./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/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_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/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_34d96c31-3ccc-4737-9109-5453b2d0a18c/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 77987d39218daa3d8ca19fe9337f6493b276d704fa95c2d6fb7800ec30efdcea --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:50:48,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:50:48,965 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:50:48,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:50:48,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:50:49,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:50:49,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:50:49,002 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:50:49,002 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:50:49,003 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:50:49,004 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:50:49,005 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:50:49,006 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:50:49,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:50:49,007 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:50:49,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:50:49,009 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:50:49,009 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:50:49,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:50:49,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:50:49,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:50:49,012 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:50:49,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:50:49,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:50:49,014 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:50:49,015 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:50:49,015 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:50:49,016 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:50:49,016 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:50:49,017 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:50:49,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:50:49,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:50:49,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:50:49,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:50:49,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:50:49,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:50:49,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:50:49,019 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:50:49,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:50:49,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:50:49,020 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:50:49,020 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:50:49,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:50:49,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:50:49,021 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_34d96c31-3ccc-4737-9109-5453b2d0a18c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77987d39218daa3d8ca19fe9337f6493b276d704fa95c2d6fb7800ec30efdcea [2023-11-29 06:50:49,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:50:49,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:50:49,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:50:49,333 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:50:49,334 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:50:49,335 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound5.c [2023-11-29 06:50:52,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:50:53,022 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:50:53,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound5.c [2023-11-29 06:50:53,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/data/53c0dccc1/aeee093f2998465bb136b28e5e99cb2c/FLAGad8208cb6 [2023-11-29 06:50:53,051 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/data/53c0dccc1/aeee093f2998465bb136b28e5e99cb2c [2023-11-29 06:50:53,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:50:53,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:50:53,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:50:53,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:50:53,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:50:53,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ecd6a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53, skipping insertion in model container [2023-11-29 06:50:53,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,096 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:50:53,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:50:53,324 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:50:53,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:50:53,368 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:50:53,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53 WrapperNode [2023-11-29 06:50:53,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:50:53,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:50:53,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:50:53,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:50:53,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,421 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2023-11-29 06:50:53,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:50:53,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:50:53,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:50:53,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:50:53,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,440 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,457 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 06:50:53,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,466 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:50:53,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:50:53,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:50:53,474 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:50:53,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (1/1) ... [2023-11-29 06:50:53,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:50:53,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:53,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:50:53,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:50:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:50:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 06:50:53,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 06:50:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:50:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:50:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:50:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 06:50:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 06:50:53,618 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:50:53,620 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:50:54,056 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:50:54,087 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:50:54,087 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 06:50:54,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:50:54 BoogieIcfgContainer [2023-11-29 06:50:54,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:50:54,092 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:50:54,092 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:50:54,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:50:54,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:50:53" (1/3) ... [2023-11-29 06:50:54,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b25687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:50:54, skipping insertion in model container [2023-11-29 06:50:54,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:50:53" (2/3) ... [2023-11-29 06:50:54,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b25687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:50:54, skipping insertion in model container [2023-11-29 06:50:54,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:50:54" (3/3) ... [2023-11-29 06:50:54,100 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_unwindbound5.c [2023-11-29 06:50:54,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:50:54,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2023-11-29 06:50:54,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:50:54,197 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;@61c38f41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:50:54,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2023-11-29 06:50:54,203 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 129 states have internal predecessors, (135), 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 06:50:54,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 06:50:54,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:54,214 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:54,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:50:54,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:54,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1649939746, now seen corresponding path program 1 times [2023-11-29 06:50:54,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:54,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698947403] [2023-11-29 06:50:54,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:54,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:54,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:50:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:54,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 06:50:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:50:54,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:54,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698947403] [2023-11-29 06:50:54,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698947403] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:54,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:54,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:50:54,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12281712] [2023-11-29 06:50:54,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:54,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:50:54,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:54,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:50:54,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:50:54,453 INFO L87 Difference]: Start difference. First operand has 141 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 129 states have internal predecessors, (135), 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:50:54,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:54,500 INFO L93 Difference]: Finished difference Result 280 states and 312 transitions. [2023-11-29 06:50:54,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:50:54,505 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2023-11-29 06:50:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:54,515 INFO L225 Difference]: With dead ends: 280 [2023-11-29 06:50:54,515 INFO L226 Difference]: Without dead ends: 138 [2023-11-29 06:50:54,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 06:50:54,523 INFO L413 NwaCegarLoop]: 148 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, 148 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 06:50:54,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 148 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:50:54,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-29 06:50:54,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-11-29 06:50:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 70 states have (on average 1.8571428571428572) internal successors, (130), 127 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 06:50:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 146 transitions. [2023-11-29 06:50:54,606 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 146 transitions. Word has length 14 [2023-11-29 06:50:54,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:54,606 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 146 transitions. [2023-11-29 06:50:54,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 06:50:54,607 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 146 transitions. [2023-11-29 06:50:54,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-29 06:50:54,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:54,609 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:54,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:50:54,609 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:50:54,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:54,610 INFO L85 PathProgramCache]: Analyzing trace with hash -891616866, now seen corresponding path program 1 times [2023-11-29 06:50:54,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:54,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053752397] [2023-11-29 06:50:54,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:54,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:54,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 06:50:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-29 06:50:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:50:54,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:54,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053752397] [2023-11-29 06:50:54,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053752397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:54,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:54,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:54,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618943640] [2023-11-29 06:50:54,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:54,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:50:54,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:54,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:50:54,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:54,785 INFO L87 Difference]: Start difference. First operand 138 states and 146 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:54,858 INFO L93 Difference]: Finished difference Result 203 states and 213 transitions. [2023-11-29 06:50:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:50:54,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-29 06:50:54,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:54,862 INFO L225 Difference]: With dead ends: 203 [2023-11-29 06:50:54,862 INFO L226 Difference]: Without dead ends: 142 [2023-11-29 06:50:54,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 06:50:54,866 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 9 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:54,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 413 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:50:54,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-29 06:50:54,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-29 06:50:54,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 74 states have (on average 1.8108108108108107) internal successors, (134), 131 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-29 06:50:54,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 150 transitions. [2023-11-29 06:50:54,888 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 150 transitions. Word has length 14 [2023-11-29 06:50:54,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:54,890 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 150 transitions. [2023-11-29 06:50:54,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:54,890 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 150 transitions. [2023-11-29 06:50:54,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 06:50:54,891 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:54,891 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:54,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:50:54,892 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:50:54,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:54,893 INFO L85 PathProgramCache]: Analyzing trace with hash -2080252688, now seen corresponding path program 1 times [2023-11-29 06:50:54,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:54,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540738049] [2023-11-29 06:50:54,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:54,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:54,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:54,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230980094] [2023-11-29 06:50:54,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:54,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:54,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:54,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:54,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:50:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:54,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:50:54,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:55,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:50:55,055 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:55,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:55,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540738049] [2023-11-29 06:50:55,056 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:55,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230980094] [2023-11-29 06:50:55,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230980094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:55,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:55,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:50:55,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553974578] [2023-11-29 06:50:55,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:55,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:50:55,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:55,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:50:55,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:50:55,060 INFO L87 Difference]: Start difference. First operand 142 states and 150 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:55,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:55,330 INFO L93 Difference]: Finished difference Result 258 states and 273 transitions. [2023-11-29 06:50:55,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:50:55,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-29 06:50:55,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:55,335 INFO L225 Difference]: With dead ends: 258 [2023-11-29 06:50:55,335 INFO L226 Difference]: Without dead ends: 256 [2023-11-29 06:50:55,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 06:50:55,337 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 107 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:55,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 145 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:50:55,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-29 06:50:55,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 179. [2023-11-29 06:50:55,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 106 states have (on average 1.849056603773585) internal successors, (196), 163 states have internal predecessors, (196), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 06:50:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 222 transitions. [2023-11-29 06:50:55,362 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 222 transitions. Word has length 17 [2023-11-29 06:50:55,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:55,363 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 222 transitions. [2023-11-29 06:50:55,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:55,363 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 222 transitions. [2023-11-29 06:50:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 06:50:55,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:55,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:55,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:50:55,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:55,572 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:50:55,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:55,573 INFO L85 PathProgramCache]: Analyzing trace with hash -63323835, now seen corresponding path program 1 times [2023-11-29 06:50:55,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:55,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297638375] [2023-11-29 06:50:55,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:55,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:55,592 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:55,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [567122760] [2023-11-29 06:50:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:55,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:55,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:55,595 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:55,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:50:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:55,658 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:50:55,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:55,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:50:55,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:55,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:55,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297638375] [2023-11-29 06:50:55,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:55,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567122760] [2023-11-29 06:50:55,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567122760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:55,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:55,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:50:55,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644880855] [2023-11-29 06:50:55,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:55,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:50:55,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:55,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:50:55,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:50:55,710 INFO L87 Difference]: Start difference. First operand 179 states and 222 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:55,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:55,940 INFO L93 Difference]: Finished difference Result 256 states and 271 transitions. [2023-11-29 06:50:55,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:50:55,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 06:50:55,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:55,944 INFO L225 Difference]: With dead ends: 256 [2023-11-29 06:50:55,944 INFO L226 Difference]: Without dead ends: 254 [2023-11-29 06:50:55,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 06:50:55,946 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 104 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:55,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 163 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:50:55,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-29 06:50:55,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 180. [2023-11-29 06:50:55,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 107 states have (on average 1.8317757009345794) internal successors, (196), 164 states have internal predecessors, (196), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 06:50:55,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 222 transitions. [2023-11-29 06:50:55,967 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 222 transitions. Word has length 18 [2023-11-29 06:50:55,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:55,967 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 222 transitions. [2023-11-29 06:50:55,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:55,968 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 222 transitions. [2023-11-29 06:50:55,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 06:50:55,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:55,969 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:55,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 06:50:56,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:56,172 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:50:56,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:56,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1963038830, now seen corresponding path program 1 times [2023-11-29 06:50:56,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:56,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245919637] [2023-11-29 06:50:56,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:56,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:56,187 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:56,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066300834] [2023-11-29 06:50:56,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:56,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:56,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:56,190 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:56,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:50:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:56,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:50:56,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:56,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:50:56,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:56,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245919637] [2023-11-29 06:50:56,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:56,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066300834] [2023-11-29 06:50:56,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066300834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:56,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:56,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:50:56,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122291710] [2023-11-29 06:50:56,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:56,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:50:56,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:56,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:50:56,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:50:56,266 INFO L87 Difference]: Start difference. First operand 180 states and 222 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:56,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:56,431 INFO L93 Difference]: Finished difference Result 302 states and 352 transitions. [2023-11-29 06:50:56,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:50:56,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-29 06:50:56,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:56,438 INFO L225 Difference]: With dead ends: 302 [2023-11-29 06:50:56,440 INFO L226 Difference]: Without dead ends: 294 [2023-11-29 06:50:56,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 06:50:56,445 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 103 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:56,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 222 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:50:56,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-29 06:50:56,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 236. [2023-11-29 06:50:56,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 157 states have (on average 1.7898089171974523) internal successors, (281), 214 states have internal predecessors, (281), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 06:50:56,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2023-11-29 06:50:56,503 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 19 [2023-11-29 06:50:56,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:56,503 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2023-11-29 06:50:56,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:56,504 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2023-11-29 06:50:56,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-29 06:50:56,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:56,505 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:56,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:50:56,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:56,712 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:50:56,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:56,713 INFO L85 PathProgramCache]: Analyzing trace with hash -989670860, now seen corresponding path program 1 times [2023-11-29 06:50:56,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:56,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445275108] [2023-11-29 06:50:56,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:56,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:56,730 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:56,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598571418] [2023-11-29 06:50:56,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:56,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:56,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:56,732 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:56,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:50:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:56,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:50:56,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:56,875 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:50:56,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:56,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:56,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445275108] [2023-11-29 06:50:56,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:56,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598571418] [2023-11-29 06:50:56,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598571418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:56,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:56,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:50:56,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204744517] [2023-11-29 06:50:56,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:56,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:50:56,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:56,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:50:56,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:50:56,878 INFO L87 Difference]: Start difference. First operand 236 states and 319 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:57,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:57,117 INFO L93 Difference]: Finished difference Result 294 states and 338 transitions. [2023-11-29 06:50:57,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:50:57,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2023-11-29 06:50:57,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:57,120 INFO L225 Difference]: With dead ends: 294 [2023-11-29 06:50:57,121 INFO L226 Difference]: Without dead ends: 287 [2023-11-29 06:50:57,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 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 06:50:57,123 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 93 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:57,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 163 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:50:57,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-29 06:50:57,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 240. [2023-11-29 06:50:57,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 161 states have (on average 1.7453416149068324) internal successors, (281), 218 states have internal predecessors, (281), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-29 06:50:57,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 319 transitions. [2023-11-29 06:50:57,140 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 319 transitions. Word has length 21 [2023-11-29 06:50:57,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:57,141 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 319 transitions. [2023-11-29 06:50:57,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:57,141 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 319 transitions. [2023-11-29 06:50:57,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 06:50:57,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:57,142 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:57,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:50:57,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:57,344 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:50:57,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:57,345 INFO L85 PathProgramCache]: Analyzing trace with hash -615025527, now seen corresponding path program 1 times [2023-11-29 06:50:57,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:57,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21483597] [2023-11-29 06:50:57,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:57,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:57,356 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:57,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140637087] [2023-11-29 06:50:57,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:57,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:57,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:57,358 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:57,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:50:57,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:57,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:50:57,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:50:57,459 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:57,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:57,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21483597] [2023-11-29 06:50:57,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:57,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140637087] [2023-11-29 06:50:57,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140637087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:57,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:57,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:50:57,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930925188] [2023-11-29 06:50:57,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:57,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:50:57,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:57,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:50:57,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:50:57,462 INFO L87 Difference]: Start difference. First operand 240 states and 319 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:57,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:57,699 INFO L93 Difference]: Finished difference Result 287 states and 330 transitions. [2023-11-29 06:50:57,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:50:57,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-29 06:50:57,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:57,702 INFO L225 Difference]: With dead ends: 287 [2023-11-29 06:50:57,702 INFO L226 Difference]: Without dead ends: 282 [2023-11-29 06:50:57,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 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 06:50:57,704 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 180 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:57,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 197 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:50:57,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-29 06:50:57,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 202. [2023-11-29 06:50:57,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 128 states have (on average 1.7265625) internal successors, (221), 185 states have internal predecessors, (221), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 06:50:57,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 249 transitions. [2023-11-29 06:50:57,719 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 249 transitions. Word has length 22 [2023-11-29 06:50:57,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:57,720 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 249 transitions. [2023-11-29 06:50:57,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 06:50:57,720 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 249 transitions. [2023-11-29 06:50:57,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-29 06:50:57,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:57,721 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:57,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:50:57,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:57,922 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:50:57,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:57,923 INFO L85 PathProgramCache]: Analyzing trace with hash -749701369, now seen corresponding path program 1 times [2023-11-29 06:50:57,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:57,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510210290] [2023-11-29 06:50:57,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:57,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:57,936 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:57,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028050724] [2023-11-29 06:50:57,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:57,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:57,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:57,938 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:57,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:50:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:57,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 06:50:57,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:50:58,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:58,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:58,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510210290] [2023-11-29 06:50:58,241 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:58,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028050724] [2023-11-29 06:50:58,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028050724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:58,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:58,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:50:58,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564826030] [2023-11-29 06:50:58,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:58,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:50:58,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:58,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:50:58,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:50:58,244 INFO L87 Difference]: Start difference. First operand 202 states and 249 transitions. Second operand has 9 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:50:59,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:50:59,237 INFO L93 Difference]: Finished difference Result 382 states and 475 transitions. [2023-11-29 06:50:59,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:50:59,238 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2023-11-29 06:50:59,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:50:59,241 INFO L225 Difference]: With dead ends: 382 [2023-11-29 06:50:59,241 INFO L226 Difference]: Without dead ends: 380 [2023-11-29 06:50:59,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:50:59,243 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 308 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:50:59,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 470 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:50:59,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-29 06:50:59,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 274. [2023-11-29 06:50:59,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 192 states have (on average 1.7447916666666667) internal successors, (335), 249 states have internal predecessors, (335), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:50:59,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 379 transitions. [2023-11-29 06:50:59,264 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 379 transitions. Word has length 28 [2023-11-29 06:50:59,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:50:59,264 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 379 transitions. [2023-11-29 06:50:59,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:50:59,265 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 379 transitions. [2023-11-29 06:50:59,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-29 06:50:59,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:50:59,266 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:50:59,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:50:59,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:59,468 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:50:59,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:50:59,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1765905893, now seen corresponding path program 1 times [2023-11-29 06:50:59,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:50:59,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375083914] [2023-11-29 06:50:59,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:59,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:50:59,484 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:50:59,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470329905] [2023-11-29 06:50:59,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:50:59,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:50:59,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:50:59,487 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:50:59,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:50:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:50:59,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:50:59,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:50:59,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:50:59,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:50:59,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:50:59,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375083914] [2023-11-29 06:50:59,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:50:59,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470329905] [2023-11-29 06:50:59,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470329905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:50:59,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:50:59,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:50:59,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852903982] [2023-11-29 06:50:59,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:50:59,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:50:59,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:50:59,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:50:59,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:50:59,704 INFO L87 Difference]: Start difference. First operand 274 states and 379 transitions. Second operand has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 06:51:00,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:00,781 INFO L93 Difference]: Finished difference Result 382 states and 471 transitions. [2023-11-29 06:51:00,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:51:00,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 29 [2023-11-29 06:51:00,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:00,785 INFO L225 Difference]: With dead ends: 382 [2023-11-29 06:51:00,785 INFO L226 Difference]: Without dead ends: 380 [2023-11-29 06:51:00,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 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 06:51:00,786 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 350 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:00,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 295 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:51:00,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-29 06:51:00,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 276. [2023-11-29 06:51:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 194 states have (on average 1.7268041237113403) internal successors, (335), 251 states have internal predecessors, (335), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-29 06:51:00,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 379 transitions. [2023-11-29 06:51:00,810 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 379 transitions. Word has length 29 [2023-11-29 06:51:00,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:00,811 INFO L495 AbstractCegarLoop]: Abstraction has 276 states and 379 transitions. [2023-11-29 06:51:00,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 06:51:00,811 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 379 transitions. [2023-11-29 06:51:00,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 06:51:00,812 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:00,812 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:00,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:51:01,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 06:51:01,015 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:01,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:01,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1091492233, now seen corresponding path program 1 times [2023-11-29 06:51:01,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:01,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088172254] [2023-11-29 06:51:01,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:01,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:01,024 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:01,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [42601764] [2023-11-29 06:51:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:01,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:01,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:01,026 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:01,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:51:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:01,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:51:01,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:51:01,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:51:01,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:01,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088172254] [2023-11-29 06:51:01,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:01,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42601764] [2023-11-29 06:51:01,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42601764] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:51:01,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:51:01,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:51:01,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076204454] [2023-11-29 06:51:01,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:01,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:51:01,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:01,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:51:01,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:51:01,310 INFO L87 Difference]: Start difference. First operand 276 states and 379 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 06:51:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:01,938 INFO L93 Difference]: Finished difference Result 408 states and 502 transitions. [2023-11-29 06:51:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:51:01,938 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 30 [2023-11-29 06:51:01,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:01,941 INFO L225 Difference]: With dead ends: 408 [2023-11-29 06:51:01,941 INFO L226 Difference]: Without dead ends: 406 [2023-11-29 06:51:01,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:51:01,942 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 757 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:01,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 248 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:51:01,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-11-29 06:51:01,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 298. [2023-11-29 06:51:01,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 213 states have (on average 1.7136150234741785) internal successors, (365), 270 states have internal predecessors, (365), 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 06:51:01,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 415 transitions. [2023-11-29 06:51:01,959 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 415 transitions. Word has length 30 [2023-11-29 06:51:01,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:01,959 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 415 transitions. [2023-11-29 06:51:01,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-29 06:51:01,959 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 415 transitions. [2023-11-29 06:51:01,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 06:51:01,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:01,960 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:01,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:51:02,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:02,164 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:02,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:02,164 INFO L85 PathProgramCache]: Analyzing trace with hash -523479075, now seen corresponding path program 1 times [2023-11-29 06:51:02,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:02,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767134297] [2023-11-29 06:51:02,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:02,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:02,174 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:02,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [539696917] [2023-11-29 06:51:02,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:02,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:02,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:02,175 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:02,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:51:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:02,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:51:02,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:02,284 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 06:51:02,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:02,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:02,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767134297] [2023-11-29 06:51:02,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:02,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539696917] [2023-11-29 06:51:02,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539696917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:02,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:02,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:51:02,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537072418] [2023-11-29 06:51:02,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:02,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:51:02,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:02,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:51:02,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:51:02,286 INFO L87 Difference]: Start difference. First operand 298 states and 415 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:51:02,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:02,498 INFO L93 Difference]: Finished difference Result 394 states and 495 transitions. [2023-11-29 06:51:02,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:51:02,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-29 06:51:02,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:02,501 INFO L225 Difference]: With dead ends: 394 [2023-11-29 06:51:02,501 INFO L226 Difference]: Without dead ends: 392 [2023-11-29 06:51:02,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 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 06:51:02,503 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 315 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:02,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 146 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:51:02,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-11-29 06:51:02,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 298. [2023-11-29 06:51:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 213 states have (on average 1.6948356807511737) internal successors, (361), 270 states have internal predecessors, (361), 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 06:51:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 411 transitions. [2023-11-29 06:51:02,521 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 411 transitions. Word has length 31 [2023-11-29 06:51:02,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:02,522 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 411 transitions. [2023-11-29 06:51:02,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-29 06:51:02,522 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 411 transitions. [2023-11-29 06:51:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 06:51:02,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:02,523 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:02,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 06:51:02,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 06:51:02,728 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:02,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:02,729 INFO L85 PathProgramCache]: Analyzing trace with hash 952017931, now seen corresponding path program 1 times [2023-11-29 06:51:02,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:02,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164682605] [2023-11-29 06:51:02,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:02,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:02,737 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:02,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870299818] [2023-11-29 06:51:02,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:02,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:02,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:02,739 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:02,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:51:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:02,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:51:02,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:02,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:51:02,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:03,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:03,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164682605] [2023-11-29 06:51:03,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:03,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870299818] [2023-11-29 06:51:03,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870299818] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:03,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:03,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:51:03,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997465497] [2023-11-29 06:51:03,033 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:03,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:51:03,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:03,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:51:03,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:51:03,034 INFO L87 Difference]: Start difference. First operand 298 states and 411 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:51:03,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:03,921 INFO L93 Difference]: Finished difference Result 392 states and 491 transitions. [2023-11-29 06:51:03,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:51:03,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2023-11-29 06:51:03,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:03,925 INFO L225 Difference]: With dead ends: 392 [2023-11-29 06:51:03,926 INFO L226 Difference]: Without dead ends: 386 [2023-11-29 06:51:03,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:51:03,927 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 303 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:03,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 222 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:51:03,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-11-29 06:51:03,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 306. [2023-11-29 06:51:03,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 220 states have (on average 1.6681818181818182) internal successors, (367), 277 states have internal predecessors, (367), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:03,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 419 transitions. [2023-11-29 06:51:03,944 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 419 transitions. Word has length 32 [2023-11-29 06:51:03,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:03,945 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 419 transitions. [2023-11-29 06:51:03,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:51:03,945 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 419 transitions. [2023-11-29 06:51:03,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 06:51:03,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:03,946 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:03,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:04,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:04,147 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:04,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:04,147 INFO L85 PathProgramCache]: Analyzing trace with hash -552215137, now seen corresponding path program 1 times [2023-11-29 06:51:04,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:04,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123411650] [2023-11-29 06:51:04,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:04,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:04,160 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:04,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108727783] [2023-11-29 06:51:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:04,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:04,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:04,163 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:04,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:51:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:04,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:51:04,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 06:51:04,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:04,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:04,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123411650] [2023-11-29 06:51:04,382 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:04,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108727783] [2023-11-29 06:51:04,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108727783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:04,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:04,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 06:51:04,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125019066] [2023-11-29 06:51:04,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:04,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:51:04,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:04,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:51:04,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:51:04,385 INFO L87 Difference]: Start difference. First operand 306 states and 419 transitions. Second operand has 8 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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 06:51:05,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:05,863 INFO L93 Difference]: Finished difference Result 392 states and 491 transitions. [2023-11-29 06:51:05,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:51:05,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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 33 [2023-11-29 06:51:05,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:05,866 INFO L225 Difference]: With dead ends: 392 [2023-11-29 06:51:05,867 INFO L226 Difference]: Without dead ends: 390 [2023-11-29 06:51:05,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:51:05,868 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 394 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:05,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 273 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:51:05,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2023-11-29 06:51:05,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 307. [2023-11-29 06:51:05,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.6515837104072397) internal successors, (365), 278 states have internal predecessors, (365), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:05,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 417 transitions. [2023-11-29 06:51:05,893 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 417 transitions. Word has length 33 [2023-11-29 06:51:05,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:05,893 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 417 transitions. [2023-11-29 06:51:05,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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 06:51:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 417 transitions. [2023-11-29 06:51:05,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-29 06:51:05,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:05,894 INFO L195 NwaCegarLoop]: trace histogram [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 06:51:05,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:51:06,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:06,102 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:06,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:06,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1173963144, now seen corresponding path program 1 times [2023-11-29 06:51:06,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:06,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833421811] [2023-11-29 06:51:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:06,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:06,112 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:06,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [599287137] [2023-11-29 06:51:06,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:06,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:06,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:06,114 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:06,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:51:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:06,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:51:06,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:51:06,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:06,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:06,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833421811] [2023-11-29 06:51:06,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:06,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599287137] [2023-11-29 06:51:06,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599287137] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:06,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:06,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:51:06,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230305922] [2023-11-29 06:51:06,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:06,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:51:06,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:06,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:51:06,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:51:06,295 INFO L87 Difference]: Start difference. First operand 307 states and 417 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:51:06,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:06,605 INFO L93 Difference]: Finished difference Result 355 states and 436 transitions. [2023-11-29 06:51:06,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:51:06,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-11-29 06:51:06,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:06,609 INFO L225 Difference]: With dead ends: 355 [2023-11-29 06:51:06,609 INFO L226 Difference]: Without dead ends: 353 [2023-11-29 06:51:06,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:51:06,610 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 274 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:06,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 334 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:51:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-29 06:51:06,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 308. [2023-11-29 06:51:06,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 222 states have (on average 1.6396396396396395) internal successors, (364), 279 states have internal predecessors, (364), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:06,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 416 transitions. [2023-11-29 06:51:06,634 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 416 transitions. Word has length 41 [2023-11-29 06:51:06,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:06,635 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 416 transitions. [2023-11-29 06:51:06,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:51:06,635 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 416 transitions. [2023-11-29 06:51:06,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-29 06:51:06,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:06,636 INFO L195 NwaCegarLoop]: trace histogram [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 06:51:06,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 06:51:06,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:06,840 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:06,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:06,841 INFO L85 PathProgramCache]: Analyzing trace with hash 2033119179, now seen corresponding path program 1 times [2023-11-29 06:51:06,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:06,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304000385] [2023-11-29 06:51:06,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:06,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:06,854 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:06,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1350697317] [2023-11-29 06:51:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:06,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:06,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:06,856 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:06,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 06:51:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:06,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:51:06,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:07,012 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:51:07,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:07,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:07,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304000385] [2023-11-29 06:51:07,013 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:07,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350697317] [2023-11-29 06:51:07,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350697317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:07,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:07,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:51:07,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317918610] [2023-11-29 06:51:07,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:07,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:51:07,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:07,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:51:07,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:51:07,014 INFO L87 Difference]: Start difference. First operand 308 states and 416 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:51:07,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:07,221 INFO L93 Difference]: Finished difference Result 353 states and 433 transitions. [2023-11-29 06:51:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:51:07,222 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-11-29 06:51:07,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:07,225 INFO L225 Difference]: With dead ends: 353 [2023-11-29 06:51:07,225 INFO L226 Difference]: Without dead ends: 351 [2023-11-29 06:51:07,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:51:07,226 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 265 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:07,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 162 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:51:07,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2023-11-29 06:51:07,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 309. [2023-11-29 06:51:07,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 223 states have (on average 1.6278026905829597) internal successors, (363), 280 states have internal predecessors, (363), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 415 transitions. [2023-11-29 06:51:07,249 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 415 transitions. Word has length 42 [2023-11-29 06:51:07,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:07,249 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 415 transitions. [2023-11-29 06:51:07,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:51:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 415 transitions. [2023-11-29 06:51:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-29 06:51:07,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:07,251 INFO L195 NwaCegarLoop]: trace histogram [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 06:51:07,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 06:51:07,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 06:51:07,456 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:07,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:07,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1397814806, now seen corresponding path program 1 times [2023-11-29 06:51:07,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:07,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040175509] [2023-11-29 06:51:07,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:07,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:07,466 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:07,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195830534] [2023-11-29 06:51:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:07,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:07,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:07,468 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:07,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 06:51:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:07,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:51:07,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:07,701 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:51:07,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:07,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:07,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040175509] [2023-11-29 06:51:07,701 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:07,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195830534] [2023-11-29 06:51:07,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195830534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:07,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:07,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:51:07,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728006268] [2023-11-29 06:51:07,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:07,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:51:07,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:07,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:51:07,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:51:07,704 INFO L87 Difference]: Start difference. First operand 309 states and 415 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:51:08,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:08,237 INFO L93 Difference]: Finished difference Result 345 states and 422 transitions. [2023-11-29 06:51:08,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:51:08,237 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-11-29 06:51:08,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:08,240 INFO L225 Difference]: With dead ends: 345 [2023-11-29 06:51:08,240 INFO L226 Difference]: Without dead ends: 343 [2023-11-29 06:51:08,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:51:08,241 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 196 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:08,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 335 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:51:08,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2023-11-29 06:51:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 310. [2023-11-29 06:51:08,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 224 states have (on average 1.6160714285714286) internal successors, (362), 281 states have internal predecessors, (362), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:08,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 414 transitions. [2023-11-29 06:51:08,266 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 414 transitions. Word has length 43 [2023-11-29 06:51:08,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:08,266 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 414 transitions. [2023-11-29 06:51:08,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 06:51:08,266 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 414 transitions. [2023-11-29 06:51:08,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 06:51:08,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:08,267 INFO L195 NwaCegarLoop]: trace histogram [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 06:51:08,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 06:51:08,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 06:51:08,468 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:08,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:08,469 INFO L85 PathProgramCache]: Analyzing trace with hash -382585939, now seen corresponding path program 1 times [2023-11-29 06:51:08,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:08,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051528700] [2023-11-29 06:51:08,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:08,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:08,480 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:08,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [751259962] [2023-11-29 06:51:08,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:08,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:08,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:08,482 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:08,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 06:51:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:08,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:51:08,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:08,742 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 06:51:08,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:09,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:09,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051528700] [2023-11-29 06:51:09,569 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:09,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751259962] [2023-11-29 06:51:09,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751259962] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:09,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:09,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:51:09,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078467674] [2023-11-29 06:51:09,570 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:09,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:51:09,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:09,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:51:09,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:51:09,571 INFO L87 Difference]: Start difference. First operand 310 states and 414 transitions. Second operand has 8 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:51:11,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:11,046 INFO L93 Difference]: Finished difference Result 343 states and 419 transitions. [2023-11-29 06:51:11,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:51:11,047 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2023-11-29 06:51:11,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:11,049 INFO L225 Difference]: With dead ends: 343 [2023-11-29 06:51:11,049 INFO L226 Difference]: Without dead ends: 341 [2023-11-29 06:51:11,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:51:11,050 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 399 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:11,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 371 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:51:11,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-29 06:51:11,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 311. [2023-11-29 06:51:11,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 225 states have (on average 1.6044444444444443) internal successors, (361), 282 states have internal predecessors, (361), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:11,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 413 transitions. [2023-11-29 06:51:11,075 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 413 transitions. Word has length 44 [2023-11-29 06:51:11,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:11,075 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 413 transitions. [2023-11-29 06:51:11,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 06:51:11,075 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 413 transitions. [2023-11-29 06:51:11,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 06:51:11,076 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:11,076 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:11,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 06:51:11,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 06:51:11,277 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:11,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:11,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1889396222, now seen corresponding path program 1 times [2023-11-29 06:51:11,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:11,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367776990] [2023-11-29 06:51:11,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:11,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:11,292 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:11,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852905156] [2023-11-29 06:51:11,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:11,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:11,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:11,295 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:11,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 06:51:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:11,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:51:11,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:11,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:11,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:11,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367776990] [2023-11-29 06:51:11,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:11,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852905156] [2023-11-29 06:51:11,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852905156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:11,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:11,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:51:11,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995641833] [2023-11-29 06:51:11,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:11,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:51:11,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:11,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:51:11,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:51:11,366 INFO L87 Difference]: Start difference. First operand 311 states and 413 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:51:11,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:11,432 INFO L93 Difference]: Finished difference Result 401 states and 521 transitions. [2023-11-29 06:51:11,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:51:11,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 51 [2023-11-29 06:51:11,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:11,436 INFO L225 Difference]: With dead ends: 401 [2023-11-29 06:51:11,436 INFO L226 Difference]: Without dead ends: 399 [2023-11-29 06:51:11,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 06:51:11,438 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 51 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:11,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 294 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:51:11,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-11-29 06:51:11,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 312. [2023-11-29 06:51:11,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 227 states have (on average 1.5814977973568283) internal successors, (359), 283 states have internal predecessors, (359), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:11,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 411 transitions. [2023-11-29 06:51:11,463 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 411 transitions. Word has length 51 [2023-11-29 06:51:11,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:11,464 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 411 transitions. [2023-11-29 06:51:11,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:51:11,464 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 411 transitions. [2023-11-29 06:51:11,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 06:51:11,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:11,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:11,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:11,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-29 06:51:11,666 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:11,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:11,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1558259392, now seen corresponding path program 1 times [2023-11-29 06:51:11,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:11,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726284871] [2023-11-29 06:51:11,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:11,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:11,676 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:11,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [267847686] [2023-11-29 06:51:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:11,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:11,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:11,678 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:11,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 06:51:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:11,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 06:51:11,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:11,752 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:11,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:11,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:11,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726284871] [2023-11-29 06:51:11,753 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:11,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267847686] [2023-11-29 06:51:11,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267847686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:11,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:11,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:51:11,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84820534] [2023-11-29 06:51:11,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:11,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:51:11,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:11,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:51:11,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:51:11,755 INFO L87 Difference]: Start difference. First operand 312 states and 411 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:51:11,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:11,832 INFO L93 Difference]: Finished difference Result 400 states and 515 transitions. [2023-11-29 06:51:11,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:51:11,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2023-11-29 06:51:11,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:11,836 INFO L225 Difference]: With dead ends: 400 [2023-11-29 06:51:11,836 INFO L226 Difference]: Without dead ends: 398 [2023-11-29 06:51:11,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 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 06:51:11,837 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 49 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:11,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 294 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:51:11,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-29 06:51:11,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 313. [2023-11-29 06:51:11,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 229 states have (on average 1.5502183406113537) internal successors, (355), 284 states have internal predecessors, (355), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 407 transitions. [2023-11-29 06:51:11,861 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 407 transitions. Word has length 52 [2023-11-29 06:51:11,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:11,862 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 407 transitions. [2023-11-29 06:51:11,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 06:51:11,862 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 407 transitions. [2023-11-29 06:51:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:51:11,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:11,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:11,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 06:51:12,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:12,068 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:12,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:12,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1061442736, now seen corresponding path program 1 times [2023-11-29 06:51:12,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:12,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975948070] [2023-11-29 06:51:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:12,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:12,079 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:12,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053719262] [2023-11-29 06:51:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:12,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:12,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:12,082 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:12,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 06:51:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:12,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:51:12,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:12,289 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:12,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:12,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:12,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975948070] [2023-11-29 06:51:12,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:12,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053719262] [2023-11-29 06:51:12,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053719262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:12,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:12,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:51:12,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500373932] [2023-11-29 06:51:12,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:12,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:51:12,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:12,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:51:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:51:12,292 INFO L87 Difference]: Start difference. First operand 313 states and 407 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:12,545 INFO L93 Difference]: Finished difference Result 341 states and 435 transitions. [2023-11-29 06:51:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:51:12,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2023-11-29 06:51:12,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:12,549 INFO L225 Difference]: With dead ends: 341 [2023-11-29 06:51:12,549 INFO L226 Difference]: Without dead ends: 340 [2023-11-29 06:51:12,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 06:51:12,550 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 187 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:12,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 180 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:51:12,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-11-29 06:51:12,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 313. [2023-11-29 06:51:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 229 states have (on average 1.5458515283842795) internal successors, (354), 284 states have internal predecessors, (354), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 406 transitions. [2023-11-29 06:51:12,576 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 406 transitions. Word has length 53 [2023-11-29 06:51:12,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:12,577 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 406 transitions. [2023-11-29 06:51:12,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:12,577 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 406 transitions. [2023-11-29 06:51:12,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-29 06:51:12,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:12,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:12,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 06:51:12,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:12,786 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:12,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:12,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1061428834, now seen corresponding path program 1 times [2023-11-29 06:51:12,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:12,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269976158] [2023-11-29 06:51:12,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:12,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:12,797 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:12,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2080520673] [2023-11-29 06:51:12,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:12,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:12,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:12,800 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:12,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 06:51:12,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:12,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:51:12,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:12,997 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:12,998 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:12,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:12,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269976158] [2023-11-29 06:51:12,998 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:12,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080520673] [2023-11-29 06:51:12,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080520673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:12,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:12,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:51:12,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693890264] [2023-11-29 06:51:12,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:12,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:51:13,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:13,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:51:13,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:51:13,001 INFO L87 Difference]: Start difference. First operand 313 states and 406 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:13,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:13,247 INFO L93 Difference]: Finished difference Result 340 states and 434 transitions. [2023-11-29 06:51:13,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:51:13,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2023-11-29 06:51:13,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:13,250 INFO L225 Difference]: With dead ends: 340 [2023-11-29 06:51:13,251 INFO L226 Difference]: Without dead ends: 339 [2023-11-29 06:51:13,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 06:51:13,252 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 195 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:13,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 177 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:51:13,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-11-29 06:51:13,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 315. [2023-11-29 06:51:13,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 231 states have (on average 1.5411255411255411) internal successors, (356), 286 states have internal predecessors, (356), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:13,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 408 transitions. [2023-11-29 06:51:13,270 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 408 transitions. Word has length 53 [2023-11-29 06:51:13,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:13,270 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 408 transitions. [2023-11-29 06:51:13,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:13,271 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 408 transitions. [2023-11-29 06:51:13,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-29 06:51:13,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:13,272 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:13,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-29 06:51:13,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:13,475 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:13,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:13,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1455013436, now seen corresponding path program 1 times [2023-11-29 06:51:13,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:13,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158562066] [2023-11-29 06:51:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:13,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:13,490 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:13,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622743089] [2023-11-29 06:51:13,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:13,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:13,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:13,493 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:13,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 06:51:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:13,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:51:13,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:13,650 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:13,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:13,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:13,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158562066] [2023-11-29 06:51:13,650 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:13,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622743089] [2023-11-29 06:51:13,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622743089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:13,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:13,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:51:13,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764231921] [2023-11-29 06:51:13,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:13,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:51:13,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:13,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:51:13,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:51:13,652 INFO L87 Difference]: Start difference. First operand 315 states and 408 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:14,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:14,092 INFO L93 Difference]: Finished difference Result 343 states and 411 transitions. [2023-11-29 06:51:14,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:51:14,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2023-11-29 06:51:14,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:14,096 INFO L225 Difference]: With dead ends: 343 [2023-11-29 06:51:14,096 INFO L226 Difference]: Without dead ends: 341 [2023-11-29 06:51:14,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 06:51:14,097 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:14,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 166 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:51:14,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2023-11-29 06:51:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 315. [2023-11-29 06:51:14,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 231 states have (on average 1.5281385281385282) internal successors, (353), 286 states have internal predecessors, (353), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:14,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 405 transitions. [2023-11-29 06:51:14,117 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 405 transitions. Word has length 54 [2023-11-29 06:51:14,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:14,117 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 405 transitions. [2023-11-29 06:51:14,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:14,117 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 405 transitions. [2023-11-29 06:51:14,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 06:51:14,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:14,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:14,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-29 06:51:14,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:14,319 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:14,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:14,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1891430278, now seen corresponding path program 1 times [2023-11-29 06:51:14,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:14,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811913129] [2023-11-29 06:51:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:14,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:14,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655139424] [2023-11-29 06:51:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:14,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:14,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:14,331 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:14,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 06:51:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:14,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:51:14,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:14,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:14,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811913129] [2023-11-29 06:51:14,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655139424] [2023-11-29 06:51:14,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655139424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:14,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:14,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:51:14,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400455924] [2023-11-29 06:51:14,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:14,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:51:14,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:14,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:51:14,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:51:14,532 INFO L87 Difference]: Start difference. First operand 315 states and 405 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:15,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:15,028 INFO L93 Difference]: Finished difference Result 315 states and 405 transitions. [2023-11-29 06:51:15,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:51:15,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2023-11-29 06:51:15,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:15,031 INFO L225 Difference]: With dead ends: 315 [2023-11-29 06:51:15,031 INFO L226 Difference]: Without dead ends: 313 [2023-11-29 06:51:15,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 06:51:15,032 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 88 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:15,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 84 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:51:15,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-29 06:51:15,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2023-11-29 06:51:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 231 states have (on average 1.5108225108225108) internal successors, (349), 284 states have internal predecessors, (349), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:15,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 401 transitions. [2023-11-29 06:51:15,059 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 401 transitions. Word has length 56 [2023-11-29 06:51:15,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:15,060 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 401 transitions. [2023-11-29 06:51:15,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 401 transitions. [2023-11-29 06:51:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-29 06:51:15,061 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:15,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:15,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-29 06:51:15,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 06:51:15,262 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:15,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:15,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1477261894, now seen corresponding path program 1 times [2023-11-29 06:51:15,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:15,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664582694] [2023-11-29 06:51:15,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:15,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:15,275 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:15,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2007012241] [2023-11-29 06:51:15,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:15,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:15,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:15,277 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:15,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 06:51:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:15,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:51:15,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:15,450 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:15,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664582694] [2023-11-29 06:51:15,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007012241] [2023-11-29 06:51:15,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007012241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:15,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:15,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:51:15,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525872887] [2023-11-29 06:51:15,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:15,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:51:15,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:15,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:51:15,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:51:15,453 INFO L87 Difference]: Start difference. First operand 313 states and 401 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:15,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:15,765 INFO L93 Difference]: Finished difference Result 394 states and 467 transitions. [2023-11-29 06:51:15,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:51:15,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 56 [2023-11-29 06:51:15,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:15,768 INFO L225 Difference]: With dead ends: 394 [2023-11-29 06:51:15,768 INFO L226 Difference]: Without dead ends: 392 [2023-11-29 06:51:15,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 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 06:51:15,769 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 70 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:15,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 151 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:51:15,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2023-11-29 06:51:15,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 321. [2023-11-29 06:51:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 239 states have (on average 1.502092050209205) internal successors, (359), 292 states have internal predecessors, (359), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:15,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 411 transitions. [2023-11-29 06:51:15,797 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 411 transitions. Word has length 56 [2023-11-29 06:51:15,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:15,798 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 411 transitions. [2023-11-29 06:51:15,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:15,798 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 411 transitions. [2023-11-29 06:51:15,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 06:51:15,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:15,799 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:15,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 06:51:15,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 06:51:16,000 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:16,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:16,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1923574198, now seen corresponding path program 1 times [2023-11-29 06:51:16,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:16,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072468879] [2023-11-29 06:51:16,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:16,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:16,010 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:16,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1581584255] [2023-11-29 06:51:16,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:16,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:16,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:16,014 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:16,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 06:51:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:16,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:51:16,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:16,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:16,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:16,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072468879] [2023-11-29 06:51:16,178 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:16,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581584255] [2023-11-29 06:51:16,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581584255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:16,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:16,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:51:16,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417376246] [2023-11-29 06:51:16,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:16,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:51:16,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:16,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:51:16,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:51:16,180 INFO L87 Difference]: Start difference. First operand 321 states and 411 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:16,243 INFO L93 Difference]: Finished difference Result 321 states and 411 transitions. [2023-11-29 06:51:16,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:51:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2023-11-29 06:51:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:16,246 INFO L225 Difference]: With dead ends: 321 [2023-11-29 06:51:16,247 INFO L226 Difference]: Without dead ends: 320 [2023-11-29 06:51:16,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:51:16,248 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 101 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:16,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 406 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:51:16,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-29 06:51:16,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2023-11-29 06:51:16,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 239 states have (on average 1.4853556485355648) internal successors, (355), 291 states have internal predecessors, (355), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-29 06:51:16,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 407 transitions. [2023-11-29 06:51:16,276 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 407 transitions. Word has length 59 [2023-11-29 06:51:16,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:16,276 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 407 transitions. [2023-11-29 06:51:16,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:16,277 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 407 transitions. [2023-11-29 06:51:16,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-29 06:51:16,278 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:16,278 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-29 06:51:16,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 06:51:16,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 06:51:16,484 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:16,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:16,485 INFO L85 PathProgramCache]: Analyzing trace with hash -498741962, now seen corresponding path program 1 times [2023-11-29 06:51:16,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:16,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013566032] [2023-11-29 06:51:16,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:16,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:16,494 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:16,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227613846] [2023-11-29 06:51:16,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:16,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:16,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:16,496 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:16,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 06:51:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:16,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:51:16,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:16,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:16,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:16,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013566032] [2023-11-29 06:51:16,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:16,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227613846] [2023-11-29 06:51:16,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227613846] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:51:16,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:51:16,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 06:51:16,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699392484] [2023-11-29 06:51:16,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:16,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:51:16,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:16,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:51:16,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:51:16,758 INFO L87 Difference]: Start difference. First operand 320 states and 407 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:51:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:17,004 INFO L93 Difference]: Finished difference Result 897 states and 1098 transitions. [2023-11-29 06:51:17,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:51:17,005 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 60 [2023-11-29 06:51:17,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:17,009 INFO L225 Difference]: With dead ends: 897 [2023-11-29 06:51:17,009 INFO L226 Difference]: Without dead ends: 812 [2023-11-29 06:51:17,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:51:17,011 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 276 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:17,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1073 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:51:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2023-11-29 06:51:17,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 675. [2023-11-29 06:51:17,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 557 states have (on average 1.4775583482944346) internal successors, (823), 614 states have internal predecessors, (823), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:51:17,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 943 transitions. [2023-11-29 06:51:17,079 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 943 transitions. Word has length 60 [2023-11-29 06:51:17,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:17,079 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 943 transitions. [2023-11-29 06:51:17,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:51:17,080 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 943 transitions. [2023-11-29 06:51:17,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 06:51:17,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:17,081 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-29 06:51:17,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:17,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 06:51:17,282 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:17,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:17,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1745313240, now seen corresponding path program 1 times [2023-11-29 06:51:17,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:17,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807317976] [2023-11-29 06:51:17,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:17,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:17,292 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:17,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123318689] [2023-11-29 06:51:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:17,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:17,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:17,293 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:17,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 06:51:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:17,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:51:17,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:17,616 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:17,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:17,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807317976] [2023-11-29 06:51:17,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:17,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123318689] [2023-11-29 06:51:17,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123318689] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:17,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:17,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 06:51:17,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507726570] [2023-11-29 06:51:17,724 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:17,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:51:17,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:17,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:51:17,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:51:17,726 INFO L87 Difference]: Start difference. First operand 675 states and 943 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:18,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:18,122 INFO L93 Difference]: Finished difference Result 738 states and 992 transitions. [2023-11-29 06:51:18,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:51:18,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 62 [2023-11-29 06:51:18,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:18,130 INFO L225 Difference]: With dead ends: 738 [2023-11-29 06:51:18,130 INFO L226 Difference]: Without dead ends: 736 [2023-11-29 06:51:18,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:51:18,132 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 64 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:18,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 195 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:51:18,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-11-29 06:51:18,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 677. [2023-11-29 06:51:18,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 559 states have (on average 1.4686940966010733) internal successors, (821), 616 states have internal predecessors, (821), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:51:18,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 941 transitions. [2023-11-29 06:51:18,202 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 941 transitions. Word has length 62 [2023-11-29 06:51:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:18,203 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 941 transitions. [2023-11-29 06:51:18,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:18,203 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 941 transitions. [2023-11-29 06:51:18,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 06:51:18,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:18,204 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:18,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-29 06:51:18,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 06:51:18,405 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:18,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:18,405 INFO L85 PathProgramCache]: Analyzing trace with hash 830797341, now seen corresponding path program 1 times [2023-11-29 06:51:18,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:18,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687605481] [2023-11-29 06:51:18,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:18,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:18,414 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:18,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043803509] [2023-11-29 06:51:18,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:18,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:18,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:18,417 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:18,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 06:51:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:18,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:51:18,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:18,569 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 06:51:18,569 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:18,724 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 06:51:18,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:18,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687605481] [2023-11-29 06:51:18,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:18,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043803509] [2023-11-29 06:51:18,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043803509] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:51:18,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:51:18,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 06:51:18,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407819516] [2023-11-29 06:51:18,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:18,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:51:18,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:18,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:51:18,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:51:18,728 INFO L87 Difference]: Start difference. First operand 677 states and 941 transitions. Second operand has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 06:51:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:19,588 INFO L93 Difference]: Finished difference Result 816 states and 1114 transitions. [2023-11-29 06:51:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:51:19,588 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 64 [2023-11-29 06:51:19,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:19,595 INFO L225 Difference]: With dead ends: 816 [2023-11-29 06:51:19,595 INFO L226 Difference]: Without dead ends: 815 [2023-11-29 06:51:19,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:51:19,597 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 174 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:19,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 224 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:51:19,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2023-11-29 06:51:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 701. [2023-11-29 06:51:19,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 583 states have (on average 1.4751286449399656) internal successors, (860), 640 states have internal predecessors, (860), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:51:19,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 980 transitions. [2023-11-29 06:51:19,677 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 980 transitions. Word has length 64 [2023-11-29 06:51:19,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:19,677 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 980 transitions. [2023-11-29 06:51:19,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.625) internal successors, (61), 9 states have internal predecessors, (61), 5 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-29 06:51:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 980 transitions. [2023-11-29 06:51:19,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 06:51:19,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:19,678 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2023-11-29 06:51:19,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 06:51:19,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 06:51:19,879 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:19,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:19,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1729864355, now seen corresponding path program 1 times [2023-11-29 06:51:19,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:19,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902032592] [2023-11-29 06:51:19,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:19,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:19,887 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:19,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1788053326] [2023-11-29 06:51:19,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:19,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:19,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:19,888 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:19,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 06:51:19,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:19,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:51:19,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:20,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:20,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:20,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902032592] [2023-11-29 06:51:20,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:20,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788053326] [2023-11-29 06:51:20,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788053326] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:20,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:20,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2023-11-29 06:51:20,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202102420] [2023-11-29 06:51:20,302 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:20,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:51:20,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:20,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:51:20,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:51:20,304 INFO L87 Difference]: Start difference. First operand 701 states and 980 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:20,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:20,679 INFO L93 Difference]: Finished difference Result 759 states and 1025 transitions. [2023-11-29 06:51:20,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:51:20,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2023-11-29 06:51:20,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:20,685 INFO L225 Difference]: With dead ends: 759 [2023-11-29 06:51:20,686 INFO L226 Difference]: Without dead ends: 757 [2023-11-29 06:51:20,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:51:20,687 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 61 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:20,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 199 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:51:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-11-29 06:51:20,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 703. [2023-11-29 06:51:20,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 585 states have (on average 1.4666666666666666) internal successors, (858), 642 states have internal predecessors, (858), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:51:20,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 978 transitions. [2023-11-29 06:51:20,783 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 978 transitions. Word has length 63 [2023-11-29 06:51:20,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:20,784 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 978 transitions. [2023-11-29 06:51:20,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:20,784 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 978 transitions. [2023-11-29 06:51:20,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 06:51:20,785 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:20,785 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:20,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:20,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 06:51:20,986 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:20,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:20,986 INFO L85 PathProgramCache]: Analyzing trace with hash -15086058, now seen corresponding path program 1 times [2023-11-29 06:51:20,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:20,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514297779] [2023-11-29 06:51:20,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:20,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:20,995 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:20,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655926021] [2023-11-29 06:51:20,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:20,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:20,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:20,998 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:20,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 06:51:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:21,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:51:21,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:21,406 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-29 06:51:21,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:21,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:21,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514297779] [2023-11-29 06:51:21,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:21,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655926021] [2023-11-29 06:51:21,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655926021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:21,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:21,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:51:21,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560918245] [2023-11-29 06:51:21,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:21,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:51:21,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:21,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:51:21,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:51:21,409 INFO L87 Difference]: Start difference. First operand 703 states and 978 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:51:23,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:23,772 INFO L93 Difference]: Finished difference Result 731 states and 981 transitions. [2023-11-29 06:51:23,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:51:23,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2023-11-29 06:51:23,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:23,776 INFO L225 Difference]: With dead ends: 731 [2023-11-29 06:51:23,776 INFO L226 Difference]: Without dead ends: 729 [2023-11-29 06:51:23,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 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 06:51:23,777 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 185 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:23,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 309 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 06:51:23,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2023-11-29 06:51:23,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 703. [2023-11-29 06:51:23,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 585 states have (on average 1.4547008547008546) internal successors, (851), 642 states have internal predecessors, (851), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:51:23,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 971 transitions. [2023-11-29 06:51:23,824 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 971 transitions. Word has length 65 [2023-11-29 06:51:23,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:23,824 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 971 transitions. [2023-11-29 06:51:23,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:51:23,825 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 971 transitions. [2023-11-29 06:51:23,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 06:51:23,825 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:23,825 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:51:23,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:24,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:24,026 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:24,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:24,026 INFO L85 PathProgramCache]: Analyzing trace with hash 923639580, now seen corresponding path program 1 times [2023-11-29 06:51:24,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:24,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719419757] [2023-11-29 06:51:24,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:24,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:24,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:24,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1764183530] [2023-11-29 06:51:24,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:24,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:24,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:24,037 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:24,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 06:51:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:24,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:51:24,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:24,149 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-29 06:51:24,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:24,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:24,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719419757] [2023-11-29 06:51:24,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:24,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764183530] [2023-11-29 06:51:24,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764183530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:24,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:24,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:51:24,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185775962] [2023-11-29 06:51:24,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:24,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:51:24,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:24,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:51:24,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:51:24,151 INFO L87 Difference]: Start difference. First operand 703 states and 971 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:24,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:24,640 INFO L93 Difference]: Finished difference Result 759 states and 1014 transitions. [2023-11-29 06:51:24,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:51:24,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 66 [2023-11-29 06:51:24,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:24,645 INFO L225 Difference]: With dead ends: 759 [2023-11-29 06:51:24,645 INFO L226 Difference]: Without dead ends: 758 [2023-11-29 06:51:24,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 63 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 06:51:24,646 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 147 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:24,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 180 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:51:24,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2023-11-29 06:51:24,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 703. [2023-11-29 06:51:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 585 states have (on average 1.4495726495726495) internal successors, (848), 642 states have internal predecessors, (848), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:51:24,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 968 transitions. [2023-11-29 06:51:24,712 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 968 transitions. Word has length 66 [2023-11-29 06:51:24,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:24,713 INFO L495 AbstractCegarLoop]: Abstraction has 703 states and 968 transitions. [2023-11-29 06:51:24,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 968 transitions. [2023-11-29 06:51:24,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 06:51:24,713 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:24,714 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 06:51:24,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 06:51:24,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:24,914 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:24,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:24,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1431944031, now seen corresponding path program 1 times [2023-11-29 06:51:24,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:24,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197842992] [2023-11-29 06:51:24,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:24,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:24,923 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:24,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440066583] [2023-11-29 06:51:24,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:24,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:24,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:24,925 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:24,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 06:51:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:24,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:51:24,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:25,049 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 06:51:25,049 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:51:25,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:25,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197842992] [2023-11-29 06:51:25,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:25,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440066583] [2023-11-29 06:51:25,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440066583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:51:25,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:51:25,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:51:25,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925452265] [2023-11-29 06:51:25,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:51:25,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:51:25,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:25,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:51:25,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:51:25,052 INFO L87 Difference]: Start difference. First operand 703 states and 968 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:25,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:25,994 INFO L93 Difference]: Finished difference Result 758 states and 1011 transitions. [2023-11-29 06:51:25,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:51:25,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2023-11-29 06:51:25,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:25,998 INFO L225 Difference]: With dead ends: 758 [2023-11-29 06:51:25,998 INFO L226 Difference]: Without dead ends: 755 [2023-11-29 06:51:25,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 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 06:51:25,998 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 84 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:25,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 221 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:51:26,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2023-11-29 06:51:26,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 709. [2023-11-29 06:51:26,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 591 states have (on average 1.4399323181049068) internal successors, (851), 648 states have internal predecessors, (851), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 06:51:26,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 971 transitions. [2023-11-29 06:51:26,039 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 971 transitions. Word has length 67 [2023-11-29 06:51:26,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:26,039 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 971 transitions. [2023-11-29 06:51:26,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 06:51:26,040 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 971 transitions. [2023-11-29 06:51:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 06:51:26,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:26,041 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 06:51:26,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:26,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-29 06:51:26,244 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:26,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:26,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1208303185, now seen corresponding path program 1 times [2023-11-29 06:51:26,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:26,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915572602] [2023-11-29 06:51:26,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:26,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:26,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:26,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024651821] [2023-11-29 06:51:26,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:26,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:26,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:26,255 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:26,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 06:51:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:26,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:51:26,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:27,256 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:27,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:27,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915572602] [2023-11-29 06:51:27,365 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:27,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024651821] [2023-11-29 06:51:27,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024651821] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:27,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:27,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:51:27,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789525034] [2023-11-29 06:51:27,365 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:27,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:51:27,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:27,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:51:27,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:51:27,367 INFO L87 Difference]: Start difference. First operand 709 states and 971 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 06:51:31,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:51:37,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:37,826 INFO L93 Difference]: Finished difference Result 955 states and 1241 transitions. [2023-11-29 06:51:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:51:37,826 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 73 [2023-11-29 06:51:37,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:37,831 INFO L225 Difference]: With dead ends: 955 [2023-11-29 06:51:37,832 INFO L226 Difference]: Without dead ends: 951 [2023-11-29 06:51:37,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:51:37,833 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 563 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:37,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 418 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 632 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2023-11-29 06:51:37,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-11-29 06:51:37,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 788. [2023-11-29 06:51:37,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 662 states have (on average 1.4501510574018126) internal successors, (960), 720 states have internal predecessors, (960), 68 states have call successors, (68), 5 states have call predecessors, (68), 5 states have return successors, (68), 62 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-29 06:51:37,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1096 transitions. [2023-11-29 06:51:37,904 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1096 transitions. Word has length 73 [2023-11-29 06:51:37,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:37,905 INFO L495 AbstractCegarLoop]: Abstraction has 788 states and 1096 transitions. [2023-11-29 06:51:37,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 06:51:37,905 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1096 transitions. [2023-11-29 06:51:37,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-29 06:51:37,905 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:37,905 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 06:51:37,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 06:51:38,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-29 06:51:38,106 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:38,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:38,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1197306863, now seen corresponding path program 1 times [2023-11-29 06:51:38,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:38,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580570522] [2023-11-29 06:51:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:38,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:38,115 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:38,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935779009] [2023-11-29 06:51:38,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:38,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:38,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:38,117 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:38,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 06:51:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:38,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:51:38,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:38,866 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:38,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:39,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:39,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580570522] [2023-11-29 06:51:39,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:39,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935779009] [2023-11-29 06:51:39,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935779009] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:39,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:39,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:51:39,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762766739] [2023-11-29 06:51:39,118 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:39,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:51:39,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:39,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:51:39,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:51:39,120 INFO L87 Difference]: Start difference. First operand 788 states and 1096 transitions. Second operand has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:51:46,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:51:51,780 WARN L539 Checker$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 06:51:52,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:52,851 INFO L93 Difference]: Finished difference Result 1086 states and 1496 transitions. [2023-11-29 06:51:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:51:52,852 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 74 [2023-11-29 06:51:52,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:52,856 INFO L225 Difference]: With dead ends: 1086 [2023-11-29 06:51:52,856 INFO L226 Difference]: Without dead ends: 1082 [2023-11-29 06:51:52,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:51:52,857 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 375 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:52,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 605 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 953 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2023-11-29 06:51:52,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2023-11-29 06:51:52,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 784. [2023-11-29 06:51:52,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 662 states have (on average 1.4108761329305135) internal successors, (934), 716 states have internal predecessors, (934), 68 states have call successors, (68), 5 states have call predecessors, (68), 5 states have return successors, (68), 62 states have call predecessors, (68), 68 states have call successors, (68) [2023-11-29 06:51:52,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1070 transitions. [2023-11-29 06:51:52,922 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1070 transitions. Word has length 74 [2023-11-29 06:51:52,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:52,922 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 1070 transitions. [2023-11-29 06:51:52,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.222222222222222) internal successors, (56), 10 states have internal predecessors, (56), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:51:52,922 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1070 transitions. [2023-11-29 06:51:52,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-29 06:51:52,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:52,923 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 06:51:52,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2023-11-29 06:51:53,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:53,123 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:53,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:53,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1538192979, now seen corresponding path program 1 times [2023-11-29 06:51:53,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:53,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814105333] [2023-11-29 06:51:53,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:53,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:53,129 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:53,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475966344] [2023-11-29 06:51:53,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:53,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:53,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:53,130 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:53,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-11-29 06:51:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:53,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:51:53,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:53,672 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:53,672 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:53,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:53,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814105333] [2023-11-29 06:51:53,731 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:53,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475966344] [2023-11-29 06:51:53,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475966344] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:53,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:53,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:51:53,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554056523] [2023-11-29 06:51:53,731 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:53,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:51:53,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:53,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:51:53,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:51:53,732 INFO L87 Difference]: Start difference. First operand 784 states and 1070 transitions. Second operand has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:51:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:51:57,262 INFO L93 Difference]: Finished difference Result 1139 states and 1497 transitions. [2023-11-29 06:51:57,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:51:57,263 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 75 [2023-11-29 06:51:57,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:51:57,269 INFO L225 Difference]: With dead ends: 1139 [2023-11-29 06:51:57,269 INFO L226 Difference]: Without dead ends: 1131 [2023-11-29 06:51:57,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:51:57,270 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 547 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:51:57,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 425 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-29 06:51:57,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-11-29 06:51:57,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 954. [2023-11-29 06:51:57,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 816 states have (on average 1.4424019607843137) internal successors, (1177), 871 states have internal predecessors, (1177), 84 states have call successors, (84), 5 states have call predecessors, (84), 5 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-29 06:51:57,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1345 transitions. [2023-11-29 06:51:57,357 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1345 transitions. Word has length 75 [2023-11-29 06:51:57,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:51:57,358 INFO L495 AbstractCegarLoop]: Abstraction has 954 states and 1345 transitions. [2023-11-29 06:51:57,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:51:57,358 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1345 transitions. [2023-11-29 06:51:57,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 06:51:57,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:51:57,358 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-11-29 06:51:57,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2023-11-29 06:51:57,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:57,559 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:51:57,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:51:57,560 INFO L85 PathProgramCache]: Analyzing trace with hash 439342163, now seen corresponding path program 1 times [2023-11-29 06:51:57,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:51:57,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678204681] [2023-11-29 06:51:57,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:57,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:51:57,571 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:51:57,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1989637687] [2023-11-29 06:51:57,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:51:57,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:51:57,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:51:57,573 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:51:57,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-11-29 06:51:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:51:57,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:51:57,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:51:58,320 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:51:58,320 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:51:58,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:51:58,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678204681] [2023-11-29 06:51:58,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:51:58,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989637687] [2023-11-29 06:51:58,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989637687] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:51:58,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:51:58,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:51:58,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298905276] [2023-11-29 06:51:58,564 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:51:58,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:51:58,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:51:58,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:51:58,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:51:58,565 INFO L87 Difference]: Start difference. First operand 954 states and 1345 transitions. Second operand has 12 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:52:01,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:52:06,449 WARN L539 Checker$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 06:52:11,196 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 06:52:11,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:52:11,391 INFO L93 Difference]: Finished difference Result 1057 states and 1454 transitions. [2023-11-29 06:52:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:52:11,392 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 76 [2023-11-29 06:52:11,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:52:11,399 INFO L225 Difference]: With dead ends: 1057 [2023-11-29 06:52:11,400 INFO L226 Difference]: Without dead ends: 1055 [2023-11-29 06:52:11,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:52:11,401 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 441 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:52:11,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 410 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1322 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2023-11-29 06:52:11,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2023-11-29 06:52:11,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 969. [2023-11-29 06:52:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 829 states have (on average 1.4318455971049457) internal successors, (1187), 884 states have internal predecessors, (1187), 86 states have call successors, (86), 5 states have call predecessors, (86), 5 states have return successors, (86), 79 states have call predecessors, (86), 86 states have call successors, (86) [2023-11-29 06:52:11,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1359 transitions. [2023-11-29 06:52:11,497 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1359 transitions. Word has length 76 [2023-11-29 06:52:11,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:52:11,497 INFO L495 AbstractCegarLoop]: Abstraction has 969 states and 1359 transitions. [2023-11-29 06:52:11,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 5.8) internal successors, (58), 11 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:52:11,498 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1359 transitions. [2023-11-29 06:52:11,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 06:52:11,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:52:11,498 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:52:11,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2023-11-29 06:52:11,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-11-29 06:52:11,699 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:52:11,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:52:11,700 INFO L85 PathProgramCache]: Analyzing trace with hash 734705237, now seen corresponding path program 1 times [2023-11-29 06:52:11,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:52:11,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534588417] [2023-11-29 06:52:11,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:11,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:52:11,709 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:52:11,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1628861350] [2023-11-29 06:52:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:52:11,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:52:11,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:52:11,711 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:52:11,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-11-29 06:52:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:52:11,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 06:52:11,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:52:12,676 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:52:12,677 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:52:13,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:52:13,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534588417] [2023-11-29 06:52:13,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:52:13,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628861350] [2023-11-29 06:52:13,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628861350] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:52:13,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:52:13,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:52:13,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634783778] [2023-11-29 06:52:13,158 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:52:13,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:52:13,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:52:13,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:52:13,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:52:13,159 INFO L87 Difference]: Start difference. First operand 969 states and 1359 transitions. Second operand has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:52:22,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:52:27,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:52:31,318 WARN L539 Checker$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 06:52:37,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:52:42,257 WARN L539 Checker$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 06:52:45,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:52:48,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:52:57,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:52:59,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:05,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:09,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:17,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:19,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:20,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:20,775 INFO L93 Difference]: Finished difference Result 1199 states and 1546 transitions. [2023-11-29 06:53:20,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:53:20,776 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 77 [2023-11-29 06:53:20,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:20,783 INFO L225 Difference]: With dead ends: 1199 [2023-11-29 06:53:20,783 INFO L226 Difference]: Without dead ends: 1196 [2023-11-29 06:53:20,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:53:20,784 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 550 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 31 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 2427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:20,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 564 Invalid, 2427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2390 Invalid, 6 Unknown, 0 Unchecked, 65.5s Time] [2023-11-29 06:53:20,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2023-11-29 06:53:20,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 961. [2023-11-29 06:53:20,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 822 states have (on average 1.4148418491484185) internal successors, (1163), 877 states have internal predecessors, (1163), 85 states have call successors, (85), 5 states have call predecessors, (85), 5 states have return successors, (85), 78 states have call predecessors, (85), 85 states have call successors, (85) [2023-11-29 06:53:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1333 transitions. [2023-11-29 06:53:20,908 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1333 transitions. Word has length 77 [2023-11-29 06:53:20,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:20,909 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1333 transitions. [2023-11-29 06:53:20,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.363636363636363) internal successors, (59), 10 states have internal predecessors, (59), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:53:20,909 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1333 transitions. [2023-11-29 06:53:20,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 06:53:20,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:20,910 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:53:20,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2023-11-29 06:53:21,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-11-29 06:53:21,111 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:53:21,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:21,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1301025941, now seen corresponding path program 1 times [2023-11-29 06:53:21,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:21,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823810870] [2023-11-29 06:53:21,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:21,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:21,122 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:53:21,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214723986] [2023-11-29 06:53:21,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:21,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:21,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:21,124 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:53:21,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-11-29 06:53:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:21,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:53:21,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 06:53:21,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:53:22,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:22,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823810870] [2023-11-29 06:53:22,550 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:53:22,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214723986] [2023-11-29 06:53:22,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214723986] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:53:22,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:53:22,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:53:22,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177763742] [2023-11-29 06:53:22,550 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:53:22,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:53:22,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:22,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:53:22,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:53:22,552 INFO L87 Difference]: Start difference. First operand 961 states and 1333 transitions. Second operand has 11 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:53:28,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:35,550 WARN L539 Checker$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 06:53:42,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:45,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:50,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 06:53:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:53,108 INFO L93 Difference]: Finished difference Result 1264 states and 1697 transitions. [2023-11-29 06:53:53,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:53:53,108 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 78 [2023-11-29 06:53:53,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:53,116 INFO L225 Difference]: With dead ends: 1264 [2023-11-29 06:53:53,116 INFO L226 Difference]: Without dead ends: 1260 [2023-11-29 06:53:53,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-29 06:53:53,117 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 360 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 1746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:53,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 596 Invalid, 1746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1727 Invalid, 3 Unknown, 0 Unchecked, 29.6s Time] [2023-11-29 06:53:53,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2023-11-29 06:53:53,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 958. [2023-11-29 06:53:53,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 821 states have (on average 1.3934226552984166) internal successors, (1144), 875 states have internal predecessors, (1144), 84 states have call successors, (84), 5 states have call predecessors, (84), 5 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-29 06:53:53,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1312 transitions. [2023-11-29 06:53:53,203 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1312 transitions. Word has length 78 [2023-11-29 06:53:53,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:53,204 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1312 transitions. [2023-11-29 06:53:53,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-29 06:53:53,204 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1312 transitions. [2023-11-29 06:53:53,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-29 06:53:53,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:53,204 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:53:53,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2023-11-29 06:53:53,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-11-29 06:53:53,405 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:53:53,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:53,405 INFO L85 PathProgramCache]: Analyzing trace with hash 2045201422, now seen corresponding path program 1 times [2023-11-29 06:53:53,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:53,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387711354] [2023-11-29 06:53:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:53,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:53,411 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:53:53,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324339126] [2023-11-29 06:53:53,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:53,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:53,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:53,419 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:53:53,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2023-11-29 06:53:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:53,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:53:53,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 06:53:53,756 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:53:53,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:53,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387711354] [2023-11-29 06:53:53,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:53:53,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324339126] [2023-11-29 06:53:53,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324339126] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:53:53,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:53:53,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:53:53,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506911523] [2023-11-29 06:53:53,869 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:53:53,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:53:53,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:53,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:53:53,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:53:53,870 INFO L87 Difference]: Start difference. First operand 958 states and 1312 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:53:55,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:55,112 INFO L93 Difference]: Finished difference Result 1187 states and 1603 transitions. [2023-11-29 06:53:55,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:53:55,112 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 84 [2023-11-29 06:53:55,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:55,119 INFO L225 Difference]: With dead ends: 1187 [2023-11-29 06:53:55,119 INFO L226 Difference]: Without dead ends: 1185 [2023-11-29 06:53:55,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:53:55,120 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 618 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:55,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 285 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:53:55,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2023-11-29 06:53:55,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1109. [2023-11-29 06:53:55,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 957 states have (on average 1.4252873563218391) internal successors, (1364), 1010 states have internal predecessors, (1364), 99 states have call successors, (99), 5 states have call predecessors, (99), 5 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) [2023-11-29 06:53:55,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1562 transitions. [2023-11-29 06:53:55,222 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1562 transitions. Word has length 84 [2023-11-29 06:53:55,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:55,223 INFO L495 AbstractCegarLoop]: Abstraction has 1109 states and 1562 transitions. [2023-11-29 06:53:55,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:53:55,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1562 transitions. [2023-11-29 06:53:55,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-29 06:53:55,223 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:55,224 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:53:55,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2023-11-29 06:53:55,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-11-29 06:53:55,424 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:53:55,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:55,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1023265279, now seen corresponding path program 1 times [2023-11-29 06:53:55,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:55,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948961999] [2023-11-29 06:53:55,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:55,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:55,430 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:53:55,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1340479768] [2023-11-29 06:53:55,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:55,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:55,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:55,431 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:53:55,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2023-11-29 06:53:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:55,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:53:55,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:55,780 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 06:53:55,780 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:53:56,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:56,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948961999] [2023-11-29 06:53:56,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:53:56,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340479768] [2023-11-29 06:53:56,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340479768] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:53:56,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:53:56,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:53:56,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957965864] [2023-11-29 06:53:56,108 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:53:56,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:53:56,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:56,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:53:56,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:53:56,109 INFO L87 Difference]: Start difference. First operand 1109 states and 1562 transitions. Second operand has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:53:56,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:56,757 INFO L93 Difference]: Finished difference Result 1122 states and 1565 transitions. [2023-11-29 06:53:56,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:53:56,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 85 [2023-11-29 06:53:56,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:56,762 INFO L225 Difference]: With dead ends: 1122 [2023-11-29 06:53:56,762 INFO L226 Difference]: Without dead ends: 1116 [2023-11-29 06:53:56,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:53:56,763 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 249 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:56,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 349 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:53:56,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2023-11-29 06:53:56,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1041. [2023-11-29 06:53:56,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 903 states have (on average 1.372093023255814) internal successors, (1239), 949 states have internal predecessors, (1239), 91 states have call successors, (91), 5 states have call predecessors, (91), 5 states have return successors, (91), 86 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-29 06:53:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1421 transitions. [2023-11-29 06:53:56,862 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1421 transitions. Word has length 85 [2023-11-29 06:53:56,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:56,863 INFO L495 AbstractCegarLoop]: Abstraction has 1041 states and 1421 transitions. [2023-11-29 06:53:56,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:53:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1421 transitions. [2023-11-29 06:53:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 06:53:56,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:56,863 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:53:56,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2023-11-29 06:53:57,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2023-11-29 06:53:57,064 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:53:57,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:57,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1582020818, now seen corresponding path program 1 times [2023-11-29 06:53:57,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:57,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684854322] [2023-11-29 06:53:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:57,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:57,071 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:53:57,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611845478] [2023-11-29 06:53:57,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:57,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:57,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:57,073 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:53:57,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2023-11-29 06:53:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:57,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:53:57,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 06:53:57,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:53:57,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:57,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684854322] [2023-11-29 06:53:57,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:53:57,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611845478] [2023-11-29 06:53:57,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611845478] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:53:57,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:53:57,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:53:57,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012013549] [2023-11-29 06:53:57,447 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:53:57,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:53:57,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:53:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:53:57,448 INFO L87 Difference]: Start difference. First operand 1041 states and 1421 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:53:58,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:58,712 INFO L93 Difference]: Finished difference Result 1189 states and 1608 transitions. [2023-11-29 06:53:58,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:53:58,712 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 88 [2023-11-29 06:53:58,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:58,717 INFO L225 Difference]: With dead ends: 1189 [2023-11-29 06:53:58,718 INFO L226 Difference]: Without dead ends: 1185 [2023-11-29 06:53:58,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:53:58,718 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 193 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:58,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 176 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:53:58,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2023-11-29 06:53:58,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1013. [2023-11-29 06:53:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 874 states have (on average 1.331807780320366) internal successors, (1164), 920 states have internal predecessors, (1164), 94 states have call successors, (94), 5 states have call predecessors, (94), 5 states have return successors, (94), 87 states have call predecessors, (94), 94 states have call successors, (94) [2023-11-29 06:53:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1352 transitions. [2023-11-29 06:53:58,821 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1352 transitions. Word has length 88 [2023-11-29 06:53:58,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:58,822 INFO L495 AbstractCegarLoop]: Abstraction has 1013 states and 1352 transitions. [2023-11-29 06:53:58,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 06:53:58,822 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1352 transitions. [2023-11-29 06:53:58,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-29 06:53:58,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:58,822 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:53:58,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2023-11-29 06:53:59,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:59,023 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:53:59,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:53:59,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1746867131, now seen corresponding path program 1 times [2023-11-29 06:53:59,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:53:59,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449856069] [2023-11-29 06:53:59,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:59,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:53:59,029 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:53:59,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580989190] [2023-11-29 06:53:59,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:53:59,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:53:59,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:53:59,030 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:53:59,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2023-11-29 06:53:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:53:59,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:53:59,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:53:59,166 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 06:53:59,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:53:59,279 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-11-29 06:53:59,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:53:59,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449856069] [2023-11-29 06:53:59,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:53:59,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580989190] [2023-11-29 06:53:59,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580989190] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:53:59,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:53:59,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 06:53:59,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315892158] [2023-11-29 06:53:59,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:53:59,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:53:59,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:53:59,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:53:59,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:53:59,280 INFO L87 Difference]: Start difference. First operand 1013 states and 1352 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 06:53:59,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:53:59,880 INFO L93 Difference]: Finished difference Result 1120 states and 1468 transitions. [2023-11-29 06:53:59,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:53:59,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 90 [2023-11-29 06:53:59,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:53:59,885 INFO L225 Difference]: With dead ends: 1120 [2023-11-29 06:53:59,885 INFO L226 Difference]: Without dead ends: 1026 [2023-11-29 06:53:59,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:53:59,886 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 72 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:53:59,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 142 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:53:59,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2023-11-29 06:53:59,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 963. [2023-11-29 06:53:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 830 states have (on average 1.3614457831325302) internal successors, (1130), 875 states have internal predecessors, (1130), 88 states have call successors, (88), 5 states have call predecessors, (88), 5 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2023-11-29 06:53:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1306 transitions. [2023-11-29 06:53:59,987 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1306 transitions. Word has length 90 [2023-11-29 06:53:59,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:53:59,987 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1306 transitions. [2023-11-29 06:53:59,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-29 06:53:59,987 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1306 transitions. [2023-11-29 06:53:59,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-29 06:53:59,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:53:59,988 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:53:59,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2023-11-29 06:54:00,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2023-11-29 06:54:00,189 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:00,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:00,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1798005189, now seen corresponding path program 1 times [2023-11-29 06:54:00,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:00,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730778988] [2023-11-29 06:54:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:00,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:00,197 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:00,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961822924] [2023-11-29 06:54:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:00,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:00,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:00,199 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:00,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2023-11-29 06:54:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:00,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:54:00,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:00,503 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-29 06:54:00,503 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:00,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:00,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730778988] [2023-11-29 06:54:00,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:00,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961822924] [2023-11-29 06:54:00,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961822924] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:00,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:00,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:54:00,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407567227] [2023-11-29 06:54:00,710 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:00,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:54:00,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:00,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:54:00,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:54:00,712 INFO L87 Difference]: Start difference. First operand 963 states and 1306 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:54:02,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:02,782 INFO L93 Difference]: Finished difference Result 1010 states and 1323 transitions. [2023-11-29 06:54:02,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:54:02,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 89 [2023-11-29 06:54:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:02,786 INFO L225 Difference]: With dead ends: 1010 [2023-11-29 06:54:02,786 INFO L226 Difference]: Without dead ends: 991 [2023-11-29 06:54:02,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:54:02,787 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 294 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:02,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 358 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 06:54:02,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2023-11-29 06:54:02,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 934. [2023-11-29 06:54:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 807 states have (on average 1.339529120198265) internal successors, (1081), 850 states have internal predecessors, (1081), 84 states have call successors, (84), 5 states have call predecessors, (84), 5 states have return successors, (84), 78 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-29 06:54:02,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1249 transitions. [2023-11-29 06:54:02,883 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1249 transitions. Word has length 89 [2023-11-29 06:54:02,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:02,883 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 1249 transitions. [2023-11-29 06:54:02,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-29 06:54:02,883 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1249 transitions. [2023-11-29 06:54:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 06:54:02,884 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:02,884 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 06:54:02,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2023-11-29 06:54:03,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:03,084 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:03,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:03,085 INFO L85 PathProgramCache]: Analyzing trace with hash -22969960, now seen corresponding path program 1 times [2023-11-29 06:54:03,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:03,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604579656] [2023-11-29 06:54:03,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:03,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:03,092 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:03,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1399096268] [2023-11-29 06:54:03,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:03,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:03,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:03,093 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:03,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2023-11-29 06:54:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:03,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:54:03,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:03,356 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:03,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:03,518 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:03,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:03,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604579656] [2023-11-29 06:54:03,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:03,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399096268] [2023-11-29 06:54:03,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399096268] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:03,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:54:03,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:54:03,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201376832] [2023-11-29 06:54:03,519 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:03,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:54:03,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:03,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:54:03,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:54:03,521 INFO L87 Difference]: Start difference. First operand 934 states and 1249 transitions. Second operand has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 8 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 06:54:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:04,296 INFO L93 Difference]: Finished difference Result 1147 states and 1474 transitions. [2023-11-29 06:54:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:54:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 8 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 98 [2023-11-29 06:54:04,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:04,302 INFO L225 Difference]: With dead ends: 1147 [2023-11-29 06:54:04,302 INFO L226 Difference]: Without dead ends: 1145 [2023-11-29 06:54:04,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:54:04,304 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 802 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:04,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 395 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:54:04,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2023-11-29 06:54:04,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 988. [2023-11-29 06:54:04,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 855 states have (on average 1.3298245614035087) internal successors, (1137), 898 states have internal predecessors, (1137), 90 states have call successors, (90), 5 states have call predecessors, (90), 5 states have return successors, (90), 84 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-29 06:54:04,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1317 transitions. [2023-11-29 06:54:04,448 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1317 transitions. Word has length 98 [2023-11-29 06:54:04,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:04,449 INFO L495 AbstractCegarLoop]: Abstraction has 988 states and 1317 transitions. [2023-11-29 06:54:04,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.428571428571427) internal successors, (122), 8 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 06:54:04,449 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1317 transitions. [2023-11-29 06:54:04,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 06:54:04,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:04,450 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-29 06:54:04,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2023-11-29 06:54:04,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:04,651 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:04,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:04,651 INFO L85 PathProgramCache]: Analyzing trace with hash -22983862, now seen corresponding path program 1 times [2023-11-29 06:54:04,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:04,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272773955] [2023-11-29 06:54:04,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:04,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:04,658 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:04,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225322854] [2023-11-29 06:54:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:04,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:04,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:04,659 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:04,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2023-11-29 06:54:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:04,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:54:04,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:04,888 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:05,071 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:05,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:05,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272773955] [2023-11-29 06:54:05,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:05,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225322854] [2023-11-29 06:54:05,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225322854] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:05,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:54:05,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 06:54:05,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219646779] [2023-11-29 06:54:05,072 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:05,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:54:05,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:05,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:54:05,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:54:05,074 INFO L87 Difference]: Start difference. First operand 988 states and 1317 transitions. Second operand has 12 states, 11 states have (on average 11.090909090909092) internal successors, (122), 12 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 06:54:05,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:05,898 INFO L93 Difference]: Finished difference Result 1520 states and 1985 transitions. [2023-11-29 06:54:05,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:54:05,898 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.090909090909092) internal successors, (122), 12 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 98 [2023-11-29 06:54:05,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:05,903 INFO L225 Difference]: With dead ends: 1520 [2023-11-29 06:54:05,903 INFO L226 Difference]: Without dead ends: 1518 [2023-11-29 06:54:05,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=330, Unknown=0, NotChecked=0, Total=506 [2023-11-29 06:54:05,904 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1474 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1474 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:05,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1474 Valid, 602 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:54:05,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2023-11-29 06:54:06,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1141. [2023-11-29 06:54:06,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 993 states have (on average 1.3403826787512587) internal successors, (1331), 1036 states have internal predecessors, (1331), 105 states have call successors, (105), 5 states have call predecessors, (105), 5 states have return successors, (105), 99 states have call predecessors, (105), 105 states have call successors, (105) [2023-11-29 06:54:06,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1541 transitions. [2023-11-29 06:54:06,048 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1541 transitions. Word has length 98 [2023-11-29 06:54:06,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:06,048 INFO L495 AbstractCegarLoop]: Abstraction has 1141 states and 1541 transitions. [2023-11-29 06:54:06,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.090909090909092) internal successors, (122), 12 states have internal predecessors, (122), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-11-29 06:54:06,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1541 transitions. [2023-11-29 06:54:06,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 06:54:06,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:06,049 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:06,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2023-11-29 06:54:06,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2023-11-29 06:54:06,250 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:06,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:06,250 INFO L85 PathProgramCache]: Analyzing trace with hash -712068644, now seen corresponding path program 1 times [2023-11-29 06:54:06,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:06,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265280857] [2023-11-29 06:54:06,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:06,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:06,258 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:06,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [440406417] [2023-11-29 06:54:06,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:06,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:06,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:06,260 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:06,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2023-11-29 06:54:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:06,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:54:06,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:06,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:06,617 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:06,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:06,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265280857] [2023-11-29 06:54:06,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:06,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440406417] [2023-11-29 06:54:06,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440406417] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:06,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:54:06,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 06:54:06,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639813660] [2023-11-29 06:54:06,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:06,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:54:06,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:06,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:54:06,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:54:06,619 INFO L87 Difference]: Start difference. First operand 1141 states and 1541 transitions. Second operand has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:54:08,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:08,220 INFO L93 Difference]: Finished difference Result 1684 states and 2198 transitions. [2023-11-29 06:54:08,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:08,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 99 [2023-11-29 06:54:08,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:08,224 INFO L225 Difference]: With dead ends: 1684 [2023-11-29 06:54:08,224 INFO L226 Difference]: Without dead ends: 1682 [2023-11-29 06:54:08,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:54:08,225 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 335 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:08,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 294 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:54:08,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2023-11-29 06:54:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1346. [2023-11-29 06:54:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1179 states have (on average 1.356234096692112) internal successors, (1599), 1222 states have internal predecessors, (1599), 124 states have call successors, (124), 5 states have call predecessors, (124), 5 states have return successors, (124), 118 states have call predecessors, (124), 124 states have call successors, (124) [2023-11-29 06:54:08,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1847 transitions. [2023-11-29 06:54:08,416 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1847 transitions. Word has length 99 [2023-11-29 06:54:08,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:08,417 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1847 transitions. [2023-11-29 06:54:08,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:54:08,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1847 transitions. [2023-11-29 06:54:08,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 06:54:08,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:08,418 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:08,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2023-11-29 06:54:08,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2023-11-29 06:54:08,619 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:08,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:08,619 INFO L85 PathProgramCache]: Analyzing trace with hash -2105962864, now seen corresponding path program 1 times [2023-11-29 06:54:08,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:08,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845008267] [2023-11-29 06:54:08,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:08,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:08,627 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:08,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [651749544] [2023-11-29 06:54:08,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:08,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:08,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:08,628 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:08,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2023-11-29 06:54:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:08,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:54:08,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:08,874 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:08,874 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:08,991 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:08,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:08,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845008267] [2023-11-29 06:54:08,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:08,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651749544] [2023-11-29 06:54:08,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651749544] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:08,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:54:08,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-29 06:54:08,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090823147] [2023-11-29 06:54:08,992 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:08,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:54:08,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:08,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:54:08,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:54:08,993 INFO L87 Difference]: Start difference. First operand 1346 states and 1847 transitions. Second operand has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:54:10,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:10,519 INFO L93 Difference]: Finished difference Result 1882 states and 2496 transitions. [2023-11-29 06:54:10,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:10,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 101 [2023-11-29 06:54:10,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:10,524 INFO L225 Difference]: With dead ends: 1882 [2023-11-29 06:54:10,524 INFO L226 Difference]: Without dead ends: 1880 [2023-11-29 06:54:10,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:54:10,525 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 406 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:10,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 312 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:54:10,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2023-11-29 06:54:10,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1572. [2023-11-29 06:54:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1384 states have (on average 1.3634393063583814) internal successors, (1887), 1427 states have internal predecessors, (1887), 145 states have call successors, (145), 5 states have call predecessors, (145), 5 states have return successors, (145), 139 states have call predecessors, (145), 145 states have call successors, (145) [2023-11-29 06:54:10,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2177 transitions. [2023-11-29 06:54:10,717 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2177 transitions. Word has length 101 [2023-11-29 06:54:10,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:10,718 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 2177 transitions. [2023-11-29 06:54:10,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 25.4) internal successors, (127), 6 states have internal predecessors, (127), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:54:10,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2177 transitions. [2023-11-29 06:54:10,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 06:54:10,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:10,719 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:10,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2023-11-29 06:54:10,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2023-11-29 06:54:10,919 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:10,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:10,920 INFO L85 PathProgramCache]: Analyzing trace with hash -259811330, now seen corresponding path program 1 times [2023-11-29 06:54:10,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:10,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189230722] [2023-11-29 06:54:10,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:10,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:10,927 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:10,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094285083] [2023-11-29 06:54:10,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:10,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:10,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:10,928 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:10,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2023-11-29 06:54:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:10,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 06:54:10,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:11,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:11,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:11,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189230722] [2023-11-29 06:54:11,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:11,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094285083] [2023-11-29 06:54:11,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094285083] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:11,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:11,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:54:11,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31092521] [2023-11-29 06:54:11,476 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:11,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:54:11,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:11,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:54:11,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:54:11,477 INFO L87 Difference]: Start difference. First operand 1572 states and 2177 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 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 06:54:12,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:12,827 INFO L93 Difference]: Finished difference Result 1778 states and 2403 transitions. [2023-11-29 06:54:12,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:54:12,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 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 107 [2023-11-29 06:54:12,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:12,831 INFO L225 Difference]: With dead ends: 1778 [2023-11-29 06:54:12,831 INFO L226 Difference]: Without dead ends: 1774 [2023-11-29 06:54:12,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:54:12,832 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 337 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:12,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 274 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:54:12,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2023-11-29 06:54:13,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1568. [2023-11-29 06:54:13,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1384 states have (on average 1.31864161849711) internal successors, (1825), 1423 states have internal predecessors, (1825), 145 states have call successors, (145), 5 states have call predecessors, (145), 5 states have return successors, (145), 139 states have call predecessors, (145), 145 states have call successors, (145) [2023-11-29 06:54:13,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2115 transitions. [2023-11-29 06:54:13,024 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2115 transitions. Word has length 107 [2023-11-29 06:54:13,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:13,024 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2115 transitions. [2023-11-29 06:54:13,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 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 06:54:13,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2115 transitions. [2023-11-29 06:54:13,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-29 06:54:13,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:13,025 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:13,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2023-11-29 06:54:13,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2023-11-29 06:54:13,226 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:13,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:13,226 INFO L85 PathProgramCache]: Analyzing trace with hash 883635391, now seen corresponding path program 1 times [2023-11-29 06:54:13,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:13,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887384601] [2023-11-29 06:54:13,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:13,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:13,234 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:13,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020939161] [2023-11-29 06:54:13,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:13,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:13,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:13,235 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:13,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2023-11-29 06:54:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:13,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:54:13,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:13,424 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 06:54:13,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:13,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887384601] [2023-11-29 06:54:13,544 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020939161] [2023-11-29 06:54:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020939161] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:13,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:54:13,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2023-11-29 06:54:13,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806778423] [2023-11-29 06:54:13,545 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:13,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:54:13,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:13,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:54:13,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:54:13,546 INFO L87 Difference]: Start difference. First operand 1568 states and 2115 transitions. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 06:54:13,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:13,945 INFO L93 Difference]: Finished difference Result 2014 states and 2649 transitions. [2023-11-29 06:54:13,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:54:13,945 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 107 [2023-11-29 06:54:13,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:13,948 INFO L225 Difference]: With dead ends: 2014 [2023-11-29 06:54:13,948 INFO L226 Difference]: Without dead ends: 1800 [2023-11-29 06:54:13,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 200 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=271, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:54:13,949 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 178 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:13,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 769 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:54:13,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2023-11-29 06:54:14,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1715. [2023-11-29 06:54:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1526 states have (on average 1.2948885976408913) internal successors, (1976), 1564 states have internal predecessors, (1976), 149 states have call successors, (149), 6 states have call predecessors, (149), 6 states have return successors, (149), 144 states have call predecessors, (149), 149 states have call successors, (149) [2023-11-29 06:54:14,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2274 transitions. [2023-11-29 06:54:14,163 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2274 transitions. Word has length 107 [2023-11-29 06:54:14,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:14,164 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2274 transitions. [2023-11-29 06:54:14,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 5 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-11-29 06:54:14,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2274 transitions. [2023-11-29 06:54:14,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 06:54:14,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:14,165 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:14,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2023-11-29 06:54:14,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2023-11-29 06:54:14,365 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:14,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:14,366 INFO L85 PathProgramCache]: Analyzing trace with hash 535783415, now seen corresponding path program 1 times [2023-11-29 06:54:14,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:14,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493784871] [2023-11-29 06:54:14,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:14,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:14,372 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:14,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [266541933] [2023-11-29 06:54:14,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:14,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:14,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:14,374 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:14,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2023-11-29 06:54:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:14,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:54:14,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:14,862 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:14,862 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:14,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:14,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493784871] [2023-11-29 06:54:14,963 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:14,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266541933] [2023-11-29 06:54:14,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266541933] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:14,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:14,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:54:14,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265871921] [2023-11-29 06:54:14,964 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:14,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:54:14,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:14,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:54:14,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:54:14,965 INFO L87 Difference]: Start difference. First operand 1715 states and 2274 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 06:54:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:16,034 INFO L93 Difference]: Finished difference Result 1753 states and 2302 transitions. [2023-11-29 06:54:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:54:16,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 108 [2023-11-29 06:54:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:16,037 INFO L225 Difference]: With dead ends: 1753 [2023-11-29 06:54:16,038 INFO L226 Difference]: Without dead ends: 1751 [2023-11-29 06:54:16,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:54:16,038 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 147 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:16,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 240 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:54:16,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2023-11-29 06:54:16,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1723. [2023-11-29 06:54:16,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1533 states have (on average 1.294194390084801) internal successors, (1984), 1571 states have internal predecessors, (1984), 150 states have call successors, (150), 6 states have call predecessors, (150), 6 states have return successors, (150), 145 states have call predecessors, (150), 150 states have call successors, (150) [2023-11-29 06:54:16,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2284 transitions. [2023-11-29 06:54:16,259 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2284 transitions. Word has length 108 [2023-11-29 06:54:16,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:16,260 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 2284 transitions. [2023-11-29 06:54:16,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 06:54:16,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2284 transitions. [2023-11-29 06:54:16,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-29 06:54:16,260 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:16,261 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:16,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2023-11-29 06:54:16,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2023-11-29 06:54:16,461 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:16,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:16,461 INFO L85 PathProgramCache]: Analyzing trace with hash 113803731, now seen corresponding path program 2 times [2023-11-29 06:54:16,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:16,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556921090] [2023-11-29 06:54:16,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:16,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:16,468 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:16,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1341180599] [2023-11-29 06:54:16,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:54:16,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:16,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:16,469 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:16,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2023-11-29 06:54:16,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:54:16,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:54:16,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:54:16,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:16,932 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:16,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:17,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:17,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556921090] [2023-11-29 06:54:17,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:17,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341180599] [2023-11-29 06:54:17,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341180599] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:17,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:17,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:54:17,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420237150] [2023-11-29 06:54:17,037 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:17,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:54:17,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:17,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:54:17,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:54:17,038 INFO L87 Difference]: Start difference. First operand 1723 states and 2284 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 06:54:18,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:18,058 INFO L93 Difference]: Finished difference Result 1761 states and 2303 transitions. [2023-11-29 06:54:18,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:18,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 108 [2023-11-29 06:54:18,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:18,061 INFO L225 Difference]: With dead ends: 1761 [2023-11-29 06:54:18,061 INFO L226 Difference]: Without dead ends: 1759 [2023-11-29 06:54:18,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:54:18,062 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 216 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:18,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 239 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:54:18,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1759 states. [2023-11-29 06:54:18,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1759 to 1719. [2023-11-29 06:54:18,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1719 states, 1530 states have (on average 1.2934640522875818) internal successors, (1979), 1567 states have internal predecessors, (1979), 149 states have call successors, (149), 6 states have call predecessors, (149), 6 states have return successors, (149), 145 states have call predecessors, (149), 149 states have call successors, (149) [2023-11-29 06:54:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2277 transitions. [2023-11-29 06:54:18,262 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2277 transitions. Word has length 108 [2023-11-29 06:54:18,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:18,263 INFO L495 AbstractCegarLoop]: Abstraction has 1719 states and 2277 transitions. [2023-11-29 06:54:18,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 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 06:54:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2277 transitions. [2023-11-29 06:54:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 06:54:18,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:18,264 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:18,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2023-11-29 06:54:18,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:18,464 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:18,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:18,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1188224766, now seen corresponding path program 1 times [2023-11-29 06:54:18,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:18,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9656137] [2023-11-29 06:54:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:18,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:18,473 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:18,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104477837] [2023-11-29 06:54:18,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:18,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:18,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:18,474 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:18,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2023-11-29 06:54:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:18,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:54:18,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:18,869 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 06:54:18,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:54:18,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:18,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9656137] [2023-11-29 06:54:18,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:18,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104477837] [2023-11-29 06:54:18,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104477837] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:54:18,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:54:18,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:54:18,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381342334] [2023-11-29 06:54:18,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:54:18,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:54:18,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:18,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:54:18,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:54:18,872 INFO L87 Difference]: Start difference. First operand 1719 states and 2277 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 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 06:54:19,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:19,611 INFO L93 Difference]: Finished difference Result 1823 states and 2389 transitions. [2023-11-29 06:54:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:54:19,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 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 110 [2023-11-29 06:54:19,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:19,615 INFO L225 Difference]: With dead ends: 1823 [2023-11-29 06:54:19,616 INFO L226 Difference]: Without dead ends: 1822 [2023-11-29 06:54:19,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:54:19,617 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 124 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:19,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 104 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:54:19,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2023-11-29 06:54:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1766. [2023-11-29 06:54:19,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1572 states have (on average 1.2830788804071247) internal successors, (2017), 1609 states have internal predecessors, (2017), 154 states have call successors, (154), 6 states have call predecessors, (154), 6 states have return successors, (154), 150 states have call predecessors, (154), 154 states have call successors, (154) [2023-11-29 06:54:19,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2325 transitions. [2023-11-29 06:54:19,869 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2325 transitions. Word has length 110 [2023-11-29 06:54:19,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:19,869 INFO L495 AbstractCegarLoop]: Abstraction has 1766 states and 2325 transitions. [2023-11-29 06:54:19,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 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 06:54:19,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2325 transitions. [2023-11-29 06:54:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 06:54:19,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:19,870 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:19,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2023-11-29 06:54:20,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:20,071 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:20,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:20,071 INFO L85 PathProgramCache]: Analyzing trace with hash -508211943, now seen corresponding path program 1 times [2023-11-29 06:54:20,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:20,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867254794] [2023-11-29 06:54:20,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:20,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:20,078 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:20,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718814309] [2023-11-29 06:54:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:20,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:20,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:20,080 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:20,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2023-11-29 06:54:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:20,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:54:20,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:20,634 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:20,634 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:21,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:21,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867254794] [2023-11-29 06:54:21,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:21,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718814309] [2023-11-29 06:54:21,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718814309] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:21,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:21,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 06:54:21,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65772638] [2023-11-29 06:54:21,090 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:21,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:54:21,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:21,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:54:21,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:54:21,092 INFO L87 Difference]: Start difference. First operand 1766 states and 2325 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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 06:54:22,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:22,107 INFO L93 Difference]: Finished difference Result 1798 states and 2348 transitions. [2023-11-29 06:54:22,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:54:22,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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 110 [2023-11-29 06:54:22,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:22,110 INFO L225 Difference]: With dead ends: 1798 [2023-11-29 06:54:22,110 INFO L226 Difference]: Without dead ends: 1796 [2023-11-29 06:54:22,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:54:22,111 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 84 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:22,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 271 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:54:22,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2023-11-29 06:54:22,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1769. [2023-11-29 06:54:22,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1574 states have (on average 1.2820838627700126) internal successors, (2018), 1611 states have internal predecessors, (2018), 155 states have call successors, (155), 6 states have call predecessors, (155), 6 states have return successors, (155), 151 states have call predecessors, (155), 155 states have call successors, (155) [2023-11-29 06:54:22,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2328 transitions. [2023-11-29 06:54:22,343 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2328 transitions. Word has length 110 [2023-11-29 06:54:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:22,344 INFO L495 AbstractCegarLoop]: Abstraction has 1769 states and 2328 transitions. [2023-11-29 06:54:22,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 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 06:54:22,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2328 transitions. [2023-11-29 06:54:22,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 06:54:22,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:22,345 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:22,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2023-11-29 06:54:22,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:22,545 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:22,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:22,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1991204853, now seen corresponding path program 2 times [2023-11-29 06:54:22,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:22,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342973055] [2023-11-29 06:54:22,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:22,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:22,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:22,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448986303] [2023-11-29 06:54:22,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:54:22,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:22,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:22,554 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:22,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2023-11-29 06:54:22,616 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:54:22,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:54:22,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:54:22,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:23,043 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:24,092 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:24,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:24,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342973055] [2023-11-29 06:54:24,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:24,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448986303] [2023-11-29 06:54:24,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448986303] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:24,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:54:24,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-29 06:54:24,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650392955] [2023-11-29 06:54:24,094 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:24,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:54:24,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:24,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:54:24,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:54:24,095 INFO L87 Difference]: Start difference. First operand 1769 states and 2328 transitions. Second operand has 9 states, 8 states have (on average 18.125) internal successors, (145), 9 states have internal predecessors, (145), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:54:27,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:27,611 INFO L93 Difference]: Finished difference Result 1805 states and 2353 transitions. [2023-11-29 06:54:27,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:54:27,612 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.125) internal successors, (145), 9 states have internal predecessors, (145), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 110 [2023-11-29 06:54:27,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:27,616 INFO L225 Difference]: With dead ends: 1805 [2023-11-29 06:54:27,616 INFO L226 Difference]: Without dead ends: 1803 [2023-11-29 06:54:27,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:54:27,617 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 262 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:27,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 444 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-29 06:54:27,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2023-11-29 06:54:27,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1770. [2023-11-29 06:54:27,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1575 states have (on average 1.28) internal successors, (2016), 1612 states have internal predecessors, (2016), 155 states have call successors, (155), 6 states have call predecessors, (155), 6 states have return successors, (155), 151 states have call predecessors, (155), 155 states have call successors, (155) [2023-11-29 06:54:27,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2326 transitions. [2023-11-29 06:54:27,922 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2326 transitions. Word has length 110 [2023-11-29 06:54:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:27,922 INFO L495 AbstractCegarLoop]: Abstraction has 1770 states and 2326 transitions. [2023-11-29 06:54:27,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.125) internal successors, (145), 9 states have internal predecessors, (145), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:54:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2326 transitions. [2023-11-29 06:54:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 06:54:27,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:27,923 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:27,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2023-11-29 06:54:28,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2023-11-29 06:54:28,124 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:28,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:28,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1425299010, now seen corresponding path program 1 times [2023-11-29 06:54:28,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:28,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209594707] [2023-11-29 06:54:28,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:28,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:28,130 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:28,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357541508] [2023-11-29 06:54:28,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:28,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:28,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:28,131 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:28,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2023-11-29 06:54:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:28,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:54:28,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:28,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:28,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:28,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209594707] [2023-11-29 06:54:28,900 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:28,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357541508] [2023-11-29 06:54:28,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357541508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:28,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:28,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:54:28,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524121860] [2023-11-29 06:54:28,901 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:28,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:54:28,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:28,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:54:28,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:54:28,902 INFO L87 Difference]: Start difference. First operand 1770 states and 2326 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 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 06:54:30,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:30,632 INFO L93 Difference]: Finished difference Result 1855 states and 2400 transitions. [2023-11-29 06:54:30,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:54:30,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 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 111 [2023-11-29 06:54:30,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:30,636 INFO L225 Difference]: With dead ends: 1855 [2023-11-29 06:54:30,636 INFO L226 Difference]: Without dead ends: 1851 [2023-11-29 06:54:30,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:54:30,637 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 301 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:30,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 289 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:54:30,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2023-11-29 06:54:30,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1784. [2023-11-29 06:54:30,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1586 states have (on average 1.2711223203026483) internal successors, (2016), 1624 states have internal predecessors, (2016), 158 states have call successors, (158), 6 states have call predecessors, (158), 6 states have return successors, (158), 153 states have call predecessors, (158), 158 states have call successors, (158) [2023-11-29 06:54:30,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2332 transitions. [2023-11-29 06:54:30,878 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2332 transitions. Word has length 111 [2023-11-29 06:54:30,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:30,878 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 2332 transitions. [2023-11-29 06:54:30,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 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 06:54:30,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2332 transitions. [2023-11-29 06:54:30,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 06:54:30,879 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:30,879 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:30,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2023-11-29 06:54:31,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2023-11-29 06:54:31,080 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:31,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:31,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1597808358, now seen corresponding path program 2 times [2023-11-29 06:54:31,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:31,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16691383] [2023-11-29 06:54:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:31,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:31,087 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:31,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437856537] [2023-11-29 06:54:31,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:54:31,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:31,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:31,089 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:31,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2023-11-29 06:54:31,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:54:31,149 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:54:31,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:54:31,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:31,584 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:31,584 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:31,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:31,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16691383] [2023-11-29 06:54:31,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:31,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437856537] [2023-11-29 06:54:31,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437856537] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:31,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:31,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:54:31,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762360559] [2023-11-29 06:54:31,869 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:31,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:54:31,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:31,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:54:31,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:54:31,870 INFO L87 Difference]: Start difference. First operand 1784 states and 2332 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 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 06:54:33,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:33,857 INFO L93 Difference]: Finished difference Result 1862 states and 2396 transitions. [2023-11-29 06:54:33,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:54:33,857 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 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 111 [2023-11-29 06:54:33,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:33,861 INFO L225 Difference]: With dead ends: 1862 [2023-11-29 06:54:33,862 INFO L226 Difference]: Without dead ends: 1858 [2023-11-29 06:54:33,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:54:33,862 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 230 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:33,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 283 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 06:54:33,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2023-11-29 06:54:34,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1769. [2023-11-29 06:54:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1575 states have (on average 1.2577777777777779) internal successors, (1981), 1611 states have internal predecessors, (1981), 155 states have call successors, (155), 6 states have call predecessors, (155), 6 states have return successors, (155), 151 states have call predecessors, (155), 155 states have call successors, (155) [2023-11-29 06:54:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2291 transitions. [2023-11-29 06:54:34,099 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2291 transitions. Word has length 111 [2023-11-29 06:54:34,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:34,099 INFO L495 AbstractCegarLoop]: Abstraction has 1769 states and 2291 transitions. [2023-11-29 06:54:34,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 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 06:54:34,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2291 transitions. [2023-11-29 06:54:34,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:54:34,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:34,100 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:34,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2023-11-29 06:54:34,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:34,301 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:34,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1234596411, now seen corresponding path program 1 times [2023-11-29 06:54:34,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:34,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112158120] [2023-11-29 06:54:34,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:34,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:34,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:34,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [801436508] [2023-11-29 06:54:34,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:34,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:34,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:34,308 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:34,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2023-11-29 06:54:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:34,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:54:34,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:35,090 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:35,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:35,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:35,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112158120] [2023-11-29 06:54:35,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:35,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801436508] [2023-11-29 06:54:35,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801436508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:35,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:35,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:54:35,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803773082] [2023-11-29 06:54:35,485 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:35,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:54:35,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:35,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:54:35,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:54:35,486 INFO L87 Difference]: Start difference. First operand 1769 states and 2291 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 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 06:54:36,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:36,967 INFO L93 Difference]: Finished difference Result 1859 states and 2371 transitions. [2023-11-29 06:54:36,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:36,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 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 112 [2023-11-29 06:54:36,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:36,971 INFO L225 Difference]: With dead ends: 1859 [2023-11-29 06:54:36,971 INFO L226 Difference]: Without dead ends: 1841 [2023-11-29 06:54:36,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:54:36,972 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 352 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:36,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 256 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:54:36,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2023-11-29 06:54:37,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1747. [2023-11-29 06:54:37,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1747 states, 1553 states have (on average 1.2491951062459756) internal successors, (1940), 1593 states have internal predecessors, (1940), 155 states have call successors, (155), 6 states have call predecessors, (155), 6 states have return successors, (155), 147 states have call predecessors, (155), 155 states have call successors, (155) [2023-11-29 06:54:37,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 2250 transitions. [2023-11-29 06:54:37,208 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 2250 transitions. Word has length 112 [2023-11-29 06:54:37,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:37,209 INFO L495 AbstractCegarLoop]: Abstraction has 1747 states and 2250 transitions. [2023-11-29 06:54:37,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 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 06:54:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 2250 transitions. [2023-11-29 06:54:37,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 06:54:37,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:37,209 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:37,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2023-11-29 06:54:37,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:37,410 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:37,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:37,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2007548393, now seen corresponding path program 2 times [2023-11-29 06:54:37,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:37,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775859190] [2023-11-29 06:54:37,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:37,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:37,417 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:37,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967500396] [2023-11-29 06:54:37,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:54:37,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:37,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:37,418 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:37,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2023-11-29 06:54:37,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:54:37,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:54:37,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 06:54:37,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:38,167 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-29 06:54:38,167 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:38,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:38,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775859190] [2023-11-29 06:54:38,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:38,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967500396] [2023-11-29 06:54:38,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967500396] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:38,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:38,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:54:38,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109402781] [2023-11-29 06:54:38,626 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:38,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:54:38,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:38,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:54:38,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:54:38,627 INFO L87 Difference]: Start difference. First operand 1747 states and 2250 transitions. Second operand has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 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 06:54:40,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:40,098 INFO L93 Difference]: Finished difference Result 1807 states and 2297 transitions. [2023-11-29 06:54:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:40,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 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 112 [2023-11-29 06:54:40,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:40,101 INFO L225 Difference]: With dead ends: 1807 [2023-11-29 06:54:40,101 INFO L226 Difference]: Without dead ends: 1756 [2023-11-29 06:54:40,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:54:40,101 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 281 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:40,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 341 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:54:40,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2023-11-29 06:54:40,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1692. [2023-11-29 06:54:40,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1507 states have (on average 1.2335766423357664) internal successors, (1859), 1544 states have internal predecessors, (1859), 149 states have call successors, (149), 6 states have call predecessors, (149), 6 states have return successors, (149), 141 states have call predecessors, (149), 149 states have call successors, (149) [2023-11-29 06:54:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2157 transitions. [2023-11-29 06:54:40,357 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2157 transitions. Word has length 112 [2023-11-29 06:54:40,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:40,357 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 2157 transitions. [2023-11-29 06:54:40,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.0) internal successors, (78), 7 states have internal predecessors, (78), 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 06:54:40,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2157 transitions. [2023-11-29 06:54:40,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 06:54:40,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:40,358 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:40,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2023-11-29 06:54:40,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-11-29 06:54:40,559 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:40,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:40,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1937164103, now seen corresponding path program 2 times [2023-11-29 06:54:40,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:40,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975582375] [2023-11-29 06:54:40,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:40,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:40,565 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:40,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636497782] [2023-11-29 06:54:40,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:54:40,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:40,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:40,566 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:40,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2023-11-29 06:54:40,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:54:40,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:54:40,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:54:40,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:41,093 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 3 proven. 57 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 06:54:41,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:41,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:41,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975582375] [2023-11-29 06:54:41,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:41,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636497782] [2023-11-29 06:54:41,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636497782] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:41,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:41,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:54:41,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241752515] [2023-11-29 06:54:41,188 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:41,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:54:41,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:41,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:54:41,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:54:41,189 INFO L87 Difference]: Start difference. First operand 1692 states and 2157 transitions. Second operand has 9 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:54:42,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:42,459 INFO L93 Difference]: Finished difference Result 2004 states and 2521 transitions. [2023-11-29 06:54:42,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:54:42,460 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 118 [2023-11-29 06:54:42,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:42,462 INFO L225 Difference]: With dead ends: 2004 [2023-11-29 06:54:42,462 INFO L226 Difference]: Without dead ends: 2002 [2023-11-29 06:54:42,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:54:42,462 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 422 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:42,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 414 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:54:42,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2023-11-29 06:54:42,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1745. [2023-11-29 06:54:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1555 states have (on average 1.2340836012861736) internal successors, (1919), 1591 states have internal predecessors, (1919), 154 states have call successors, (154), 6 states have call predecessors, (154), 6 states have return successors, (154), 147 states have call predecessors, (154), 154 states have call successors, (154) [2023-11-29 06:54:42,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2227 transitions. [2023-11-29 06:54:42,797 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2227 transitions. Word has length 118 [2023-11-29 06:54:42,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:42,797 INFO L495 AbstractCegarLoop]: Abstraction has 1745 states and 2227 transitions. [2023-11-29 06:54:42,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.714285714285714) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:54:42,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2227 transitions. [2023-11-29 06:54:42,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:54:42,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:42,798 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:42,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2023-11-29 06:54:42,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-11-29 06:54:42,998 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:42,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:42,999 INFO L85 PathProgramCache]: Analyzing trace with hash 23152730, now seen corresponding path program 1 times [2023-11-29 06:54:42,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:42,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73665831] [2023-11-29 06:54:42,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:42,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:43,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:43,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1583157743] [2023-11-29 06:54:43,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:43,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:43,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:43,006 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:43,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2023-11-29 06:54:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:43,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:54:43,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 06:54:43,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:43,271 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2023-11-29 06:54:43,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:43,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73665831] [2023-11-29 06:54:43,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:43,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583157743] [2023-11-29 06:54:43,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583157743] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:54:43,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:54:43,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-29 06:54:43,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665992890] [2023-11-29 06:54:43,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:43,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:54:43,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:43,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:54:43,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:54:43,274 INFO L87 Difference]: Start difference. First operand 1745 states and 2227 transitions. Second operand has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 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 06:54:44,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:44,494 INFO L93 Difference]: Finished difference Result 1752 states and 2229 transitions. [2023-11-29 06:54:44,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:54:44,495 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 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 121 [2023-11-29 06:54:44,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:44,497 INFO L225 Difference]: With dead ends: 1752 [2023-11-29 06:54:44,497 INFO L226 Difference]: Without dead ends: 1694 [2023-11-29 06:54:44,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:54:44,498 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 51 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:44,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 184 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:54:44,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2023-11-29 06:54:44,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1689. [2023-11-29 06:54:44,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1507 states have (on average 1.2382216323822164) internal successors, (1866), 1540 states have internal predecessors, (1866), 146 states have call successors, (146), 6 states have call predecessors, (146), 6 states have return successors, (146), 142 states have call predecessors, (146), 146 states have call successors, (146) [2023-11-29 06:54:44,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2158 transitions. [2023-11-29 06:54:44,737 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2158 transitions. Word has length 121 [2023-11-29 06:54:44,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:44,738 INFO L495 AbstractCegarLoop]: Abstraction has 1689 states and 2158 transitions. [2023-11-29 06:54:44,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 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 06:54:44,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2158 transitions. [2023-11-29 06:54:44,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 06:54:44,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:44,738 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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 06:54:44,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2023-11-29 06:54:44,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2023-11-29 06:54:44,939 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:44,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:44,939 INFO L85 PathProgramCache]: Analyzing trace with hash 137011819, now seen corresponding path program 1 times [2023-11-29 06:54:44,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:44,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122905640] [2023-11-29 06:54:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:44,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:44,950 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:44,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487771097] [2023-11-29 06:54:44,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:44,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:44,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:44,951 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:44,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2023-11-29 06:54:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:45,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:54:45,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:45,711 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 06:54:45,711 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:45,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:45,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122905640] [2023-11-29 06:54:45,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:45,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487771097] [2023-11-29 06:54:45,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487771097] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:45,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:45,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:54:45,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264818052] [2023-11-29 06:54:45,973 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:45,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:54:45,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:45,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:54:45,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:54:45,974 INFO L87 Difference]: Start difference. First operand 1689 states and 2158 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:54:47,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:47,102 INFO L93 Difference]: Finished difference Result 1795 states and 2273 transitions. [2023-11-29 06:54:47,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:54:47,103 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 121 [2023-11-29 06:54:47,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:47,105 INFO L225 Difference]: With dead ends: 1795 [2023-11-29 06:54:47,105 INFO L226 Difference]: Without dead ends: 1794 [2023-11-29 06:54:47,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:54:47,106 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 171 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:47,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 453 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:54:47,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2023-11-29 06:54:47,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1689. [2023-11-29 06:54:47,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1507 states have (on average 1.2375580623755806) internal successors, (1865), 1540 states have internal predecessors, (1865), 146 states have call successors, (146), 6 states have call predecessors, (146), 6 states have return successors, (146), 142 states have call predecessors, (146), 146 states have call successors, (146) [2023-11-29 06:54:47,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2157 transitions. [2023-11-29 06:54:47,390 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2157 transitions. Word has length 121 [2023-11-29 06:54:47,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:47,390 INFO L495 AbstractCegarLoop]: Abstraction has 1689 states and 2157 transitions. [2023-11-29 06:54:47,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 10 states have internal predecessors, (82), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:54:47,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2157 transitions. [2023-11-29 06:54:47,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 06:54:47,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:47,391 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2023-11-29 06:54:47,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2023-11-29 06:54:47,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:47,592 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:47,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:47,592 INFO L85 PathProgramCache]: Analyzing trace with hash -47600835, now seen corresponding path program 1 times [2023-11-29 06:54:47,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:47,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218528956] [2023-11-29 06:54:47,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:47,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:47,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:47,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230052718] [2023-11-29 06:54:47,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:47,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:47,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:47,600 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:47,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2023-11-29 06:54:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:54:47,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:54:47,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:48,162 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 26 proven. 33 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2023-11-29 06:54:48,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:48,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:48,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218528956] [2023-11-29 06:54:48,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:48,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230052718] [2023-11-29 06:54:48,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230052718] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:48,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:48,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:54:48,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016356440] [2023-11-29 06:54:48,225 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:48,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:54:48,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:54:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:54:48,226 INFO L87 Difference]: Start difference. First operand 1689 states and 2157 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:54:49,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:54:49,720 INFO L93 Difference]: Finished difference Result 1802 states and 2251 transitions. [2023-11-29 06:54:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 06:54:49,720 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 122 [2023-11-29 06:54:49,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:54:49,723 INFO L225 Difference]: With dead ends: 1802 [2023-11-29 06:54:49,723 INFO L226 Difference]: Without dead ends: 1781 [2023-11-29 06:54:49,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2023-11-29 06:54:49,724 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 434 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:54:49,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 428 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:54:49,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2023-11-29 06:54:49,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1594. [2023-11-29 06:54:49,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1426 states have (on average 1.2230014025245441) internal successors, (1744), 1456 states have internal predecessors, (1744), 133 states have call successors, (133), 6 states have call predecessors, (133), 6 states have return successors, (133), 131 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-29 06:54:49,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 2010 transitions. [2023-11-29 06:54:49,931 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 2010 transitions. Word has length 122 [2023-11-29 06:54:49,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:54:49,931 INFO L495 AbstractCegarLoop]: Abstraction has 1594 states and 2010 transitions. [2023-11-29 06:54:49,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-29 06:54:49,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 2010 transitions. [2023-11-29 06:54:49,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-29 06:54:49,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:54:49,932 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:54:49,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2023-11-29 06:54:50,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:50,132 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:54:50,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:54:50,133 INFO L85 PathProgramCache]: Analyzing trace with hash -979467738, now seen corresponding path program 2 times [2023-11-29 06:54:50,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:54:50,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609658385] [2023-11-29 06:54:50,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:54:50,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:54:50,143 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:54:50,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [840513024] [2023-11-29 06:54:50,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:54:50,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:54:50,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:54:50,145 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:54:50,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2023-11-29 06:54:50,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:54:50,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:54:50,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:54:50,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:54:52,131 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-11-29 06:54:52,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:54:52,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:54:52,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609658385] [2023-11-29 06:54:52,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:54:52,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840513024] [2023-11-29 06:54:52,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840513024] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:54:52,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:54:52,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-29 06:54:52,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716903050] [2023-11-29 06:54:52,247 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:54:52,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:54:52,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:54:52,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:54:52,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:54:52,248 INFO L87 Difference]: Start difference. First operand 1594 states and 2010 transitions. Second operand has 12 states, 10 states have (on average 9.1) internal successors, (91), 11 states have internal predecessors, (91), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 06:54:56,583 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 06:55:00,987 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 06:55:05,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:05,276 INFO L93 Difference]: Finished difference Result 1967 states and 2460 transitions. [2023-11-29 06:55:05,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:55:05,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.1) internal successors, (91), 11 states have internal predecessors, (91), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) Word has length 129 [2023-11-29 06:55:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:05,278 INFO L225 Difference]: With dead ends: 1967 [2023-11-29 06:55:05,278 INFO L226 Difference]: Without dead ends: 1965 [2023-11-29 06:55:05,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:55:05,279 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 430 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:05,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 741 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 933 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2023-11-29 06:55:05,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2023-11-29 06:55:05,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1594. [2023-11-29 06:55:05,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1426 states have (on average 1.220196353436185) internal successors, (1740), 1456 states have internal predecessors, (1740), 133 states have call successors, (133), 6 states have call predecessors, (133), 6 states have return successors, (133), 131 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-29 06:55:05,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 2006 transitions. [2023-11-29 06:55:05,509 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 2006 transitions. Word has length 129 [2023-11-29 06:55:05,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:05,509 INFO L495 AbstractCegarLoop]: Abstraction has 1594 states and 2006 transitions. [2023-11-29 06:55:05,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.1) internal successors, (91), 11 states have internal predecessors, (91), 6 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-29 06:55:05,510 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 2006 transitions. [2023-11-29 06:55:05,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 06:55:05,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:05,511 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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 06:55:05,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2023-11-29 06:55:05,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:05,711 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:05,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:05,712 INFO L85 PathProgramCache]: Analyzing trace with hash -968333735, now seen corresponding path program 1 times [2023-11-29 06:55:05,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:05,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781947081] [2023-11-29 06:55:05,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:05,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:05,720 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:05,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041086702] [2023-11-29 06:55:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:05,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:05,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:05,722 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:05,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2023-11-29 06:55:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:05,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 06:55:05,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:06,435 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-11-29 06:55:06,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:06,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:06,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781947081] [2023-11-29 06:55:06,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:06,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041086702] [2023-11-29 06:55:06,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041086702] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:06,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:06,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-29 06:55:06,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795344673] [2023-11-29 06:55:06,842 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:06,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 06:55:06,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:06,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 06:55:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:55:06,843 INFO L87 Difference]: Start difference. First operand 1594 states and 2006 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:55:08,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:08,408 INFO L93 Difference]: Finished difference Result 1683 states and 2103 transitions. [2023-11-29 06:55:08,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:55:08,409 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 132 [2023-11-29 06:55:08,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:08,410 INFO L225 Difference]: With dead ends: 1683 [2023-11-29 06:55:08,410 INFO L226 Difference]: Without dead ends: 1682 [2023-11-29 06:55:08,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:55:08,411 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 164 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:08,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 473 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 06:55:08,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2023-11-29 06:55:08,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1594. [2023-11-29 06:55:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1594 states, 1426 states have (on average 1.2194950911640954) internal successors, (1739), 1456 states have internal predecessors, (1739), 133 states have call successors, (133), 6 states have call predecessors, (133), 6 states have return successors, (133), 131 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-29 06:55:08,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1594 states to 1594 states and 2005 transitions. [2023-11-29 06:55:08,631 INFO L78 Accepts]: Start accepts. Automaton has 1594 states and 2005 transitions. Word has length 132 [2023-11-29 06:55:08,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:08,632 INFO L495 AbstractCegarLoop]: Abstraction has 1594 states and 2005 transitions. [2023-11-29 06:55:08,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 9 states have internal predecessors, (88), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-29 06:55:08,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1594 states and 2005 transitions. [2023-11-29 06:55:08,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 06:55:08,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:08,633 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:08,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2023-11-29 06:55:08,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2023-11-29 06:55:08,834 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:08,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:08,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1445776496, now seen corresponding path program 1 times [2023-11-29 06:55:08,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:08,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374461511] [2023-11-29 06:55:08,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:08,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:08,843 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:08,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951313813] [2023-11-29 06:55:08,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:08,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:08,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:08,844 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:08,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2023-11-29 06:55:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:08,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:55:08,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:09,193 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:09,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:09,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:09,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374461511] [2023-11-29 06:55:09,425 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:09,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951313813] [2023-11-29 06:55:09,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951313813] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:55:09,425 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:55:09,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-29 06:55:09,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343535669] [2023-11-29 06:55:09,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:09,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:55:09,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:09,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:55:09,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:55:09,428 INFO L87 Difference]: Start difference. First operand 1594 states and 2005 transitions. Second operand has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 06:55:10,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:10,387 INFO L93 Difference]: Finished difference Result 2401 states and 3041 transitions. [2023-11-29 06:55:10,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:55:10,388 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 143 [2023-11-29 06:55:10,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:10,390 INFO L225 Difference]: With dead ends: 2401 [2023-11-29 06:55:10,390 INFO L226 Difference]: Without dead ends: 2399 [2023-11-29 06:55:10,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2023-11-29 06:55:10,391 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 772 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:10,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 889 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:55:10,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2023-11-29 06:55:10,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 2052. [2023-11-29 06:55:10,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2052 states, 1842 states have (on average 1.228555917480999) internal successors, (2263), 1872 states have internal predecessors, (2263), 175 states have call successors, (175), 6 states have call predecessors, (175), 6 states have return successors, (175), 173 states have call predecessors, (175), 175 states have call successors, (175) [2023-11-29 06:55:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2052 states to 2052 states and 2613 transitions. [2023-11-29 06:55:10,710 INFO L78 Accepts]: Start accepts. Automaton has 2052 states and 2613 transitions. Word has length 143 [2023-11-29 06:55:10,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:10,710 INFO L495 AbstractCegarLoop]: Abstraction has 2052 states and 2613 transitions. [2023-11-29 06:55:10,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 16.545454545454547) internal successors, (182), 12 states have internal predecessors, (182), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 06:55:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2052 states and 2613 transitions. [2023-11-29 06:55:10,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 06:55:10,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:10,711 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:10,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2023-11-29 06:55:10,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2023-11-29 06:55:10,912 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:10,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:10,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1039381412, now seen corresponding path program 1 times [2023-11-29 06:55:10,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:10,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115124195] [2023-11-29 06:55:10,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:10,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:10,920 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:10,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [377361316] [2023-11-29 06:55:10,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:10,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:10,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:10,921 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:10,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2023-11-29 06:55:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:10,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:55:10,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:11,303 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:11,304 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:11,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:11,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115124195] [2023-11-29 06:55:11,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:11,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377361316] [2023-11-29 06:55:11,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377361316] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:55:11,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:55:11,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:55:11,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51152301] [2023-11-29 06:55:11,495 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:11,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:55:11,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:11,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:55:11,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:55:11,496 INFO L87 Difference]: Start difference. First operand 2052 states and 2613 transitions. Second operand has 8 states, 7 states have (on average 26.428571428571427) internal successors, (185), 8 states have internal predecessors, (185), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:55:13,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:13,123 INFO L93 Difference]: Finished difference Result 2787 states and 3479 transitions. [2023-11-29 06:55:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:55:13,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 26.428571428571427) internal successors, (185), 8 states have internal predecessors, (185), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 145 [2023-11-29 06:55:13,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:13,126 INFO L225 Difference]: With dead ends: 2787 [2023-11-29 06:55:13,126 INFO L226 Difference]: Without dead ends: 2785 [2023-11-29 06:55:13,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:55:13,127 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 446 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:13,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 587 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:55:13,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2023-11-29 06:55:13,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2495. [2023-11-29 06:55:13,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2246 states have (on average 1.2297417631344614) internal successors, (2762), 2276 states have internal predecessors, (2762), 214 states have call successors, (214), 6 states have call predecessors, (214), 6 states have return successors, (214), 212 states have call predecessors, (214), 214 states have call successors, (214) [2023-11-29 06:55:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3190 transitions. [2023-11-29 06:55:13,508 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3190 transitions. Word has length 145 [2023-11-29 06:55:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:13,509 INFO L495 AbstractCegarLoop]: Abstraction has 2495 states and 3190 transitions. [2023-11-29 06:55:13,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 26.428571428571427) internal successors, (185), 8 states have internal predecessors, (185), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:55:13,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3190 transitions. [2023-11-29 06:55:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 06:55:13,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:13,510 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:13,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2023-11-29 06:55:13,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:13,710 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:13,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:13,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1076503194, now seen corresponding path program 1 times [2023-11-29 06:55:13,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:13,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93452428] [2023-11-29 06:55:13,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:13,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:13,723 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:13,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [98995819] [2023-11-29 06:55:13,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:13,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:13,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:13,724 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:13,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2023-11-29 06:55:13,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:13,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:55:13,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:14,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:14,270 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:14,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:14,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93452428] [2023-11-29 06:55:14,270 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:14,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98995819] [2023-11-29 06:55:14,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98995819] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:55:14,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:55:14,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 06:55:14,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651830963] [2023-11-29 06:55:14,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:14,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:55:14,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:14,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:55:14,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:55:14,271 INFO L87 Difference]: Start difference. First operand 2495 states and 3190 transitions. Second operand has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:55:16,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:16,285 INFO L93 Difference]: Finished difference Result 3286 states and 4131 transitions. [2023-11-29 06:55:16,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:55:16,285 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 147 [2023-11-29 06:55:16,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:16,289 INFO L225 Difference]: With dead ends: 3286 [2023-11-29 06:55:16,289 INFO L226 Difference]: Without dead ends: 3284 [2023-11-29 06:55:16,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:55:16,290 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 461 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:16,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 565 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 06:55:16,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3284 states. [2023-11-29 06:55:16,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3284 to 2988. [2023-11-29 06:55:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2697 states have (on average 1.232109751575825) internal successors, (3323), 2727 states have internal predecessors, (3323), 256 states have call successors, (256), 6 states have call predecessors, (256), 6 states have return successors, (256), 254 states have call predecessors, (256), 256 states have call successors, (256) [2023-11-29 06:55:16,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 3835 transitions. [2023-11-29 06:55:16,758 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 3835 transitions. Word has length 147 [2023-11-29 06:55:16,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:16,758 INFO L495 AbstractCegarLoop]: Abstraction has 2988 states and 3835 transitions. [2023-11-29 06:55:16,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 27.0) internal successors, (189), 8 states have internal predecessors, (189), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2023-11-29 06:55:16,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 3835 transitions. [2023-11-29 06:55:16,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:55:16,759 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:16,759 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:16,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2023-11-29 06:55:16,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2023-11-29 06:55:16,960 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:16,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:16,960 INFO L85 PathProgramCache]: Analyzing trace with hash 191616527, now seen corresponding path program 3 times [2023-11-29 06:55:16,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:16,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140695605] [2023-11-29 06:55:16,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:16,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:16,966 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:16,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1642175762] [2023-11-29 06:55:16,966 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:55:16,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:16,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:16,967 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:16,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2023-11-29 06:55:17,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:55:17,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:17,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:55:17,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 6 proven. 66 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-29 06:55:17,303 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:17,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:17,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140695605] [2023-11-29 06:55:17,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:17,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642175762] [2023-11-29 06:55:17,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642175762] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:17,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:17,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-29 06:55:17,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915844531] [2023-11-29 06:55:17,729 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:17,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:55:17,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:17,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:55:17,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-29 06:55:17,730 INFO L87 Difference]: Start difference. First operand 2988 states and 3835 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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 06:55:18,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:18,476 INFO L93 Difference]: Finished difference Result 3142 states and 4008 transitions. [2023-11-29 06:55:18,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:55:18,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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 153 [2023-11-29 06:55:18,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:18,480 INFO L225 Difference]: With dead ends: 3142 [2023-11-29 06:55:18,480 INFO L226 Difference]: Without dead ends: 3138 [2023-11-29 06:55:18,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:55:18,481 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 211 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:18,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 201 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:55:18,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3138 states. [2023-11-29 06:55:18,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3138 to 3070. [2023-11-29 06:55:18,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 2771 states have (on average 1.2327679538072898) internal successors, (3416), 2801 states have internal predecessors, (3416), 264 states have call successors, (264), 6 states have call predecessors, (264), 6 states have return successors, (264), 262 states have call predecessors, (264), 264 states have call successors, (264) [2023-11-29 06:55:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 3944 transitions. [2023-11-29 06:55:18,957 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 3944 transitions. Word has length 153 [2023-11-29 06:55:18,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:18,957 INFO L495 AbstractCegarLoop]: Abstraction has 3070 states and 3944 transitions. [2023-11-29 06:55:18,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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 06:55:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 3944 transitions. [2023-11-29 06:55:18,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:55:18,958 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:18,959 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:18,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2023-11-29 06:55:19,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2023-11-29 06:55:19,159 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:19,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:19,160 INFO L85 PathProgramCache]: Analyzing trace with hash -230363157, now seen corresponding path program 4 times [2023-11-29 06:55:19,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:19,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176947058] [2023-11-29 06:55:19,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:19,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:19,168 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:19,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087548789] [2023-11-29 06:55:19,169 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 06:55:19,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:19,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:19,170 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:19,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2023-11-29 06:55:19,258 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 06:55:19,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:19,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:55:19,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 27 proven. 78 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:20,576 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:20,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:20,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176947058] [2023-11-29 06:55:20,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:20,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087548789] [2023-11-29 06:55:20,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087548789] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:20,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:20,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-29 06:55:20,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030054558] [2023-11-29 06:55:20,800 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:20,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 06:55:20,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:20,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 06:55:20,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:55:20,802 INFO L87 Difference]: Start difference. First operand 3070 states and 3944 transitions. Second operand has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 06:55:24,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:24,023 INFO L93 Difference]: Finished difference Result 3164 states and 4023 transitions. [2023-11-29 06:55:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:55:24,024 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 153 [2023-11-29 06:55:24,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:24,027 INFO L225 Difference]: With dead ends: 3164 [2023-11-29 06:55:24,027 INFO L226 Difference]: Without dead ends: 3162 [2023-11-29 06:55:24,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2023-11-29 06:55:24,028 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 182 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:24,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 567 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 06:55:24,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2023-11-29 06:55:24,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 3086. [2023-11-29 06:55:24,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3086 states, 2785 states have (on average 1.2308797127468583) internal successors, (3428), 2815 states have internal predecessors, (3428), 266 states have call successors, (266), 6 states have call predecessors, (266), 6 states have return successors, (266), 264 states have call predecessors, (266), 266 states have call successors, (266) [2023-11-29 06:55:24,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 3960 transitions. [2023-11-29 06:55:24,523 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 3960 transitions. Word has length 153 [2023-11-29 06:55:24,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:24,524 INFO L495 AbstractCegarLoop]: Abstraction has 3086 states and 3960 transitions. [2023-11-29 06:55:24,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.666666666666666) internal successors, (104), 13 states have internal predecessors, (104), 5 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 06:55:24,524 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 3960 transitions. [2023-11-29 06:55:24,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:55:24,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:24,525 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:24,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2023-11-29 06:55:24,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2023-11-29 06:55:24,726 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:24,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:24,726 INFO L85 PathProgramCache]: Analyzing trace with hash -409064561, now seen corresponding path program 5 times [2023-11-29 06:55:24,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:24,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315843505] [2023-11-29 06:55:24,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:24,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:24,735 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:24,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855165670] [2023-11-29 06:55:24,736 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 06:55:24,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:24,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:24,737 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:24,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2023-11-29 06:55:25,829 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 06:55:25,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:25,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:55:25,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:26,367 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:26,367 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:26,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:26,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315843505] [2023-11-29 06:55:26,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:26,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855165670] [2023-11-29 06:55:26,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855165670] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:26,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:26,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:55:26,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037871995] [2023-11-29 06:55:26,452 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:26,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:55:26,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:26,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:55:26,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:55:26,453 INFO L87 Difference]: Start difference. First operand 3086 states and 3960 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:27,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:27,564 INFO L93 Difference]: Finished difference Result 3101 states and 3965 transitions. [2023-11-29 06:55:27,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:55:27,565 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 153 [2023-11-29 06:55:27,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:27,568 INFO L225 Difference]: With dead ends: 3101 [2023-11-29 06:55:27,568 INFO L226 Difference]: Without dead ends: 3098 [2023-11-29 06:55:27,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:55:27,569 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 111 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:27,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 430 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:55:27,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3098 states. [2023-11-29 06:55:28,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3098 to 3084. [2023-11-29 06:55:28,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 2785 states have (on average 1.229802513464991) internal successors, (3425), 2813 states have internal predecessors, (3425), 266 states have call successors, (266), 6 states have call predecessors, (266), 6 states have return successors, (266), 264 states have call predecessors, (266), 266 states have call successors, (266) [2023-11-29 06:55:28,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 3957 transitions. [2023-11-29 06:55:28,065 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 3957 transitions. Word has length 153 [2023-11-29 06:55:28,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:28,065 INFO L495 AbstractCegarLoop]: Abstraction has 3084 states and 3957 transitions. [2023-11-29 06:55:28,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:28,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 3957 transitions. [2023-11-29 06:55:28,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:55:28,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:28,066 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:28,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2023-11-29 06:55:28,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2023-11-29 06:55:28,267 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:28,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:28,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1100024641, now seen corresponding path program 6 times [2023-11-29 06:55:28,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:28,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990878083] [2023-11-29 06:55:28,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:28,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:28,275 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:28,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990233456] [2023-11-29 06:55:28,275 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 06:55:28,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:28,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:28,276 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:28,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2023-11-29 06:55:29,730 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-11-29 06:55:29,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:29,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:55:29,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:30,440 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:30,440 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:30,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:30,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990878083] [2023-11-29 06:55:30,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:30,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990233456] [2023-11-29 06:55:30,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990233456] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:30,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:30,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:55:30,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021921921] [2023-11-29 06:55:30,957 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:30,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:55:30,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:30,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:55:30,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:55:30,958 INFO L87 Difference]: Start difference. First operand 3084 states and 3957 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:32,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:32,151 INFO L93 Difference]: Finished difference Result 3100 states and 3969 transitions. [2023-11-29 06:55:32,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:55:32,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 153 [2023-11-29 06:55:32,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:32,154 INFO L225 Difference]: With dead ends: 3100 [2023-11-29 06:55:32,154 INFO L226 Difference]: Without dead ends: 3099 [2023-11-29 06:55:32,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:55:32,155 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 60 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:32,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 442 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:55:32,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2023-11-29 06:55:32,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 3084. [2023-11-29 06:55:32,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 2785 states have (on average 1.229443447037702) internal successors, (3424), 2813 states have internal predecessors, (3424), 266 states have call successors, (266), 6 states have call predecessors, (266), 6 states have return successors, (266), 264 states have call predecessors, (266), 266 states have call successors, (266) [2023-11-29 06:55:32,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 3956 transitions. [2023-11-29 06:55:32,641 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 3956 transitions. Word has length 153 [2023-11-29 06:55:32,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:32,642 INFO L495 AbstractCegarLoop]: Abstraction has 3084 states and 3956 transitions. [2023-11-29 06:55:32,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:32,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 3956 transitions. [2023-11-29 06:55:32,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-29 06:55:32,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:32,643 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:32,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2023-11-29 06:55:32,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:32,843 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:32,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:32,844 INFO L85 PathProgramCache]: Analyzing trace with hash 678044957, now seen corresponding path program 7 times [2023-11-29 06:55:32,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:32,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663901247] [2023-11-29 06:55:32,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:32,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:32,853 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:32,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381930744] [2023-11-29 06:55:32,853 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 06:55:32,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:32,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:32,855 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:32,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2023-11-29 06:55:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:32,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:55:32,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:33,555 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:33,556 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:33,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:33,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663901247] [2023-11-29 06:55:33,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:33,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381930744] [2023-11-29 06:55:33,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381930744] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:33,632 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:33,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:55:33,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299804854] [2023-11-29 06:55:33,632 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:33,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:55:33,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:33,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:55:33,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:55:33,633 INFO L87 Difference]: Start difference. First operand 3084 states and 3956 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:34,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:34,460 INFO L93 Difference]: Finished difference Result 3086 states and 3956 transitions. [2023-11-29 06:55:34,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:55:34,460 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 153 [2023-11-29 06:55:34,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:34,464 INFO L225 Difference]: With dead ends: 3086 [2023-11-29 06:55:34,464 INFO L226 Difference]: Without dead ends: 3085 [2023-11-29 06:55:34,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:55:34,465 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 68 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:34,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 294 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:55:34,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2023-11-29 06:55:34,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 3084. [2023-11-29 06:55:34,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 2785 states have (on average 1.229084380610413) internal successors, (3423), 2813 states have internal predecessors, (3423), 266 states have call successors, (266), 6 states have call predecessors, (266), 6 states have return successors, (266), 264 states have call predecessors, (266), 266 states have call successors, (266) [2023-11-29 06:55:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 3955 transitions. [2023-11-29 06:55:34,943 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 3955 transitions. Word has length 153 [2023-11-29 06:55:34,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:34,943 INFO L495 AbstractCegarLoop]: Abstraction has 3084 states and 3955 transitions. [2023-11-29 06:55:34,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 3955 transitions. [2023-11-29 06:55:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 06:55:34,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:34,945 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:55:34,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2023-11-29 06:55:35,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:35,145 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:35,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:35,145 INFO L85 PathProgramCache]: Analyzing trace with hash -2103446236, now seen corresponding path program 1 times [2023-11-29 06:55:35,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:35,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108204189] [2023-11-29 06:55:35,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:35,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:35,153 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:35,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228970186] [2023-11-29 06:55:35,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:35,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:35,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:35,154 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:35,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2023-11-29 06:55:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:35,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:55:35,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2023-11-29 06:55:35,404 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:35,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:35,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108204189] [2023-11-29 06:55:35,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:35,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228970186] [2023-11-29 06:55:35,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228970186] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:35,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:35,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-29 06:55:35,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377554633] [2023-11-29 06:55:35,538 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:35,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:55:35,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:35,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:55:35,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:55:35,539 INFO L87 Difference]: Start difference. First operand 3084 states and 3955 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 06:55:36,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:36,309 INFO L93 Difference]: Finished difference Result 3104 states and 3964 transitions. [2023-11-29 06:55:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:55:36,309 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 155 [2023-11-29 06:55:36,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:36,313 INFO L225 Difference]: With dead ends: 3104 [2023-11-29 06:55:36,313 INFO L226 Difference]: Without dead ends: 3086 [2023-11-29 06:55:36,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:55:36,314 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 86 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:36,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 279 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 06:55:36,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3086 states. [2023-11-29 06:55:36,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3086 to 3066. [2023-11-29 06:55:36,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2771 states have (on average 1.2197762540599062) internal successors, (3380), 2796 states have internal predecessors, (3380), 263 states have call successors, (263), 6 states have call predecessors, (263), 6 states have return successors, (263), 263 states have call predecessors, (263), 263 states have call successors, (263) [2023-11-29 06:55:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 3906 transitions. [2023-11-29 06:55:36,797 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 3906 transitions. Word has length 155 [2023-11-29 06:55:36,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:36,798 INFO L495 AbstractCegarLoop]: Abstraction has 3066 states and 3906 transitions. [2023-11-29 06:55:36,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 06:55:36,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 3906 transitions. [2023-11-29 06:55:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 06:55:36,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:36,799 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:36,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2023-11-29 06:55:36,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:36,999 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:37,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:37,000 INFO L85 PathProgramCache]: Analyzing trace with hash -540109519, now seen corresponding path program 3 times [2023-11-29 06:55:37,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:37,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906408586] [2023-11-29 06:55:37,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:37,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:37,007 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:37,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930061540] [2023-11-29 06:55:37,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:55:37,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:37,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:37,009 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:37,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2023-11-29 06:55:37,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:55:37,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:37,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 06:55:37,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:38,243 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 87 proven. 24 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:38,244 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:39,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:39,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906408586] [2023-11-29 06:55:39,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:39,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930061540] [2023-11-29 06:55:39,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930061540] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:39,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:39,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:55:39,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878269759] [2023-11-29 06:55:39,973 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:39,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:55:39,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:39,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:55:39,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:55:39,974 INFO L87 Difference]: Start difference. First operand 3066 states and 3906 transitions. Second operand has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:43,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 06:55:44,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:44,476 INFO L93 Difference]: Finished difference Result 3104 states and 3931 transitions. [2023-11-29 06:55:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:55:44,477 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2023-11-29 06:55:44,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:44,479 INFO L225 Difference]: With dead ends: 3104 [2023-11-29 06:55:44,479 INFO L226 Difference]: Without dead ends: 3103 [2023-11-29 06:55:44,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2023-11-29 06:55:44,480 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 169 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:44,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 705 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 06:55:44,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2023-11-29 06:55:44,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3066. [2023-11-29 06:55:44,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2771 states have (on average 1.2190544929628293) internal successors, (3378), 2796 states have internal predecessors, (3378), 263 states have call successors, (263), 6 states have call predecessors, (263), 6 states have return successors, (263), 263 states have call predecessors, (263), 263 states have call successors, (263) [2023-11-29 06:55:44,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 3904 transitions. [2023-11-29 06:55:44,988 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 3904 transitions. Word has length 155 [2023-11-29 06:55:44,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:44,988 INFO L495 AbstractCegarLoop]: Abstraction has 3066 states and 3904 transitions. [2023-11-29 06:55:44,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:44,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 3904 transitions. [2023-11-29 06:55:44,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 06:55:44,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:44,990 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:44,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2023-11-29 06:55:45,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:45,190 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:45,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:45,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1959307277, now seen corresponding path program 4 times [2023-11-29 06:55:45,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:45,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207633883] [2023-11-29 06:55:45,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:45,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:45,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:45,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756482411] [2023-11-29 06:55:45,199 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 06:55:45,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:45,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:45,200 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:45,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2023-11-29 06:55:45,275 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 06:55:45,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:45,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:55:45,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:46,007 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:46,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:46,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:46,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207633883] [2023-11-29 06:55:46,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:46,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756482411] [2023-11-29 06:55:46,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756482411] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:46,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:46,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:55:46,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992645437] [2023-11-29 06:55:46,098 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:46,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:55:46,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:46,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:55:46,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:55:46,099 INFO L87 Difference]: Start difference. First operand 3066 states and 3904 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:47,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:47,212 INFO L93 Difference]: Finished difference Result 3069 states and 3904 transitions. [2023-11-29 06:55:47,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:55:47,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2023-11-29 06:55:47,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:47,217 INFO L225 Difference]: With dead ends: 3069 [2023-11-29 06:55:47,217 INFO L226 Difference]: Without dead ends: 3068 [2023-11-29 06:55:47,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-29 06:55:47,218 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 77 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:47,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 362 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:55:47,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2023-11-29 06:55:47,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 3066. [2023-11-29 06:55:47,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2771 states have (on average 1.2186936124142909) internal successors, (3377), 2796 states have internal predecessors, (3377), 263 states have call successors, (263), 6 states have call predecessors, (263), 6 states have return successors, (263), 263 states have call predecessors, (263), 263 states have call successors, (263) [2023-11-29 06:55:47,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 3903 transitions. [2023-11-29 06:55:47,693 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 3903 transitions. Word has length 155 [2023-11-29 06:55:47,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:47,693 INFO L495 AbstractCegarLoop]: Abstraction has 3066 states and 3903 transitions. [2023-11-29 06:55:47,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:47,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 3903 transitions. [2023-11-29 06:55:47,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 06:55:47,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:47,695 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:47,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2023-11-29 06:55:47,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:47,895 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:47,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:47,896 INFO L85 PathProgramCache]: Analyzing trace with hash 495084351, now seen corresponding path program 5 times [2023-11-29 06:55:47,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:47,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179812625] [2023-11-29 06:55:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:47,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:47,905 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:47,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847806931] [2023-11-29 06:55:47,906 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 06:55:47,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:47,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:47,907 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:47,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2023-11-29 06:55:47,989 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-11-29 06:55:47,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:47,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:55:47,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:48,608 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:48,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:48,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:48,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179812625] [2023-11-29 06:55:48,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:48,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847806931] [2023-11-29 06:55:48,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847806931] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:48,701 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:48,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:55:48,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524902253] [2023-11-29 06:55:48,701 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:48,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:55:48,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:48,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:55:48,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:55:48,702 INFO L87 Difference]: Start difference. First operand 3066 states and 3903 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:49,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:49,608 INFO L93 Difference]: Finished difference Result 3070 states and 3903 transitions. [2023-11-29 06:55:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:55:49,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2023-11-29 06:55:49,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:49,611 INFO L225 Difference]: With dead ends: 3070 [2023-11-29 06:55:49,612 INFO L226 Difference]: Without dead ends: 3069 [2023-11-29 06:55:49,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:55:49,612 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 46 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:49,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 367 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 06:55:49,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2023-11-29 06:55:50,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 3066. [2023-11-29 06:55:50,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2771 states have (on average 1.2183327318657524) internal successors, (3376), 2796 states have internal predecessors, (3376), 263 states have call successors, (263), 6 states have call predecessors, (263), 6 states have return successors, (263), 263 states have call predecessors, (263), 263 states have call successors, (263) [2023-11-29 06:55:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 3902 transitions. [2023-11-29 06:55:50,097 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 3902 transitions. Word has length 155 [2023-11-29 06:55:50,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:50,097 INFO L495 AbstractCegarLoop]: Abstraction has 3066 states and 3902 transitions. [2023-11-29 06:55:50,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:50,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 3902 transitions. [2023-11-29 06:55:50,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-29 06:55:50,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:50,098 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:50,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2023-11-29 06:55:50,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:50,299 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:50,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:50,299 INFO L85 PathProgramCache]: Analyzing trace with hash 561726947, now seen corresponding path program 6 times [2023-11-29 06:55:50,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:50,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044204591] [2023-11-29 06:55:50,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:50,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:50,307 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:50,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [175149183] [2023-11-29 06:55:50,307 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 06:55:50,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:50,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:50,309 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:50,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2023-11-29 06:55:53,318 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-11-29 06:55:53,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:53,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 06:55:53,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:54,045 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-29 06:55:54,045 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:54,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:54,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044204591] [2023-11-29 06:55:54,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:54,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175149183] [2023-11-29 06:55:54,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175149183] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:54,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:54,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2023-11-29 06:55:54,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382565430] [2023-11-29 06:55:54,139 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:54,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 06:55:54,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:54,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 06:55:54,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-29 06:55:54,140 INFO L87 Difference]: Start difference. First operand 3066 states and 3902 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:55,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:55,149 INFO L93 Difference]: Finished difference Result 3069 states and 3902 transitions. [2023-11-29 06:55:55,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 06:55:55,150 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 155 [2023-11-29 06:55:55,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:55,153 INFO L225 Difference]: With dead ends: 3069 [2023-11-29 06:55:55,153 INFO L226 Difference]: Without dead ends: 3068 [2023-11-29 06:55:55,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:55:55,154 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 50 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:55,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 322 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 06:55:55,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2023-11-29 06:55:55,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 3066. [2023-11-29 06:55:55,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2771 states have (on average 1.217971851317214) internal successors, (3375), 2796 states have internal predecessors, (3375), 263 states have call successors, (263), 6 states have call predecessors, (263), 6 states have return successors, (263), 263 states have call predecessors, (263), 263 states have call successors, (263) [2023-11-29 06:55:55,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 3901 transitions. [2023-11-29 06:55:55,672 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 3901 transitions. Word has length 155 [2023-11-29 06:55:55,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:55,672 INFO L495 AbstractCegarLoop]: Abstraction has 3066 states and 3901 transitions. [2023-11-29 06:55:55,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-29 06:55:55,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 3901 transitions. [2023-11-29 06:55:55,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 06:55:55,673 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:55,673 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:55,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2023-11-29 06:55:55,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-11-29 06:55:55,874 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:55,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:55,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1610642947, now seen corresponding path program 1 times [2023-11-29 06:55:55,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:55,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976363285] [2023-11-29 06:55:55,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:55,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:55,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:55,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1310659502] [2023-11-29 06:55:55,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:55,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:55,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:55,891 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:55,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2023-11-29 06:55:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:55:55,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:55:55,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:56,914 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 06:55:56,914 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:57,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976363285] [2023-11-29 06:55:57,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:57,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310659502] [2023-11-29 06:55:57,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310659502] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:57,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:57,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:55:57,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755676889] [2023-11-29 06:55:57,034 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:57,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:55:57,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:57,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:55:57,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:55:57,035 INFO L87 Difference]: Start difference. First operand 3066 states and 3901 transitions. Second operand has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 10 states have internal predecessors, (109), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:55:58,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:55:58,284 INFO L93 Difference]: Finished difference Result 3198 states and 4050 transitions. [2023-11-29 06:55:58,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 06:55:58,285 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 10 states have internal predecessors, (109), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 163 [2023-11-29 06:55:58,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:55:58,288 INFO L225 Difference]: With dead ends: 3198 [2023-11-29 06:55:58,288 INFO L226 Difference]: Without dead ends: 3197 [2023-11-29 06:55:58,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:55:58,289 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 174 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:55:58,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 510 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:55:58,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2023-11-29 06:55:58,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3072. [2023-11-29 06:55:58,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 2777 states have (on average 1.2167806985956067) internal successors, (3379), 2802 states have internal predecessors, (3379), 263 states have call successors, (263), 6 states have call predecessors, (263), 6 states have return successors, (263), 263 states have call predecessors, (263), 263 states have call successors, (263) [2023-11-29 06:55:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 3905 transitions. [2023-11-29 06:55:58,768 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 3905 transitions. Word has length 163 [2023-11-29 06:55:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:55:58,768 INFO L495 AbstractCegarLoop]: Abstraction has 3072 states and 3905 transitions. [2023-11-29 06:55:58,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.11111111111111) internal successors, (109), 10 states have internal predecessors, (109), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:55:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 3905 transitions. [2023-11-29 06:55:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-29 06:55:58,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:55:58,770 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:55:58,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2023-11-29 06:55:58,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:58,970 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:55:58,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:55:58,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1740920337, now seen corresponding path program 3 times [2023-11-29 06:55:58,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:55:58,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335807030] [2023-11-29 06:55:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:55:58,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:55:58,978 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:55:58,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1682490100] [2023-11-29 06:55:58,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:55:58,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:55:58,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:55:58,979 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:55:58,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2023-11-29 06:55:59,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:55:59,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:55:59,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:55:59,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:55:59,768 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 3 proven. 135 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-29 06:55:59,769 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:55:59,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:55:59,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335807030] [2023-11-29 06:55:59,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:55:59,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682490100] [2023-11-29 06:55:59,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682490100] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:55:59,876 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:55:59,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:55:59,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465205885] [2023-11-29 06:55:59,876 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:55:59,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:55:59,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:55:59,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:55:59,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:55:59,877 INFO L87 Difference]: Start difference. First operand 3072 states and 3905 transitions. Second operand has 10 states, 8 states have (on average 14.0) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:56:01,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:01,558 INFO L93 Difference]: Finished difference Result 3662 states and 4627 transitions. [2023-11-29 06:56:01,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:56:01,559 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 14.0) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 163 [2023-11-29 06:56:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:01,562 INFO L225 Difference]: With dead ends: 3662 [2023-11-29 06:56:01,562 INFO L226 Difference]: Without dead ends: 3660 [2023-11-29 06:56:01,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:56:01,563 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 476 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:01,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 624 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:56:01,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3660 states. [2023-11-29 06:56:02,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3660 to 3076. [2023-11-29 06:56:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 2781 states have (on average 1.215749730312837) internal successors, (3381), 2806 states have internal predecessors, (3381), 263 states have call successors, (263), 6 states have call predecessors, (263), 6 states have return successors, (263), 263 states have call predecessors, (263), 263 states have call successors, (263) [2023-11-29 06:56:02,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 3907 transitions. [2023-11-29 06:56:02,053 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 3907 transitions. Word has length 163 [2023-11-29 06:56:02,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:02,053 INFO L495 AbstractCegarLoop]: Abstraction has 3076 states and 3907 transitions. [2023-11-29 06:56:02,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 14.0) internal successors, (112), 9 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:56:02,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 3907 transitions. [2023-11-29 06:56:02,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 06:56:02,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:02,054 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:02,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2023-11-29 06:56:02,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:56:02,255 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:56:02,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:02,255 INFO L85 PathProgramCache]: Analyzing trace with hash 530307923, now seen corresponding path program 2 times [2023-11-29 06:56:02,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:02,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252034730] [2023-11-29 06:56:02,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:02,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:02,263 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:56:02,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [623873497] [2023-11-29 06:56:02,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:56:02,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:56:02,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:56:02,265 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:56:02,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2023-11-29 06:56:02,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:56:02,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:56:02,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:56:02,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:56:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 06:56:03,203 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:56:03,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:03,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252034730] [2023-11-29 06:56:03,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:56:03,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623873497] [2023-11-29 06:56:03,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623873497] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:56:03,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:56:03,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:56:03,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883102611] [2023-11-29 06:56:03,449 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:56:03,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:56:03,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:03,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:56:03,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:56:03,450 INFO L87 Difference]: Start difference. First operand 3076 states and 3907 transitions. Second operand has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:56:05,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:05,119 INFO L93 Difference]: Finished difference Result 3198 states and 4046 transitions. [2023-11-29 06:56:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 06:56:05,119 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 166 [2023-11-29 06:56:05,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:05,122 INFO L225 Difference]: With dead ends: 3198 [2023-11-29 06:56:05,122 INFO L226 Difference]: Without dead ends: 3197 [2023-11-29 06:56:05,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2023-11-29 06:56:05,123 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 209 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:05,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 446 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 06:56:05,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2023-11-29 06:56:05,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3076. [2023-11-29 06:56:05,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 2781 states have (on average 1.2153901474289823) internal successors, (3380), 2806 states have internal predecessors, (3380), 263 states have call successors, (263), 6 states have call predecessors, (263), 6 states have return successors, (263), 263 states have call predecessors, (263), 263 states have call successors, (263) [2023-11-29 06:56:05,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 3906 transitions. [2023-11-29 06:56:05,616 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 3906 transitions. Word has length 166 [2023-11-29 06:56:05,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:05,616 INFO L495 AbstractCegarLoop]: Abstraction has 3076 states and 3906 transitions. [2023-11-29 06:56:05,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.2) internal successors, (112), 11 states have internal predecessors, (112), 5 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2023-11-29 06:56:05,617 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 3906 transitions. [2023-11-29 06:56:05,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-29 06:56:05,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:05,618 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:05,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2023-11-29 06:56:05,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2023-11-29 06:56:05,819 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:56:05,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:05,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1026402171, now seen corresponding path program 3 times [2023-11-29 06:56:05,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:05,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006783506] [2023-11-29 06:56:05,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:05,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:05,828 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:56:05,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147726548] [2023-11-29 06:56:05,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:56:05,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:56:05,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:56:05,829 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:56:05,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2023-11-29 06:56:05,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:56:05,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:56:05,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:56:05,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:56:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2023-11-29 06:56:06,634 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:56:06,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:06,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006783506] [2023-11-29 06:56:06,949 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:56:06,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147726548] [2023-11-29 06:56:06,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147726548] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:56:06,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:56:06,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:56:06,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177771989] [2023-11-29 06:56:06,950 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:56:06,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:56:06,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:06,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:56:06,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:56:06,951 INFO L87 Difference]: Start difference. First operand 3076 states and 3906 transitions. Second operand has 10 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 06:56:08,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:56:08,586 INFO L93 Difference]: Finished difference Result 3578 states and 4509 transitions. [2023-11-29 06:56:08,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:56:08,587 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 166 [2023-11-29 06:56:08,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:56:08,590 INFO L225 Difference]: With dead ends: 3578 [2023-11-29 06:56:08,590 INFO L226 Difference]: Without dead ends: 3576 [2023-11-29 06:56:08,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:56:08,591 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 450 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:56:08,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 540 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:56:08,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2023-11-29 06:56:09,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3098. [2023-11-29 06:56:09,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3098 states, 2801 states have (on average 1.214566226347733) internal successors, (3402), 2826 states have internal predecessors, (3402), 265 states have call successors, (265), 6 states have call predecessors, (265), 6 states have return successors, (265), 265 states have call predecessors, (265), 265 states have call successors, (265) [2023-11-29 06:56:09,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 3932 transitions. [2023-11-29 06:56:09,104 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 3932 transitions. Word has length 166 [2023-11-29 06:56:09,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:56:09,104 INFO L495 AbstractCegarLoop]: Abstraction has 3098 states and 3932 transitions. [2023-11-29 06:56:09,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-29 06:56:09,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 3932 transitions. [2023-11-29 06:56:09,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 06:56:09,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:56:09,106 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:56:09,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2023-11-29 06:56:09,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:56:09,306 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:56:09,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:56:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash 844911374, now seen corresponding path program 3 times [2023-11-29 06:56:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:56:09,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128747770] [2023-11-29 06:56:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:56:09,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:56:09,315 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:56:09,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [309169420] [2023-11-29 06:56:09,315 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:56:09,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:56:09,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:56:09,316 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:56:09,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2023-11-29 06:56:09,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 06:56:09,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:56:09,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 06:56:09,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:56:14,753 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 142 proven. 3 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 06:56:14,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:56:45,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:56:45,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128747770] [2023-11-29 06:56:45,017 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:56:45,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309169420] [2023-11-29 06:56:45,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309169420] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:56:45,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:56:45,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2023-11-29 06:56:45,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735799009] [2023-11-29 06:56:45,018 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:56:45,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 06:56:45,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:56:45,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 06:56:45,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=479, Unknown=4, NotChecked=0, Total=600 [2023-11-29 06:56:45,019 INFO L87 Difference]: Start difference. First operand 3098 states and 3932 transitions. Second operand has 16 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 06:57:01,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:01,980 INFO L93 Difference]: Finished difference Result 3143 states and 3959 transitions. [2023-11-29 06:57:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 06:57:01,981 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 174 [2023-11-29 06:57:01,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:01,984 INFO L225 Difference]: With dead ends: 3143 [2023-11-29 06:57:01,984 INFO L226 Difference]: Without dead ends: 3140 [2023-11-29 06:57:01,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 32.9s TimeCoverageRelationStatistics Valid=242, Invalid=809, Unknown=5, NotChecked=0, Total=1056 [2023-11-29 06:57:01,985 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 413 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:01,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 352 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-11-29 06:57:01,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2023-11-29 06:57:02,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3095. [2023-11-29 06:57:02,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 2798 states have (on average 1.2122944960686204) internal successors, (3392), 2823 states have internal predecessors, (3392), 265 states have call successors, (265), 6 states have call predecessors, (265), 6 states have return successors, (265), 265 states have call predecessors, (265), 265 states have call successors, (265) [2023-11-29 06:57:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 3922 transitions. [2023-11-29 06:57:02,522 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 3922 transitions. Word has length 174 [2023-11-29 06:57:02,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:02,522 INFO L495 AbstractCegarLoop]: Abstraction has 3095 states and 3922 transitions. [2023-11-29 06:57:02,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 5.076923076923077) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-29 06:57:02,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 3922 transitions. [2023-11-29 06:57:02,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-29 06:57:02,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:02,524 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:02,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2023-11-29 06:57:02,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:02,724 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:57:02,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:02,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1625063872, now seen corresponding path program 1 times [2023-11-29 06:57:02,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:02,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610709360] [2023-11-29 06:57:02,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:02,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:02,734 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:02,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058907618] [2023-11-29 06:57:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:02,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:02,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:02,735 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:02,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2023-11-29 06:57:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:02,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:57:02,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:03,794 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 06:57:03,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:03,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:03,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610709360] [2023-11-29 06:57:03,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:03,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058907618] [2023-11-29 06:57:03,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058907618] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:57:03,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:57:03,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:57:03,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737524] [2023-11-29 06:57:03,897 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:03,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:57:03,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:03,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:57:03,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:57:03,898 INFO L87 Difference]: Start difference. First operand 3095 states and 3922 transitions. Second operand has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:57:05,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:05,140 INFO L93 Difference]: Finished difference Result 3176 states and 4013 transitions. [2023-11-29 06:57:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:57:05,141 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 174 [2023-11-29 06:57:05,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:05,144 INFO L225 Difference]: With dead ends: 3176 [2023-11-29 06:57:05,144 INFO L226 Difference]: Without dead ends: 3175 [2023-11-29 06:57:05,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:57:05,144 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 168 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:05,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 414 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 06:57:05,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3175 states. [2023-11-29 06:57:05,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3175 to 3095. [2023-11-29 06:57:05,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 2798 states have (on average 1.2119370979270907) internal successors, (3391), 2823 states have internal predecessors, (3391), 265 states have call successors, (265), 6 states have call predecessors, (265), 6 states have return successors, (265), 265 states have call predecessors, (265), 265 states have call successors, (265) [2023-11-29 06:57:05,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 3921 transitions. [2023-11-29 06:57:05,652 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 3921 transitions. Word has length 174 [2023-11-29 06:57:05,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:05,652 INFO L495 AbstractCegarLoop]: Abstraction has 3095 states and 3921 transitions. [2023-11-29 06:57:05,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.5) internal successors, (115), 11 states have internal predecessors, (115), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:57:05,652 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 3921 transitions. [2023-11-29 06:57:05,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 06:57:05,654 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:05,654 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:05,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2023-11-29 06:57:05,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:05,854 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:57:05,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:05,855 INFO L85 PathProgramCache]: Analyzing trace with hash 593628273, now seen corresponding path program 2 times [2023-11-29 06:57:05,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:05,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362565793] [2023-11-29 06:57:05,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:05,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:05,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:05,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1894001852] [2023-11-29 06:57:05,864 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:57:05,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:05,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:05,865 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:05,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2023-11-29 06:57:05,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:57:05,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:57:05,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:57:05,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:06,929 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 06:57:06,930 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:07,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:07,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362565793] [2023-11-29 06:57:07,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:07,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894001852] [2023-11-29 06:57:07,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894001852] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:57:07,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:57:07,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:57:07,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904513843] [2023-11-29 06:57:07,180 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:07,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:57:07,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:07,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:57:07,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:57:07,181 INFO L87 Difference]: Start difference. First operand 3095 states and 3921 transitions. Second operand has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:57:08,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:08,817 INFO L93 Difference]: Finished difference Result 3178 states and 4015 transitions. [2023-11-29 06:57:08,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:57:08,818 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 177 [2023-11-29 06:57:08,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:08,821 INFO L225 Difference]: With dead ends: 3178 [2023-11-29 06:57:08,821 INFO L226 Difference]: Without dead ends: 3177 [2023-11-29 06:57:08,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:57:08,822 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 173 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:08,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 470 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 06:57:08,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2023-11-29 06:57:09,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 3095. [2023-11-29 06:57:09,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 2798 states have (on average 1.211579699785561) internal successors, (3390), 2823 states have internal predecessors, (3390), 265 states have call successors, (265), 6 states have call predecessors, (265), 6 states have return successors, (265), 265 states have call predecessors, (265), 265 states have call successors, (265) [2023-11-29 06:57:09,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 3920 transitions. [2023-11-29 06:57:09,341 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 3920 transitions. Word has length 177 [2023-11-29 06:57:09,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:09,342 INFO L495 AbstractCegarLoop]: Abstraction has 3095 states and 3920 transitions. [2023-11-29 06:57:09,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:57:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 3920 transitions. [2023-11-29 06:57:09,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 06:57:09,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:09,343 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:09,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2023-11-29 06:57:09,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:09,544 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:57:09,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:09,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1368679403, now seen corresponding path program 3 times [2023-11-29 06:57:09,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:09,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021686591] [2023-11-29 06:57:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:09,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:09,553 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:09,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1433198517] [2023-11-29 06:57:09,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:57:09,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:09,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:09,554 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:09,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2023-11-29 06:57:09,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:57:09,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:57:09,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:57:09,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:11,030 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2023-11-29 06:57:11,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:11,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:11,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021686591] [2023-11-29 06:57:11,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:11,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433198517] [2023-11-29 06:57:11,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433198517] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:57:11,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:57:11,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-11-29 06:57:11,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369107510] [2023-11-29 06:57:11,320 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:11,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 06:57:11,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:11,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 06:57:11,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:57:11,321 INFO L87 Difference]: Start difference. First operand 3095 states and 3920 transitions. Second operand has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:57:13,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:13,099 INFO L93 Difference]: Finished difference Result 3173 states and 4004 transitions. [2023-11-29 06:57:13,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 06:57:13,099 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 177 [2023-11-29 06:57:13,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:13,102 INFO L225 Difference]: With dead ends: 3173 [2023-11-29 06:57:13,102 INFO L226 Difference]: Without dead ends: 3172 [2023-11-29 06:57:13,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:57:13,103 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 152 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:13,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 592 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 06:57:13,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2023-11-29 06:57:13,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3095. [2023-11-29 06:57:13,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 2798 states have (on average 1.2112223016440316) internal successors, (3389), 2823 states have internal predecessors, (3389), 265 states have call successors, (265), 6 states have call predecessors, (265), 6 states have return successors, (265), 265 states have call predecessors, (265), 265 states have call successors, (265) [2023-11-29 06:57:13,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 3919 transitions. [2023-11-29 06:57:13,593 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 3919 transitions. Word has length 177 [2023-11-29 06:57:13,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:13,593 INFO L495 AbstractCegarLoop]: Abstraction has 3095 states and 3919 transitions. [2023-11-29 06:57:13,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 11.8) internal successors, (118), 11 states have internal predecessors, (118), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:57:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 3919 transitions. [2023-11-29 06:57:13,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 06:57:13,595 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:13,595 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:13,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2023-11-29 06:57:13,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:13,795 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:57:13,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1273449379, now seen corresponding path program 4 times [2023-11-29 06:57:13,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:13,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38052435] [2023-11-29 06:57:13,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:13,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:13,804 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:13,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548507809] [2023-11-29 06:57:13,804 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 06:57:13,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:13,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:13,805 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:13,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2023-11-29 06:57:13,880 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 06:57:13,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:57:13,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 06:57:13,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:14,712 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 3 proven. 153 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-11-29 06:57:14,712 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:15,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:15,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38052435] [2023-11-29 06:57:15,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:15,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548507809] [2023-11-29 06:57:15,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548507809] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:57:15,081 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:57:15,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-29 06:57:15,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170088144] [2023-11-29 06:57:15,081 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:15,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:57:15,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:15,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:57:15,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:57:15,082 INFO L87 Difference]: Start difference. First operand 3095 states and 3919 transitions. Second operand has 10 states, 8 states have (on average 15.125) internal successors, (121), 9 states have internal predecessors, (121), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:57:16,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:16,741 INFO L93 Difference]: Finished difference Result 3545 states and 4456 transitions. [2023-11-29 06:57:16,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:57:16,741 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 15.125) internal successors, (121), 9 states have internal predecessors, (121), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) Word has length 177 [2023-11-29 06:57:16,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:16,745 INFO L225 Difference]: With dead ends: 3545 [2023-11-29 06:57:16,745 INFO L226 Difference]: Without dead ends: 3543 [2023-11-29 06:57:16,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-11-29 06:57:16,745 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 592 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:16,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 555 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 06:57:16,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2023-11-29 06:57:17,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3157. [2023-11-29 06:57:17,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 2853 states have (on average 1.2099544339291974) internal successors, (3452), 2878 states have internal predecessors, (3452), 272 states have call successors, (272), 6 states have call predecessors, (272), 6 states have return successors, (272), 272 states have call predecessors, (272), 272 states have call successors, (272) [2023-11-29 06:57:17,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 3996 transitions. [2023-11-29 06:57:17,280 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 3996 transitions. Word has length 177 [2023-11-29 06:57:17,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:17,280 INFO L495 AbstractCegarLoop]: Abstraction has 3157 states and 3996 transitions. [2023-11-29 06:57:17,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 15.125) internal successors, (121), 9 states have internal predecessors, (121), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 6 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-29 06:57:17,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 3996 transitions. [2023-11-29 06:57:17,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-29 06:57:17,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:17,282 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:17,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2023-11-29 06:57:17,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:17,482 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:57:17,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:17,483 INFO L85 PathProgramCache]: Analyzing trace with hash 2098988376, now seen corresponding path program 1 times [2023-11-29 06:57:17,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:17,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033669882] [2023-11-29 06:57:17,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:17,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:17,492 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:17,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617193834] [2023-11-29 06:57:17,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:17,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:17,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:17,493 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:17,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2023-11-29 06:57:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:17,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:57:17,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-29 06:57:17,845 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:18,070 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-11-29 06:57:18,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:18,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033669882] [2023-11-29 06:57:18,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:18,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617193834] [2023-11-29 06:57:18,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617193834] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:57:18,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:57:18,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-29 06:57:18,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586290586] [2023-11-29 06:57:18,071 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:18,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 06:57:18,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:18,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 06:57:18,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:57:18,073 INFO L87 Difference]: Start difference. First operand 3157 states and 3996 transitions. Second operand has 14 states, 13 states have (on average 15.23076923076923) internal successors, (198), 14 states have internal predecessors, (198), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 06:57:19,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:19,451 INFO L93 Difference]: Finished difference Result 3254 states and 4065 transitions. [2023-11-29 06:57:19,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 06:57:19,452 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.23076923076923) internal successors, (198), 14 states have internal predecessors, (198), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 188 [2023-11-29 06:57:19,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:19,456 INFO L225 Difference]: With dead ends: 3254 [2023-11-29 06:57:19,456 INFO L226 Difference]: Without dead ends: 3252 [2023-11-29 06:57:19,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=277, Invalid=535, Unknown=0, NotChecked=0, Total=812 [2023-11-29 06:57:19,457 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 515 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:19,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 964 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 06:57:19,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2023-11-29 06:57:20,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 2817. [2023-11-29 06:57:20,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2817 states, 2545 states have (on average 1.1988212180746562) internal successors, (3051), 2570 states have internal predecessors, (3051), 240 states have call successors, (240), 6 states have call predecessors, (240), 6 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2023-11-29 06:57:20,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2817 states to 2817 states and 3531 transitions. [2023-11-29 06:57:20,028 INFO L78 Accepts]: Start accepts. Automaton has 2817 states and 3531 transitions. Word has length 188 [2023-11-29 06:57:20,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:20,028 INFO L495 AbstractCegarLoop]: Abstraction has 2817 states and 3531 transitions. [2023-11-29 06:57:20,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.23076923076923) internal successors, (198), 14 states have internal predecessors, (198), 8 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-11-29 06:57:20,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2817 states and 3531 transitions. [2023-11-29 06:57:20,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-29 06:57:20,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:20,030 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 06:57:20,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2023-11-29 06:57:20,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:20,231 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:57:20,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:20,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1099301916, now seen corresponding path program 1 times [2023-11-29 06:57:20,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:20,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104935126] [2023-11-29 06:57:20,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:20,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:20,242 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:20,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1733521988] [2023-11-29 06:57:20,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:20,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:20,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:20,244 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:20,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2023-11-29 06:57:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:20,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:57:20,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:57:20,769 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:57:21,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:21,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104935126] [2023-11-29 06:57:21,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:21,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733521988] [2023-11-29 06:57:21,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733521988] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:57:21,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:57:21,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:57:21,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151836079] [2023-11-29 06:57:21,041 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:21,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:57:21,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:21,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:57:21,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:57:21,043 INFO L87 Difference]: Start difference. First operand 2817 states and 3531 transitions. Second operand has 10 states, 9 states have (on average 27.0) internal successors, (243), 10 states have internal predecessors, (243), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2023-11-29 06:57:24,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:24,073 INFO L93 Difference]: Finished difference Result 4038 states and 5018 transitions. [2023-11-29 06:57:24,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 06:57:24,074 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 27.0) internal successors, (243), 10 states have internal predecessors, (243), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) Word has length 189 [2023-11-29 06:57:24,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:24,078 INFO L225 Difference]: With dead ends: 4038 [2023-11-29 06:57:24,078 INFO L226 Difference]: Without dead ends: 4036 [2023-11-29 06:57:24,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=158, Unknown=0, NotChecked=0, Total=272 [2023-11-29 06:57:24,080 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 544 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:24,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 674 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 06:57:24,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2023-11-29 06:57:24,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 3639. [2023-11-29 06:57:24,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3639 states, 3290 states have (on average 1.2082066869300911) internal successors, (3975), 3315 states have internal predecessors, (3975), 317 states have call successors, (317), 6 states have call predecessors, (317), 6 states have return successors, (317), 317 states have call predecessors, (317), 317 states have call successors, (317) [2023-11-29 06:57:24,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 4609 transitions. [2023-11-29 06:57:24,774 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 4609 transitions. Word has length 189 [2023-11-29 06:57:24,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:24,774 INFO L495 AbstractCegarLoop]: Abstraction has 3639 states and 4609 transitions. [2023-11-29 06:57:24,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 27.0) internal successors, (243), 10 states have internal predecessors, (243), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2023-11-29 06:57:24,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 4609 transitions. [2023-11-29 06:57:24,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 06:57:24,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:24,776 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:24,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2023-11-29 06:57:24,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:24,977 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:57:24,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:24,977 INFO L85 PathProgramCache]: Analyzing trace with hash 462173930, now seen corresponding path program 1 times [2023-11-29 06:57:24,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:24,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847725328] [2023-11-29 06:57:24,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:24,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:24,988 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:24,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1956496890] [2023-11-29 06:57:24,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:24,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:24,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:24,990 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:24,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2023-11-29 06:57:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:57:25,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 06:57:25,073 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:25,460 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:57:25,461 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:57:25,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:25,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847725328] [2023-11-29 06:57:25,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:25,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956496890] [2023-11-29 06:57:25,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956496890] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 06:57:25,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 06:57:25,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-29 06:57:25,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915574355] [2023-11-29 06:57:25,684 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:25,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 06:57:25,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:25,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 06:57:25,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 06:57:25,686 INFO L87 Difference]: Start difference. First operand 3639 states and 4609 transitions. Second operand has 10 states, 9 states have (on average 27.666666666666668) internal successors, (249), 10 states have internal predecessors, (249), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2023-11-29 06:57:28,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:28,207 INFO L93 Difference]: Finished difference Result 4623 states and 5782 transitions. [2023-11-29 06:57:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 06:57:28,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 27.666666666666668) internal successors, (249), 10 states have internal predecessors, (249), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) Word has length 192 [2023-11-29 06:57:28,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:28,213 INFO L225 Difference]: With dead ends: 4623 [2023-11-29 06:57:28,213 INFO L226 Difference]: Without dead ends: 4621 [2023-11-29 06:57:28,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=138, Unknown=0, NotChecked=0, Total=240 [2023-11-29 06:57:28,214 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 622 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:28,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 800 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 06:57:28,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4621 states. [2023-11-29 06:57:28,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4621 to 4231. [2023-11-29 06:57:28,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4231 states, 3831 states have (on average 1.2062124771600105) internal successors, (4621), 3856 states have internal predecessors, (4621), 368 states have call successors, (368), 6 states have call predecessors, (368), 6 states have return successors, (368), 368 states have call predecessors, (368), 368 states have call successors, (368) [2023-11-29 06:57:28,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4231 states to 4231 states and 5357 transitions. [2023-11-29 06:57:28,991 INFO L78 Accepts]: Start accepts. Automaton has 4231 states and 5357 transitions. Word has length 192 [2023-11-29 06:57:28,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:28,991 INFO L495 AbstractCegarLoop]: Abstraction has 4231 states and 5357 transitions. [2023-11-29 06:57:28,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 27.666666666666668) internal successors, (249), 10 states have internal predecessors, (249), 9 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 9 states have call predecessors, (26), 9 states have call successors, (26) [2023-11-29 06:57:28,992 INFO L276 IsEmpty]: Start isEmpty. Operand 4231 states and 5357 transitions. [2023-11-29 06:57:28,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:57:28,993 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:28,994 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:29,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2023-11-29 06:57:29,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2023-11-29 06:57:29,194 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:57:29,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:29,194 INFO L85 PathProgramCache]: Analyzing trace with hash 934397047, now seen corresponding path program 8 times [2023-11-29 06:57:29,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:29,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917547821] [2023-11-29 06:57:29,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:29,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:29,204 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:29,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686861142] [2023-11-29 06:57:29,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 06:57:29,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:29,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:29,206 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:29,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2023-11-29 06:57:29,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 06:57:29,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:57:29,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 06:57:29,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:57:30,163 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 0 proven. 204 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-11-29 06:57:30,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 06:57:30,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:57:30,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917547821] [2023-11-29 06:57:30,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:57:30,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686861142] [2023-11-29 06:57:30,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686861142] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 06:57:30,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 06:57:30,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-29 06:57:30,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397009969] [2023-11-29 06:57:30,412 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 06:57:30,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:57:30,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:57:30,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:57:30,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 06:57:30,413 INFO L87 Difference]: Start difference. First operand 4231 states and 5357 transitions. Second operand has 8 states, 7 states have (on average 19.142857142857142) internal successors, (134), 8 states have internal predecessors, (134), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:57:32,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:57:32,025 INFO L93 Difference]: Finished difference Result 4254 states and 5371 transitions. [2023-11-29 06:57:32,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 06:57:32,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.142857142857142) internal successors, (134), 8 states have internal predecessors, (134), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 198 [2023-11-29 06:57:32,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:57:32,030 INFO L225 Difference]: With dead ends: 4254 [2023-11-29 06:57:32,030 INFO L226 Difference]: Without dead ends: 4253 [2023-11-29 06:57:32,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 06:57:32,031 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 118 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 06:57:32,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 694 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 06:57:32,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2023-11-29 06:57:32,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4231. [2023-11-29 06:57:32,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4231 states, 3831 states have (on average 1.2059514487079093) internal successors, (4620), 3856 states have internal predecessors, (4620), 368 states have call successors, (368), 6 states have call predecessors, (368), 6 states have return successors, (368), 368 states have call predecessors, (368), 368 states have call successors, (368) [2023-11-29 06:57:32,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4231 states to 4231 states and 5356 transitions. [2023-11-29 06:57:32,892 INFO L78 Accepts]: Start accepts. Automaton has 4231 states and 5356 transitions. Word has length 198 [2023-11-29 06:57:32,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:57:32,892 INFO L495 AbstractCegarLoop]: Abstraction has 4231 states and 5356 transitions. [2023-11-29 06:57:32,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.142857142857142) internal successors, (134), 8 states have internal predecessors, (134), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 06:57:32,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4231 states and 5356 transitions. [2023-11-29 06:57:32,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-11-29 06:57:32,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:57:32,894 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:57:32,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2023-11-29 06:57:33,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2023-11-29 06:57:33,095 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2023-11-29 06:57:33,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:57:33,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1851481047, now seen corresponding path program 9 times [2023-11-29 06:57:33,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:57:33,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463775363] [2023-11-29 06:57:33,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:57:33,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:57:33,104 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:57:33,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323542261] [2023-11-29 06:57:33,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 06:57:33,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:57:33,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:57:33,106 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:57:33,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34d96c31-3ccc-4737-9109-5453b2d0a18c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2023-11-29 06:57:34,075 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 06:57:34,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 06:57:34,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-29 06:57:34,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:58:23,384 WARN L293 SmtUtils]: Spent 7.09s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:59:09,883 WARN L293 SmtUtils]: Spent 5.60s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 06:59:17,761 WARN L293 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 06:59:57,053 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 60 proven. 174 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-29 06:59:57,053 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:00:22,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:00:22,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463775363] [2023-11-29 07:00:22,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 07:00:22,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323542261] [2023-11-29 07:00:22,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323542261] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:00:22,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 07:00:22,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2023-11-29 07:00:22,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462489615] [2023-11-29 07:00:22,528 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 07:00:22,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 07:00:22,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:00:22,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 07:00:22,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=514, Unknown=4, NotChecked=0, Total=600 [2023-11-29 07:00:22,530 INFO L87 Difference]: Start difference. First operand 4231 states and 5356 transitions. Second operand has 21 states, 19 states have (on average 6.157894736842105) internal successors, (117), 20 states have internal predecessors, (117), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-29 07:00:28,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:45,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:47,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:00:50,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:55,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:00:59,634 WARN L539 Checker$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 07:01:04,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:08,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:11,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:01:13,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:15,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:18,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:22,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:24,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:31,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:33,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:37,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:41,662 WARN L539 Checker$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 07:01:46,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:48,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:01:50,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:01:54,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:01:58,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:02:00,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:02:04,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:02:28,764 WARN L293 SmtUtils]: Spent 7.90s on a formula simplification. DAG size of input: 43 DAG size of output: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:02:34,627 WARN L539 Checker$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 07:02:41,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:02:46,251 WARN L539 Checker$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 07:03:27,403 WARN L293 SmtUtils]: Spent 27.86s on a formula simplification. DAG size of input: 53 DAG size of output: 65 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:03:29,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:34,035 WARN L539 Checker$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 07:03:39,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:42,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:43,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:45,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:47,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:48,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:50,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:03:55,631 WARN L539 Checker$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 07:03:58,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:03,538 WARN L539 Checker$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 07:04:04,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:07,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:09,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:10,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:15,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:18,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:25,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:27,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:28,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:49,325 WARN L293 SmtUtils]: Spent 10.98s on a formula simplification. DAG size of input: 42 DAG size of output: 47 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 07:04:51,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:04:55,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:05:01,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:05:05,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:05:08,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:05:10,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:05:12,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2023-11-29 07:05:15,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-29 07:05:17,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]