dead ends: 872 [2023-11-29 03:42:34,882 INFO L226 Difference]: Without dead ends: 468 [2023-11-29 03:42:34,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2023-11-29 03:42:34,884 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 340 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:42:34,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 390 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 03:42:34,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-11-29 03:42:34,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 406. [2023-11-29 03:42:34,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 329 states have (on average 1.1094224924012157) internal successors, (365), 336 states have internal predecessors, (365), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-29 03:42:34,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 499 transitions. [2023-11-29 03:42:34,955 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 499 transitions. Word has length 153 [2023-11-29 03:42:34,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:42:34,955 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 499 transitions. [2023-11-29 03:42:34,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.117647058823529) internal successors, (138), 15 states have internal predecessors, (138), 12 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (34), 13 states have call predecessors, (34), 12 states have call successors, (34) [2023-11-29 03:42:34,956 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 499 transitions. [2023-11-29 03:42:34,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-11-29 03:42:34,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:42:34,957 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:42:34,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 03:42:35,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 03:42:35,158 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:42:35,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:42:35,158 INFO L85 PathProgramCache]: Analyzing trace with hash -428308236, now seen corresponding path program 3 times [2023-11-29 03:42:35,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:42:35,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296683100] [2023-11-29 03:42:35,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:42:35,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:42:35,166 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:42:35,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [168744055] [2023-11-29 03:42:35,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:42:35,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:42:35,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:42:35,168 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:42:35,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 03:42:35,248 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 03:42:35,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:42:35,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 43 conjunts are in the unsatisfiable core [2023-11-29 03:42:35,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:42:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 100 proven. 57 refuted. 4 times theorem prover too weak. 336 trivial. 0 not checked. [2023-11-29 03:42:44,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:42:47,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:42:47,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296683100] [2023-11-29 03:42:47,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:42:47,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168744055] [2023-11-29 03:42:47,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168744055] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:42:47,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:42:47,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2023-11-29 03:42:47,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363165480] [2023-11-29 03:42:47,384 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:42:47,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 03:42:47,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:42:47,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 03:42:47,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=496, Unknown=2, NotChecked=0, Total=600 [2023-11-29 03:42:47,386 INFO L87 Difference]: Start difference. First operand 406 states and 499 transitions. Second operand has 19 states, 17 states have (on average 4.176470588235294) internal successors, (71), 17 states have internal predecessors, (71), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 03:42:52,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:43:01,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:43:09,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:43:13,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:43:17,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:43:31,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 03:43:35,742 WARN L539 Checker$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 03:44:01,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:05,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:09,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:11,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:12,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:16,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:20,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:25,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:29,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:33,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:37,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:43,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:47,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:51,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:55,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:44:59,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:03,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:07,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:11,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:11,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:45:11,438 INFO L93 Difference]: Finished difference Result 602 states and 752 transitions. [2023-11-29 03:45:11,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 03:45:11,455 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.176470588235294) internal successors, (71), 17 states have internal predecessors, (71), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) Word has length 160 [2023-11-29 03:45:11,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:45:11,458 INFO L225 Difference]: With dead ends: 602 [2023-11-29 03:45:11,458 INFO L226 Difference]: Without dead ends: 599 [2023-11-29 03:45:11,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 51.0s TimeCoverageRelationStatistics Valid=315, Invalid=1401, Unknown=6, NotChecked=0, Total=1722 [2023-11-29 03:45:11,460 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 348 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 66 mSolverCounterUnsat, 37 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 37 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:45:11,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 369 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1189 Invalid, 37 Unknown, 0 Unchecked, 103.4s Time] [2023-11-29 03:45:11,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-11-29 03:45:11,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 561. [2023-11-29 03:45:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 455 states have (on average 1.1164835164835165) internal successors, (508), 462 states have internal predecessors, (508), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-11-29 03:45:11,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 700 transitions. [2023-11-29 03:45:11,591 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 700 transitions. Word has length 160 [2023-11-29 03:45:11,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:45:11,592 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 700 transitions. [2023-11-29 03:45:11,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.176470588235294) internal successors, (71), 17 states have internal predecessors, (71), 7 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-29 03:45:11,592 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 700 transitions. [2023-11-29 03:45:11,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 03:45:11,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:45:11,594 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 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] [2023-11-29 03:45:11,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 03:45:11,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:45:11,795 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:45:11,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:45:11,795 INFO L85 PathProgramCache]: Analyzing trace with hash 712647446, now seen corresponding path program 3 times [2023-11-29 03:45:11,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:45:11,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051854082] [2023-11-29 03:45:11,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:45:11,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:45:11,808 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:45:11,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294002787] [2023-11-29 03:45:11,808 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:45:11,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:45:11,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:45:11,809 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:45:11,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 03:45:11,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 03:45:11,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:45:11,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 03:45:11,878 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:45:12,184 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 56 proven. 6 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2023-11-29 03:45:12,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:45:12,458 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 52 proven. 10 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2023-11-29 03:45:12,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:45:12,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051854082] [2023-11-29 03:45:12,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:45:12,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294002787] [2023-11-29 03:45:12,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294002787] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:45:12,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:45:12,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-11-29 03:45:12,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992179601] [2023-11-29 03:45:12,460 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:45:12,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:45:12,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:45:12,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:45:12,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:45:12,461 INFO L87 Difference]: Start difference. First operand 561 states and 700 transitions. Second operand has 17 states, 16 states have (on average 6.9375) internal successors, (111), 17 states have internal predecessors, (111), 7 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2023-11-29 03:45:13,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:45:13,096 INFO L93 Difference]: Finished difference Result 562 states and 700 transitions. [2023-11-29 03:45:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 03:45:13,097 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.9375) internal successors, (111), 17 states have internal predecessors, (111), 7 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) Word has length 162 [2023-11-29 03:45:13,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:45:13,100 INFO L225 Difference]: With dead ends: 562 [2023-11-29 03:45:13,100 INFO L226 Difference]: Without dead ends: 533 [2023-11-29 03:45:13,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 305 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2023-11-29 03:45:13,101 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 146 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 03:45:13,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 488 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 03:45:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-11-29 03:45:13,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 424. [2023-11-29 03:45:13,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 346 states have (on average 1.0549132947976878) internal successors, (365), 348 states have internal predecessors, (365), 73 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-11-29 03:45:13,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 511 transitions. [2023-11-29 03:45:13,191 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 511 transitions. Word has length 162 [2023-11-29 03:45:13,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:45:13,192 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 511 transitions. [2023-11-29 03:45:13,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.9375) internal successors, (111), 17 states have internal predecessors, (111), 7 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2023-11-29 03:45:13,192 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 511 transitions. [2023-11-29 03:45:13,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-11-29 03:45:13,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:45:13,193 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:45:13,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 03:45:13,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-11-29 03:45:13,394 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:45:13,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:45:13,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1385459625, now seen corresponding path program 3 times [2023-11-29 03:45:13,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:45:13,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983270063] [2023-11-29 03:45:13,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:45:13,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:45:13,407 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:45:13,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024995031] [2023-11-29 03:45:13,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:45:13,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:45:13,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:45:13,409 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:45:13,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 03:45:13,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 03:45:13,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:45:13,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 03:45:13,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:45:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 109 proven. 62 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2023-11-29 03:45:25,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:45:35,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:45:35,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983270063] [2023-11-29 03:45:35,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:45:35,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024995031] [2023-11-29 03:45:35,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024995031] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:45:35,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:45:35,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2023-11-29 03:45:35,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933818143] [2023-11-29 03:45:35,103 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 03:45:35,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 03:45:35,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:45:35,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 03:45:35,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=336, Unknown=4, NotChecked=0, Total=420 [2023-11-29 03:45:35,104 INFO L87 Difference]: Start difference. First operand 424 states and 511 transitions. Second operand has 15 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 03:45:42,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:44,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:46,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:49,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:51,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:53,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:55,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:45:58,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:00,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:02,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:05,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:07,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:09,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:13,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:16,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:18,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:23,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:26,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:28,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:31,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:35,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:39,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:42,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 03:46:47,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:46:47,426 INFO L93 Difference]: Finished difference Result 427 states and 513 transitions. [2023-11-29 03:46:47,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:46:47,427 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) Word has length 197 [2023-11-29 03:46:47,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:46:47,429 INFO L225 Difference]: With dead ends: 427 [2023-11-29 03:46:47,429 INFO L226 Difference]: Without dead ends: 417 [2023-11-29 03:46:47,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 33.6s TimeCoverageRelationStatistics Valid=198, Invalid=723, Unknown=9, NotChecked=0, Total=930 [2023-11-29 03:46:47,430 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 115 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 34 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.3s IncrementalHoareTripleChecker+Time [2023-11-29 03:46:47,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 105 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 421 Invalid, 23 Unknown, 0 Unchecked, 59.3s Time] [2023-11-29 03:46:47,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-11-29 03:46:47,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 249. [2023-11-29 03:46:47,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 201 states have (on average 1.0398009950248757) internal successors, (209), 202 states have internal predecessors, (209), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-29 03:46:47,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 297 transitions. [2023-11-29 03:46:47,495 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 297 transitions. Word has length 197 [2023-11-29 03:46:47,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:46:47,496 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 297 transitions. [2023-11-29 03:46:47,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.538461538461538) internal successors, (72), 12 states have internal predecessors, (72), 5 states have call successors, (15), 1 states have call predecessors, (15), 3 states have return successors, (15), 7 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-29 03:46:47,496 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 297 transitions. [2023-11-29 03:46:47,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-29 03:46:47,497 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:46:47,497 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:46:47,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2023-11-29 03:46:47,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 03:46:47,698 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:46:47,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:46:47,698 INFO L85 PathProgramCache]: Analyzing trace with hash 91309392, now seen corresponding path program 1 times [2023-11-29 03:46:47,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:46:47,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069212540] [2023-11-29 03:46:47,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:46:47,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:46:47,710 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:46:47,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998317673] [2023-11-29 03:46:47,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:46:47,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:46:47,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:46:47,712 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:46:47,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 03:46:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:46:47,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 03:46:47,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:46:47,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 558 proven. 39 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2023-11-29 03:46:47,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:46:48,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 110 proven. 39 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2023-11-29 03:46:48,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:46:48,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069212540] [2023-11-29 03:46:48,092 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:46:48,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998317673] [2023-11-29 03:46:48,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998317673] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:46:48,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:46:48,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2023-11-29 03:46:48,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544787676] [2023-11-29 03:46:48,093 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:46:48,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:46:48,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:46:48,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:46:48,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:46:48,095 INFO L87 Difference]: Start difference. First operand 249 states and 297 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 03:46:48,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:46:48,429 INFO L93 Difference]: Finished difference Result 470 states and 555 transitions. [2023-11-29 03:46:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:46:48,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 226 [2023-11-29 03:46:48,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:46:48,431 INFO L225 Difference]: With dead ends: 470 [2023-11-29 03:46:48,431 INFO L226 Difference]: Without dead ends: 298 [2023-11-29 03:46:48,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 442 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:46:48,432 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 80 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:46:48,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 288 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:46:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-11-29 03:46:48,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 282. [2023-11-29 03:46:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 228 states have (on average 1.0394736842105263) internal successors, (237), 229 states have internal predecessors, (237), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 03:46:48,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 337 transitions. [2023-11-29 03:46:48,516 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 337 transitions. Word has length 226 [2023-11-29 03:46:48,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:46:48,516 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 337 transitions. [2023-11-29 03:46:48,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 8 states have internal predecessors, (96), 6 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2023-11-29 03:46:48,516 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 337 transitions. [2023-11-29 03:46:48,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-29 03:46:48,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:46:48,519 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:46:48,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2023-11-29 03:46:48,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 03:46:48,719 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:46:48,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:46:48,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1265472540, now seen corresponding path program 2 times [2023-11-29 03:46:48,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:46:48,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215691115] [2023-11-29 03:46:48,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:46:48,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:46:48,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:46:48,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [375079398] [2023-11-29 03:46:48,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:46:48,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:46:48,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:46:48,734 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:46:48,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 03:46:48,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:46:48,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:46:48,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:46:48,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:46:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 458 proven. 157 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2023-11-29 03:46:49,061 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:46:49,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 106 proven. 157 refuted. 0 times theorem prover too weak. 1312 trivial. 0 not checked. [2023-11-29 03:46:49,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:46:49,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215691115] [2023-11-29 03:46:49,344 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:46:49,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375079398] [2023-11-29 03:46:49,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375079398] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:46:49,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:46:49,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2023-11-29 03:46:49,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241128568] [2023-11-29 03:46:49,345 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:46:49,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:46:49,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:46:49,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:46:49,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:46:49,346 INFO L87 Difference]: Start difference. First operand 282 states and 337 transitions. Second operand has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 11 states have internal predecessors, (142), 9 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 9 states have call predecessors, (36), 9 states have call successors, (36) [2023-11-29 03:46:49,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:46:49,978 INFO L93 Difference]: Finished difference Result 315 states and 373 transitions. [2023-11-29 03:46:49,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:46:49,979 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 11 states have internal predecessors, (142), 9 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 9 states have call predecessors, (36), 9 states have call successors, (36) Word has length 264 [2023-11-29 03:46:49,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:46:49,980 INFO L225 Difference]: With dead ends: 315 [2023-11-29 03:46:49,980 INFO L226 Difference]: Without dead ends: 169 [2023-11-29 03:46:49,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 515 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:46:49,981 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 118 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:46:49,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 521 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 03:46:49,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-11-29 03:46:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2023-11-29 03:46:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 134 states have (on average 1.007462686567164) internal successors, (135), 135 states have internal predecessors, (135), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 03:46:50,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 197 transitions. [2023-11-29 03:46:50,024 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 197 transitions. Word has length 264 [2023-11-29 03:46:50,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:46:50,024 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 197 transitions. [2023-11-29 03:46:50,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 11 states have internal predecessors, (142), 9 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 9 states have call predecessors, (36), 9 states have call successors, (36) [2023-11-29 03:46:50,025 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 197 transitions. [2023-11-29 03:46:50,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-11-29 03:46:50,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:46:50,026 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:46:50,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2023-11-29 03:46:50,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 03:46:50,227 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2023-11-29 03:46:50,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:46:50,227 INFO L85 PathProgramCache]: Analyzing trace with hash -408674037, now seen corresponding path program 3 times [2023-11-29 03:46:50,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:46:50,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408652113] [2023-11-29 03:46:50,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:46:50,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:46:50,239 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 03:46:50,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636107285] [2023-11-29 03:46:50,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:46:50,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:46:50,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:46:50,241 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:46:50,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 03:46:50,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 03:46:50,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:46:50,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:46:50,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:46:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1680 backedges. 203 proven. 6 refuted. 0 times theorem prover too weak. 1471 trivial. 0 not checked. [2023-11-29 03:46:50,581 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:46:50,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1680 backedges. 138 proven. 71 refuted. 0 times theorem prover too weak. 1471 trivial. 0 not checked. [2023-11-29 03:46:50,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:46:50,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408652113] [2023-11-29 03:46:50,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 03:46:50,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636107285] [2023-11-29 03:46:50,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636107285] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:46:50,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:46:50,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2023-11-29 03:46:50,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265168468] [2023-11-29 03:46:50,914 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:46:50,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:46:50,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:46:50,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:46:50,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:46:50,916 INFO L87 Difference]: Start difference. First operand 169 states and 197 transitions. Second operand has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 17 states have internal predecessors, (143), 9 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 8 states have call predecessors, (32), 9 states have call successors, (32) [2023-11-29 03:46:51,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:46:51,341 INFO L93 Difference]: Finished difference Result 173 states and 200 transitions. [2023-11-29 03:46:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 03:46:51,342 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 17 states have internal predecessors, (143), 9 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 8 states have call predecessors, (32), 9 states have call successors, (32) Word has length 273 [2023-11-29 03:46:51,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:46:51,342 INFO L225 Difference]: With dead ends: 173 [2023-11-29 03:46:51,342 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 03:46:51,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 527 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2023-11-29 03:46:51,344 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 74 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:46:51,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 697 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:46:51,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 03:46:51,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 03:46:51,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:46:51,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 03:46:51,345 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 273 [2023-11-29 03:46:51,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:46:51,346 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:46:51,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 17 states have internal predecessors, (143), 9 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (32), 8 states have call predecessors, (32), 9 states have call successors, (32) [2023-11-29 03:46:51,346 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 03:46:51,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 03:46:51,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2023-11-29 03:46:51,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2023-11-29 03:46:51,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2023-11-29 03:46:51,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2023-11-29 03:46:51,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2023-11-29 03:46:51,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2023-11-29 03:46:51,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2023-11-29 03:46:51,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2023-11-29 03:46:51,349 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2023-11-29 03:46:51,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2023-11-29 03:46:51,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2023-11-29 03:46:51,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2023-11-29 03:46:51,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2023-11-29 03:46:51,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2023-11-29 03:46:51,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2023-11-29 03:46:51,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2023-11-29 03:46:51,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2023-11-29 03:46:51,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2023-11-29 03:46:51,350 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2023-11-29 03:46:51,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2023-11-29 03:46:51,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2023-11-29 03:46:51,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 03:46:51,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 03:47:41,489 WARN L293 SmtUtils]: Spent 47.73s on a formula simplification. DAG size of input: 250 DAG size of output: 492 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-11-29 03:47:55,115 WARN L293 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 492 DAG size of output: 71 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 03:48:01,962 WARN L293 SmtUtils]: Spent 6.85s on a formula simplification. DAG size of input: 243 DAG size of output: 61 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-11-29 03:48:04,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-29 03:48:04,170 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (<= |ULTIMATE.start_main_~x~0#1| 2147483647) [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 52 53) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point L61-1(line 61) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-29 03:48:04,171 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-11-29 03:48:04,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-29 03:48:04,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) no Hoare annotation was computed. [2023-11-29 03:48:04,172 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ |ULTIMATE.start_main_~y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647)) [2023-11-29 03:48:04,172 INFO L895 garLoopResultBuilder]: At program point L29-1(line 29) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (<= 0 |ULTIMATE.start_main_~y~0#1|)) [2023-11-29 03:48:04,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-29 03:48:04,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 61) no Hoare annotation was computed. [2023-11-29 03:48:04,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-29 03:48:04,172 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 03:48:04,172 INFO L895 garLoopResultBuilder]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse3 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse6 (+ |ULTIMATE.start_main_~r~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (<= 0 |ULTIMATE.start_main_~r~0#1|))) (or (let ((.cse4 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse2 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|))) (and .cse0 .cse1 (= .cse2 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| .cse3) (<= (+ .cse2 1) .cse4) .cse5 (<= 1 |ULTIMATE.start_main_~a~0#1|) (<= .cse4 (+ .cse2 5)) (<= .cse6 (* |ULTIMATE.start_main_~y~0#1| 4)))) (and (<= .cse6 |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= (+ |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) 5) .cse7 (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 1)) (and .cse0 .cse1 (or (and (= .cse3 |ULTIMATE.start_main_~b~0#1|) (<= (+ .cse3 |ULTIMATE.start_main_~r~0#1|) 5) (= 2 |ULTIMATE.start_main_~q~0#1|) (<= .cse6 |ULTIMATE.start_main_~b~0#1|) (= 2 |ULTIMATE.start_main_~a~0#1|) (or (< 0 |ULTIMATE.start_main_~r~0#1|) .cse5)) (and (= |ULTIMATE.start_main_~b~0#1| 4) (or .cse5 (= |ULTIMATE.start_main_~r~0#1| 1)) (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 4) (= |ULTIMATE.start_main_~a~0#1| 4)))) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (= |ULTIMATE.start_main_~b~0#1| 0) .cse7 (<= |ULTIMATE.start_main_~r~0#1| 5) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| 0)))) [2023-11-29 03:48:04,172 INFO L899 garLoopResultBuilder]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2023-11-29 03:48:04,172 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-11-29 03:48:04,173 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2023-11-29 03:48:04,173 INFO L899 garLoopResultBuilder]: For program point L55-1(line 55) no Hoare annotation was computed. [2023-11-29 03:48:04,173 INFO L899 garLoopResultBuilder]: For program point L55-2(line 55) no Hoare annotation was computed. [2023-11-29 03:48:04,173 INFO L899 garLoopResultBuilder]: For program point L55-3(line 55) no Hoare annotation was computed. [2023-11-29 03:48:04,173 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-29 03:48:04,173 INFO L895 garLoopResultBuilder]: At program point L55-4(line 55) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse2 (<= (* 2 |ULTIMATE.start_main_~b~0#1|) |ULTIMATE.start_main_~r~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~r~0#1| 5)) (.cse4 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 (= |ULTIMATE.start_main_~a~0#1| 1) (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse4) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) (= (* 2 |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~b~0#1|) .cse2 .cse3 .cse4 (= 2 |ULTIMATE.start_main_~a~0#1|)))) [2023-11-29 03:48:04,173 INFO L899 garLoopResultBuilder]: For program point L55-5(line 55) no Hoare annotation was computed. [2023-11-29 03:48:04,173 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse3 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse2 (= |ULTIMATE.start_main_~a~0#1| 1)) (.cse8 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse9 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse10 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse6 (<= |ULTIMATE.start_main_~r~0#1| 5)) (.cse7 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse4 (<= |ULTIMATE.start_main_~b~0#1| (* (div |ULTIMATE.start_main_~r~0#1| 2) 2))) (.cse5 (= 2 |ULTIMATE.start_main_~a~0#1|))) (or (and (= |ULTIMATE.start_main_~b~0#1| 1) .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 4) (= |ULTIMATE.start_main_~r~0#1| 1)) (and .cse0 .cse1 .cse3 (<= (+ |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) 5) (= |ULTIMATE.start_main_~q~0#1| 1) .cse4 .cse5 (<= (+ 2 (* (div |ULTIMATE.start_main_~r~0#1| 4) 2)) |ULTIMATE.start_main_~b~0#1|)) (and .cse0 .cse1 (= (* |ULTIMATE.start_main_~y~0#1| 4) |ULTIMATE.start_main_~b~0#1|) (<= (+ (* (div (+ (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 2) 2) |ULTIMATE.start_main_~r~0#1|) (<= 4 |ULTIMATE.start_main_~b~0#1|) .cse6 .cse7 (= |ULTIMATE.start_main_~a~0#1| 4)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse6 .cse2 .cse8 .cse7 .cse9) (and .cse0 .cse1 .cse3 .cse2 .cse8 (<= (+ .cse10 |ULTIMATE.start_main_~r~0#1|) 5) (= 2 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) .cse9) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) (= .cse10 |ULTIMATE.start_main_~b~0#1|) .cse6 .cse7 .cse4 .cse5))) [2023-11-29 03:48:04,173 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2023-11-29 03:48:04,173 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-29 03:48:04,173 INFO L899 garLoopResultBuilder]: For program point L39(line 39) no Hoare annotation was computed. [2023-11-29 03:48:04,173 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L895 garLoopResultBuilder]: At program point L39-2(line 39) the Hoare annotation is: (let ((.cse3 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse5 (+ |ULTIMATE.start_main_~r~0#1| 1)) (.cse6 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (<= 0 |ULTIMATE.start_main_~r~0#1|))) (or (let ((.cse4 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse2 (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|))) (and .cse0 .cse1 (= .cse2 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| .cse3) (<= (+ .cse2 1) .cse4) (<= .cse5 (* 2 |ULTIMATE.start_main_~b~0#1|)) .cse6 (<= .cse4 (+ .cse2 5)))) (and (<= .cse5 |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= (+ |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) 5) .cse7 (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 1)) (and .cse0 .cse1 (or (and (= .cse3 |ULTIMATE.start_main_~b~0#1|) (<= (+ .cse3 |ULTIMATE.start_main_~r~0#1|) 5) (= 2 |ULTIMATE.start_main_~q~0#1|) (<= .cse5 |ULTIMATE.start_main_~b~0#1|) (= 2 |ULTIMATE.start_main_~a~0#1|) (or (< 0 |ULTIMATE.start_main_~r~0#1|) .cse6)) (and (= |ULTIMATE.start_main_~b~0#1| 4) (or .cse6 (= |ULTIMATE.start_main_~r~0#1| 1)) (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 4) (= |ULTIMATE.start_main_~a~0#1| 4)))) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 5) (= |ULTIMATE.start_main_~b~0#1| 0) .cse7 (<= |ULTIMATE.start_main_~r~0#1| 5) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| 0)))) [2023-11-29 03:48:04,174 INFO L899 garLoopResultBuilder]: For program point L39-3(line 39) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L899 garLoopResultBuilder]: For program point L64-1(line 64) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L899 garLoopResultBuilder]: For program point L64-2(line 64) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L902 garLoopResultBuilder]: At program point L64-3(line 64) the Hoare annotation is: true [2023-11-29 03:48:04,174 INFO L899 garLoopResultBuilder]: For program point L64-4(line 64) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 57) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L899 garLoopResultBuilder]: For program point L48-1(line 48) no Hoare annotation was computed. [2023-11-29 03:48:04,174 INFO L895 garLoopResultBuilder]: At program point L48-2(line 48) the Hoare annotation is: (let ((.cse3 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (.cse2 (= |ULTIMATE.start_main_~a~0#1| 1)) (.cse8 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse9 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse10 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse6 (<= |ULTIMATE.start_main_~r~0#1| 5)) (.cse7 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse4 (<= |ULTIMATE.start_main_~b~0#1| (* (div |ULTIMATE.start_main_~r~0#1| 2) 2))) (.cse5 (= 2 |ULTIMATE.start_main_~a~0#1|))) (or (and (= |ULTIMATE.start_main_~b~0#1| 1) .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 4) (= |ULTIMATE.start_main_~r~0#1| 1)) (and .cse0 .cse1 .cse3 (<= (+ |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) 5) (= |ULTIMATE.start_main_~q~0#1| 1) .cse4 .cse5 (<= (+ 2 (* (div |ULTIMATE.start_main_~r~0#1| 4) 2)) |ULTIMATE.start_main_~b~0#1|)) (and .cse0 .cse1 (= (* |ULTIMATE.start_main_~y~0#1| 4) |ULTIMATE.start_main_~b~0#1|) (<= (+ (* (div (+ (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 2) 2) |ULTIMATE.start_main_~r~0#1|) (<= 4 |ULTIMATE.start_main_~b~0#1|) .cse6 .cse7 (= |ULTIMATE.start_main_~a~0#1| 4)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse6 .cse2 .cse8 .cse7 .cse9) (and .cse0 .cse1 .cse3 .cse2 .cse8 (<= (+ .cse10 |ULTIMATE.start_main_~r~0#1|) 5) (= 2 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) .cse9) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) (= .cse10 |ULTIMATE.start_main_~b~0#1|) .cse6 .cse7 .cse4 .cse5))) [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point L48-3(line 48) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point L40-2(line 40) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L895 garLoopResultBuilder]: At program point L40-3(line 40) the Hoare annotation is: (let ((.cse15 (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|))) (let ((.cse6 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse7 (<= 1 |ULTIMATE.start_main_~q~0#1|)) (.cse4 (= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~b~0#1|)) (.cse2 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse8 (<= |ULTIMATE.start_main_~b~0#1| 4611686018427387903)) (.cse9 (<= 1 |ULTIMATE.start_main_~a~0#1|)) (.cse12 (<= |ULTIMATE.start_main_~r~0#1| 0)) (.cse10 (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~r~0#1| .cse15))) (.cse13 (<= .cse15 9223372036854775807)) (.cse3 (+ |ULTIMATE.start_main_~r~0#1| 1)) (.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse14 (<= 0 |ULTIMATE.start_main_~r~0#1|))) (or (and .cse0 .cse1 (< 0 |ULTIMATE.start_main_~r~0#1|) (= .cse2 |ULTIMATE.start_main_~b~0#1|) (<= .cse3 .cse2) (= 2 |ULTIMATE.start_main_~q~0#1|) (<= (+ |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) 5) (= 2 |ULTIMATE.start_main_~a~0#1|)) (and .cse0 .cse1 (let ((.cse5 (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))) (or (and .cse4 .cse5 .cse6 (<= 0 |ULTIMATE.start_main_~q~0#1|)) (and .cse7 .cse4 .cse5 .cse8 .cse9 .cse10))) .cse11 (<= 1 |ULTIMATE.start_main_~b~0#1|) .cse12 .cse13) (and .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| 4) (or .cse6 (= |ULTIMATE.start_main_~r~0#1| 1)) (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 4) (= |ULTIMATE.start_main_~a~0#1| 4)) (and .cse0 (<= 2 |ULTIMATE.start_main_~b~0#1|) .cse1 .cse7 .cse4 (<= |ULTIMATE.start_main_~b~0#1| .cse2) .cse11 .cse8 .cse9 .cse12 .cse10 (<= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~q~0#1|) .cse13) (and (<= .cse3 |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (<= (+ |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|) 5) .cse14 (= |ULTIMATE.start_main_~a~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 1)) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) .cse11 (= |ULTIMATE.start_main_~b~0#1| 0) .cse14 (<= |ULTIMATE.start_main_~r~0#1| 5) (= |ULTIMATE.start_main_~q~0#1| 0) (= |ULTIMATE.start_main_~a~0#1| 0))))) [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point L40-4(lines 38 62) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-29 03:48:04,175 INFO L899 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2023-11-29 03:48:04,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-29 03:48:04,176 INFO L899 garLoopResultBuilder]: For program point L49-2(line 49) no Hoare annotation was computed. [2023-11-29 03:48:04,176 INFO L895 garLoopResultBuilder]: At program point L49-3(line 49) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_main_~a~0#1| 1)) (.cse5 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse6 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~r~0#1| 5)) (.cse4 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and (= |ULTIMATE.start_main_~b~0#1| 1) .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 4) (= |ULTIMATE.start_main_~r~0#1| 1)) (and .cse0 .cse1 (= (* |ULTIMATE.start_main_~y~0#1| 4) |ULTIMATE.start_main_~b~0#1|) (<= (+ (* (div (+ (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 2) 2) |ULTIMATE.start_main_~r~0#1|) (<= 4 |ULTIMATE.start_main_~b~0#1|) .cse3 .cse4 (= |ULTIMATE.start_main_~a~0#1| 4)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse3 .cse2 .cse5 .cse4 .cse6) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|)) .cse2 .cse5 (<= (+ .cse7 |ULTIMATE.start_main_~r~0#1|) 5) (= 2 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) .cse6) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) (= .cse7 |ULTIMATE.start_main_~b~0#1|) .cse3 .cse4 (<= |ULTIMATE.start_main_~b~0#1| (* (div |ULTIMATE.start_main_~r~0#1| 2) 2)) (= 2 |ULTIMATE.start_main_~a~0#1|)))) [2023-11-29 03:48:04,176 INFO L895 garLoopResultBuilder]: At program point L49-4(line 49) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_main_~a~0#1| 1)) (.cse5 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse6 (<= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|)) (.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse7 (* 2 |ULTIMATE.start_main_~y~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~r~0#1| 5)) (.cse4 (= |ULTIMATE.start_main_~q~0#1| 0))) (or (and (= |ULTIMATE.start_main_~b~0#1| 1) .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~y~0#1| 1) (= |ULTIMATE.start_main_~q~0#1| 4) (= |ULTIMATE.start_main_~r~0#1| 1)) (and .cse0 .cse1 (= (* |ULTIMATE.start_main_~y~0#1| 4) |ULTIMATE.start_main_~b~0#1|) (<= (+ (* (div (+ (- 1) |ULTIMATE.start_main_~b~0#1|) 2) 2) 2) |ULTIMATE.start_main_~r~0#1|) (<= 4 |ULTIMATE.start_main_~b~0#1|) .cse3 .cse4 (= |ULTIMATE.start_main_~a~0#1| 4)) (and .cse0 .cse1 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse3 .cse2 .cse5 .cse4 .cse6) (and .cse0 .cse1 (<= (+ |ULTIMATE.start_main_~r~0#1| 1) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~y~0#1|)) .cse2 .cse5 (<= (+ .cse7 |ULTIMATE.start_main_~r~0#1|) 5) (= 2 |ULTIMATE.start_main_~q~0#1|) (<= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~r~0#1|) .cse6) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~y~0#1|) (= .cse7 |ULTIMATE.start_main_~b~0#1|) .cse3 .cse4 (<= |ULTIMATE.start_main_~b~0#1| (* (div |ULTIMATE.start_main_~r~0#1| 2) 2)) (= 2 |ULTIMATE.start_main_~a~0#1|)))) [2023-11-29 03:48:04,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 03:48:04,176 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-29 03:48:04,176 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-11-29 03:48:04,176 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-11-29 03:48:04,177 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 64) no Hoare annotation was computed. [2023-11-29 03:48:04,177 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 58) no Hoare annotation was computed. [2023-11-29 03:48:04,177 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2023-11-29 03:48:04,177 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2023-11-29 03:48:04,177 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 60) no Hoare annotation was computed. [2023-11-29 03:48:04,177 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-29 03:48:04,177 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2023-11-29 03:48:04,177 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 48) no Hoare annotation was computed. [2023-11-29 03:48:04,177 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-29 03:48:04,178 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 13) no Hoare annotation was computed. [2023-11-29 03:48:04,178 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 13) the Hoare annotation is: true [2023-11-29 03:48:04,178 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2023-11-29 03:48:04,178 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2023-11-29 03:48:04,178 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2023-11-29 03:48:04,178 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-29 03:48:04,178 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-29 03:48:04,181 INFO L445 BasicCegarLoop]: Path program histogram: [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:48:04,184 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:48:04,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:48:04 BoogieIcfgContainer [2023-11-29 03:48:04,200 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:48:04,201 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:48:04,201 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:48:04,201 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:48:04,202 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:41:50" (3/4) ... [2023-11-29 03:48:04,203 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 03:48:04,207 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-29 03:48:04,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-29 03:48:04,213 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-29 03:48:04,213 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 03:48:04,214 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 03:48:04,214 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 03:48:04,300 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:48:04,301 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 03:48:04,301 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:48:04,301 INFO L158 Benchmark]: Toolchain (without parser) took 374949.25ms. Allocated memory was 209.7MB in the beginning and 650.1MB in the end (delta: 440.4MB). Free memory was 171.6MB in the beginning and 385.9MB in the end (delta: -214.3MB). Peak memory consumption was 229.2MB. Max. memory is 16.1GB. [2023-11-29 03:48:04,302 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:48:04,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.68ms. Allocated memory is still 209.7MB. Free memory was 171.6MB in the beginning and 160.5MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 03:48:04,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.93ms. Allocated memory is still 209.7MB. Free memory was 160.5MB in the beginning and 159.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:48:04,302 INFO L158 Benchmark]: Boogie Preprocessor took 45.26ms. Allocated memory is still 209.7MB. Free memory was 159.0MB in the beginning and 157.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:48:04,303 INFO L158 Benchmark]: RCFGBuilder took 502.37ms. Allocated memory is still 209.7MB. Free memory was 157.0MB in the beginning and 141.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:48:04,303 INFO L158 Benchmark]: TraceAbstraction took 373986.69ms. Allocated memory was 209.7MB in the beginning and 650.1MB in the end (delta: 440.4MB). Free memory was 140.7MB in the beginning and 391.2MB in the end (delta: -250.4MB). Peak memory consumption was 357.2MB. Max. memory is 16.1GB. [2023-11-29 03:48:04,303 INFO L158 Benchmark]: Witness Printer took 100.04ms. Allocated memory is still 650.1MB. Free memory was 391.2MB in the beginning and 385.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:48:04,304 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory is still 55.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.68ms. Allocated memory is still 209.7MB. Free memory was 171.6MB in the beginning and 160.5MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.93ms. Allocated memory is still 209.7MB. Free memory was 160.5MB in the beginning and 159.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.26ms. Allocated memory is still 209.7MB. Free memory was 159.0MB in the beginning and 157.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 502.37ms. Allocated memory is still 209.7MB. Free memory was 157.0MB in the beginning and 141.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 373986.69ms. Allocated memory was 209.7MB in the beginning and 650.1MB in the end (delta: 440.4MB). Free memory was 140.7MB in the beginning and 391.2MB in the end (delta: -250.4MB). Peak memory consumption was 357.2MB. Max. memory is 16.1GB. * Witness Printer took 100.04ms. Allocated memory is still 650.1MB. Free memory was 391.2MB in the beginning and 385.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 87 locations, 30 error locations. Started 1 CEGAR loops. OverallTime: 373.9s, OverallIterations: 39, TraceHistogramMax: 27, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 235.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 72.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 60 mSolverCounterUnknown, 7288 SdHoareTripleChecker+Valid, 176.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7074 mSDsluCounter, 10025 SdHoareTripleChecker+Invalid, 174.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7663 mSDsCounter, 916 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15166 IncrementalHoareTripleChecker+Invalid, 16142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 916 mSolverCounterUnsat, 2362 mSDtfsCounter, 15166 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5941 GetRequests, 5425 SyntacticMatches, 14 SemanticMatches, 502 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1690 ImplicationChecksByTransitivity, 94.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=835occurred in iteration=25, InterpolantAutomatonStates: 386, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 39 MinimizatonAttempts, 2461 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 241 PreInvPairs, 296 NumberOfFragments, 1331 HoareAnnotationTreeSize, 241 FomulaSimplifications, 1885786 FormulaSimplificationTreeSizeReduction, 52.1s HoareSimplificationTime, 14 FomulaSimplificationsInter, 28341 FormulaSimplificationTreeSizeReductionInter, 20.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 51.8s InterpolantComputationTime, 3990 NumberOfCodeBlocks, 3507 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 5467 ConstructedInterpolants, 34 QuantifiedInterpolants, 22479 SizeOfPredicates, 129 NumberOfNonLiveVariables, 6637 ConjunctsInSsa, 430 ConjunctsInUnsatCore, 50 InterpolantComputations, 16 PerfectInterpolantSequences, 15759/16837 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 30 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((((((((b == 1) && (x <= 5)) && (0 <= x)) && (a == 1)) && (y == 1)) && (q == 4)) && (r == 1)) || ((((((((x <= 5) && (0 <= x)) && ((r + 1) <= (q * y))) && ((r + y) <= 5)) && (q == 1)) && (b <= ((r / 2) * 2))) && (2 == a)) && ((2 + ((r / 4) * 2)) <= b))) || ((((((((x <= 5) && (0 <= x)) && ((y * 4) == b)) && (((((-1 + b) / 2) * 2) + 2) <= r)) && (4 <= b)) && (r <= 5)) && (q == 0)) && (a == 4))) || ((((((((x <= 5) && (0 <= x)) && (b == y)) && (r <= 5)) && (a == 1)) && (1 <= b)) && (q == 0)) && (y <= r))) || (((((((((x <= 5) && (0 <= x)) && ((r + 1) <= (q * y))) && (a == 1)) && (1 <= b)) && (((2 * y) + r) <= 5)) && (2 == q)) && (b <= r)) && (y <= r))) || ((((((((x <= 5) && (0 <= x)) && (1 <= y)) && ((2 * y) == b)) && (r <= 5)) && (q == 0)) && (b <= ((r / 2) * 2))) && (2 == a))) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((((((((x <= 5) && (0 <= x)) && ((a * y) == b)) && (b <= (2 * y))) && (((a * y) + 1) <= (q * y))) && (r == 0)) && (1 <= a)) && ((q * y) <= ((a * y) + 5))) && ((r + 1) <= (y * 4))) || (((((((((r + 1) <= y) && (x <= 5)) && (0 <= x)) && (b == y)) && ((r + y) <= 5)) && (0 <= r)) && (a == 1)) && (q == 1))) || (((x <= 5) && (0 <= x)) && ((((((((2 * y) == b) && (((2 * y) + r) <= 5)) && (2 == q)) && ((r + 1) <= b)) && (2 == a)) && ((0 < r) || (r == 0))) || (((((b == 4) && ((r == 0) || (r == 1))) && (y == 1)) && (q == 4)) && (a == 4))))) || (((((((((x <= 5) && (0 <= x)) && (1 <= y)) && (y <= 5)) && (b == 0)) && (0 <= r)) && (r <= 5)) && (q == 0)) && (a == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-29 03:48:04,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcf361c5-a003-4778-87b7-45175db734be/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE