./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx --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 d2bc2a3f53718ecf47344b6d9b2d76a5698712f748ff03cd831a90a334f72c9d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:08:31,087 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:08:31,207 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:08:31,219 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:08:31,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:08:31,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:08:31,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:08:31,258 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:08:31,259 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:08:31,263 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:08:31,264 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:08:31,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:08:31,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:08:31,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:08:31,268 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:08:31,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:08:31,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:08:31,269 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:08:31,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:08:31,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:08:31,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:08:31,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:08:31,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:08:31,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:08:31,273 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:08:31,273 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:08:31,274 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:08:31,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:08:31,275 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:08:31,276 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:08:31,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:08:31,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:08:31,277 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:08:31,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:31,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:08:31,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:08:31,301 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:08:31,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:08:31,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:08:31,302 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:08:31,302 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:08:31,303 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:08:31,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:08:31,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:08:31,303 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_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2bc2a3f53718ecf47344b6d9b2d76a5698712f748ff03cd831a90a334f72c9d [2023-11-21 22:08:31,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:08:31,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:08:31,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:08:31,598 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:08:31,609 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:08:31,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c [2023-11-21 22:08:34,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:08:34,844 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:08:34,845 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound2.c [2023-11-21 22:08:34,854 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/data/595f95780/7af3f13296d64176977e6df194ecb243/FLAG72f68e4a6 [2023-11-21 22:08:34,870 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/data/595f95780/7af3f13296d64176977e6df194ecb243 [2023-11-21 22:08:34,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:08:34,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:08:34,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:34,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:08:34,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:08:34,890 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:34" (1/1) ... [2023-11-21 22:08:34,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c7a520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:34, skipping insertion in model container [2023-11-21 22:08:34,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:08:34" (1/1) ... [2023-11-21 22:08:34,918 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:08:35,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:35,236 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:08:35,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:08:35,283 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:08:35,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35 WrapperNode [2023-11-21 22:08:35,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:08:35,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:35,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:08:35,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:08:35,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,311 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,344 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2023-11-21 22:08:35,344 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:08:35,345 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:08:35,345 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:08:35,345 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:08:35,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,361 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,379 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:08:35,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,392 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:08:35,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:08:35,411 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:08:35,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:08:35,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (1/1) ... [2023-11-21 22:08:35,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:08:35,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:35,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:08:35,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:08:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:08:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:08:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:08:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:08:35,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:08:35,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:08:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:08:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:08:35,570 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:08:35,575 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:08:35,827 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:08:35,882 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:08:35,883 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:08:35,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:35 BoogieIcfgContainer [2023-11-21 22:08:35,885 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:08:35,888 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:08:35,890 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:08:35,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:08:35,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:08:34" (1/3) ... [2023-11-21 22:08:35,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d75f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:35, skipping insertion in model container [2023-11-21 22:08:35,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:08:35" (2/3) ... [2023-11-21 22:08:35,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d75f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:08:35, skipping insertion in model container [2023-11-21 22:08:35,897 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:35" (3/3) ... [2023-11-21 22:08:35,900 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound2.c [2023-11-21 22:08:35,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:08:35,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-21 22:08:35,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:08:35,994 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;@6cfa0738, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:08:35,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-21 22:08:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 25 states have (on average 1.76) internal successors, (44), 41 states have internal predecessors, (44), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:08:36,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 22:08:36,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:36,009 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:36,010 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:36,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:36,021 INFO L85 PathProgramCache]: Analyzing trace with hash 942087750, now seen corresponding path program 1 times [2023-11-21 22:08:36,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:36,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478218736] [2023-11-21 22:08:36,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:36,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:36,188 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:36,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [162399385] [2023-11-21 22:08:36,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:36,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:36,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:36,192 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:36,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:08:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:36,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 22:08:36,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:36,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:08:36,522 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:36,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:36,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478218736] [2023-11-21 22:08:36,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:36,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162399385] [2023-11-21 22:08:36,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162399385] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:36,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:36,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-21 22:08:36,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705196589] [2023-11-21 22:08:36,840 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:36,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:08:36,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:36,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:08:36,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:08:36,878 INFO L87 Difference]: Start difference. First operand has 49 states, 25 states have (on average 1.76) internal successors, (44), 41 states have internal predecessors, (44), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:08:37,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:37,099 INFO L93 Difference]: Finished difference Result 88 states and 98 transitions. [2023-11-21 22:08:37,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:08:37,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 14 [2023-11-21 22:08:37,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:37,113 INFO L225 Difference]: With dead ends: 88 [2023-11-21 22:08:37,113 INFO L226 Difference]: Without dead ends: 71 [2023-11-21 22:08:37,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:08:37,119 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 149 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:37,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 39 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:08:37,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-21 22:08:37,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 60. [2023-11-21 22:08:37,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 52 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:08:37,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2023-11-21 22:08:37,168 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 14 [2023-11-21 22:08:37,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:37,169 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2023-11-21 22:08:37,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:08:37,170 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2023-11-21 22:08:37,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 22:08:37,171 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:37,172 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:37,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:37,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 22:08:37,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:37,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:37,393 INFO L85 PathProgramCache]: Analyzing trace with hash -860050772, now seen corresponding path program 1 times [2023-11-21 22:08:37,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:37,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015791685] [2023-11-21 22:08:37,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:37,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:37,412 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:37,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1101698236] [2023-11-21 22:08:37,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:37,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:37,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:37,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:37,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:08:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:37,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-21 22:08:37,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:37,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:37,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:37,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015791685] [2023-11-21 22:08:37,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:37,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101698236] [2023-11-21 22:08:37,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101698236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:37,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:37,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:08:37,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391049205] [2023-11-21 22:08:37,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:37,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:08:37,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:37,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:08:37,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:08:37,612 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand has 7 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:08:37,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:37,750 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2023-11-21 22:08:37,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:08:37,751 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2023-11-21 22:08:37,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:37,752 INFO L225 Difference]: With dead ends: 68 [2023-11-21 22:08:37,752 INFO L226 Difference]: Without dead ends: 61 [2023-11-21 22:08:37,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:08:37,754 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 122 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:37,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 44 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:08:37,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-21 22:08:37,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 57. [2023-11-21 22:08:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.4736842105263157) internal successors, (56), 49 states have internal predecessors, (56), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:08:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 66 transitions. [2023-11-21 22:08:37,767 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 66 transitions. Word has length 15 [2023-11-21 22:08:37,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:37,767 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 66 transitions. [2023-11-21 22:08:37,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:08:37,768 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2023-11-21 22:08:37,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 22:08:37,769 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:37,769 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:37,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:37,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:37,983 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:37,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:37,984 INFO L85 PathProgramCache]: Analyzing trace with hash -891770104, now seen corresponding path program 1 times [2023-11-21 22:08:37,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:37,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163388642] [2023-11-21 22:08:37,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:37,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:37,999 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:38,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425288208] [2023-11-21 22:08:38,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:38,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:38,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:38,001 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:38,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:08:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:38,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:38,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:38,100 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:38,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:38,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:38,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163388642] [2023-11-21 22:08:38,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:38,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425288208] [2023-11-21 22:08:38,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425288208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:38,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:38,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:38,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587546652] [2023-11-21 22:08:38,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:38,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:38,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:38,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:38,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:38,106 INFO L87 Difference]: Start difference. First operand 57 states and 66 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:08:38,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:38,225 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2023-11-21 22:08:38,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:38,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2023-11-21 22:08:38,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:38,228 INFO L225 Difference]: With dead ends: 83 [2023-11-21 22:08:38,229 INFO L226 Difference]: Without dead ends: 82 [2023-11-21 22:08:38,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:38,230 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 36 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:38,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 59 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:08:38,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-21 22:08:38,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 71. [2023-11-21 22:08:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.4901960784313726) internal successors, (76), 62 states have internal predecessors, (76), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:08:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2023-11-21 22:08:38,249 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 16 [2023-11-21 22:08:38,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:38,250 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2023-11-21 22:08:38,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:08:38,251 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2023-11-21 22:08:38,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 22:08:38,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:38,251 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:38,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:38,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:38,460 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:38,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1875069394, now seen corresponding path program 1 times [2023-11-21 22:08:38,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:38,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804469715] [2023-11-21 22:08:38,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:38,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:38,474 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:38,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040196605] [2023-11-21 22:08:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:38,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:38,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:38,476 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:38,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:08:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:38,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:38,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:38,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:38,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:38,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804469715] [2023-11-21 22:08:38,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:38,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040196605] [2023-11-21 22:08:38,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040196605] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:38,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:38,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:38,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081136081] [2023-11-21 22:08:38,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:38,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:38,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:38,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:38,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:38,556 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:08:38,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:38,614 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2023-11-21 22:08:38,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:38,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 17 [2023-11-21 22:08:38,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:38,620 INFO L225 Difference]: With dead ends: 82 [2023-11-21 22:08:38,620 INFO L226 Difference]: Without dead ends: 81 [2023-11-21 22:08:38,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:38,625 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 31 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:38,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 62 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:08:38,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-21 22:08:38,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 71. [2023-11-21 22:08:38,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 62 states have internal predecessors, (74), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:08:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2023-11-21 22:08:38,647 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 17 [2023-11-21 22:08:38,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:38,648 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2023-11-21 22:08:38,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:08:38,648 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2023-11-21 22:08:38,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 22:08:38,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:38,650 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:38,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-21 22:08:38,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:38,871 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:38,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:38,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1914357059, now seen corresponding path program 1 times [2023-11-21 22:08:38,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:38,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971115883] [2023-11-21 22:08:38,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:38,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:38,888 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:38,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378251702] [2023-11-21 22:08:38,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:38,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:38,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:38,905 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:38,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:08:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:38,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:08:38,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:39,062 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:39,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:39,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:39,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971115883] [2023-11-21 22:08:39,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:39,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378251702] [2023-11-21 22:08:39,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378251702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:39,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:39,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:39,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819733596] [2023-11-21 22:08:39,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:39,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:39,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:39,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:39,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:39,066 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-21 22:08:39,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:39,155 INFO L93 Difference]: Finished difference Result 73 states and 86 transitions. [2023-11-21 22:08:39,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:39,156 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), 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 25 [2023-11-21 22:08:39,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:39,157 INFO L225 Difference]: With dead ends: 73 [2023-11-21 22:08:39,157 INFO L226 Difference]: Without dead ends: 72 [2023-11-21 22:08:39,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:39,158 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 50 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:39,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 53 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:08:39,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-21 22:08:39,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2023-11-21 22:08:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 62 states have internal predecessors, (73), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:08:39,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 85 transitions. [2023-11-21 22:08:39,168 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 85 transitions. Word has length 25 [2023-11-21 22:08:39,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:39,169 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 85 transitions. [2023-11-21 22:08:39,169 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), 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) [2023-11-21 22:08:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 85 transitions. [2023-11-21 22:08:39,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-21 22:08:39,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:39,170 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:39,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:39,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:39,391 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:39,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:39,392 INFO L85 PathProgramCache]: Analyzing trace with hash -784473244, now seen corresponding path program 1 times [2023-11-21 22:08:39,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:39,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474733863] [2023-11-21 22:08:39,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:39,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:39,408 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:39,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446602046] [2023-11-21 22:08:39,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:39,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:39,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:39,410 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:39,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:08:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:39,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:08:39,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:39,538 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:39,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:39,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:39,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474733863] [2023-11-21 22:08:39,539 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:39,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446602046] [2023-11-21 22:08:39,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446602046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:39,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:39,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:39,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385344294] [2023-11-21 22:08:39,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:39,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:39,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:39,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:39,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:39,542 INFO L87 Difference]: Start difference. First operand 71 states and 85 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-21 22:08:39,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:39,597 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2023-11-21 22:08:39,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:39,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 26 [2023-11-21 22:08:39,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:39,598 INFO L225 Difference]: With dead ends: 72 [2023-11-21 22:08:39,599 INFO L226 Difference]: Without dead ends: 71 [2023-11-21 22:08:39,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:39,600 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 47 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:39,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 54 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:08:39,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-21 22:08:39,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-21 22:08:39,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 51 states have (on average 1.411764705882353) internal successors, (72), 62 states have internal predecessors, (72), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:08:39,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2023-11-21 22:08:39,624 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 26 [2023-11-21 22:08:39,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:39,625 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2023-11-21 22:08:39,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-21 22:08:39,626 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2023-11-21 22:08:39,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 22:08:39,627 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:39,628 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:39,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:39,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-21 22:08:39,834 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:39,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:39,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2045032784, now seen corresponding path program 1 times [2023-11-21 22:08:39,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:39,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629590009] [2023-11-21 22:08:39,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:39,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:39,860 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:39,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928871387] [2023-11-21 22:08:39,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:39,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:39,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:39,862 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:39,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 22:08:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:39,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:08:39,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:39,972 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:39,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:39,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:39,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629590009] [2023-11-21 22:08:39,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:39,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928871387] [2023-11-21 22:08:39,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928871387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:39,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:39,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:39,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651927301] [2023-11-21 22:08:39,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:39,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:39,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:39,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:39,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:39,977 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-21 22:08:40,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:40,033 INFO L93 Difference]: Finished difference Result 71 states and 84 transitions. [2023-11-21 22:08:40,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:40,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 28 [2023-11-21 22:08:40,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:40,040 INFO L225 Difference]: With dead ends: 71 [2023-11-21 22:08:40,041 INFO L226 Difference]: Without dead ends: 69 [2023-11-21 22:08:40,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:40,042 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 43 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:40,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 31 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:08:40,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-21 22:08:40,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2023-11-21 22:08:40,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 50 states have (on average 1.36) internal successors, (68), 59 states have internal predecessors, (68), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:08:40,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2023-11-21 22:08:40,059 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 28 [2023-11-21 22:08:40,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:40,061 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2023-11-21 22:08:40,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-21 22:08:40,062 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2023-11-21 22:08:40,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:08:40,063 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:40,063 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:40,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:40,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-21 22:08:40,279 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:40,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:40,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1325281910, now seen corresponding path program 1 times [2023-11-21 22:08:40,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:40,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179210635] [2023-11-21 22:08:40,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:40,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:40,293 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:40,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1229023544] [2023-11-21 22:08:40,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:40,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:40,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:40,294 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:40,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 22:08:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:40,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:40,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:40,397 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:40,397 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:40,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:40,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179210635] [2023-11-21 22:08:40,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:40,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229023544] [2023-11-21 22:08:40,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229023544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:40,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:40,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:40,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478477024] [2023-11-21 22:08:40,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:40,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:40,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:40,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:40,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:40,400 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2023-11-21 22:08:40,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:40,455 INFO L93 Difference]: Finished difference Result 72 states and 85 transitions. [2023-11-21 22:08:40,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:40,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 29 [2023-11-21 22:08:40,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:40,456 INFO L225 Difference]: With dead ends: 72 [2023-11-21 22:08:40,457 INFO L226 Difference]: Without dead ends: 71 [2023-11-21 22:08:40,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:40,458 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 49 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:40,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 49 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:08:40,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-21 22:08:40,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2023-11-21 22:08:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 61 states have internal predecessors, (70), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:08:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2023-11-21 22:08:40,467 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 29 [2023-11-21 22:08:40,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:40,468 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2023-11-21 22:08:40,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2023-11-21 22:08:40,468 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2023-11-21 22:08:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 22:08:40,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:40,469 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:40,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:40,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:40,679 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:40,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:40,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1865933832, now seen corresponding path program 1 times [2023-11-21 22:08:40,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:40,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228251869] [2023-11-21 22:08:40,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:40,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:40,692 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:40,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [574030790] [2023-11-21 22:08:40,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:40,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:40,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:40,694 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:40,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 22:08:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:40,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:08:40,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:40,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:08:40,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:40,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:40,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228251869] [2023-11-21 22:08:40,829 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:40,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574030790] [2023-11-21 22:08:40,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574030790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:40,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:40,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:08:40,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714571936] [2023-11-21 22:08:40,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:40,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:08:40,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:40,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:08:40,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:08:40,835 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-21 22:08:40,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:40,890 INFO L93 Difference]: Finished difference Result 72 states and 84 transitions. [2023-11-21 22:08:40,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:08:40,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 30 [2023-11-21 22:08:40,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:40,892 INFO L225 Difference]: With dead ends: 72 [2023-11-21 22:08:40,892 INFO L226 Difference]: Without dead ends: 71 [2023-11-21 22:08:40,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:08:40,895 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 46 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:40,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 50 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:08:40,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-11-21 22:08:40,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2023-11-21 22:08:40,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 62 states have internal predecessors, (71), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:08:40,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 83 transitions. [2023-11-21 22:08:40,911 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 83 transitions. Word has length 30 [2023-11-21 22:08:40,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:40,912 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 83 transitions. [2023-11-21 22:08:40,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-21 22:08:40,914 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 83 transitions. [2023-11-21 22:08:40,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-21 22:08:40,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:40,922 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:40,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:41,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:41,143 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:41,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:41,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1818514670, now seen corresponding path program 1 times [2023-11-21 22:08:41,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:41,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630036734] [2023-11-21 22:08:41,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:41,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:41,157 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:41,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228796296] [2023-11-21 22:08:41,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:41,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:41,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:41,159 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:41,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 22:08:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:41,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-21 22:08:41,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:41,448 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:08:41,449 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:43,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:43,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630036734] [2023-11-21 22:08:43,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:43,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228796296] [2023-11-21 22:08:43,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228796296] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:43,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:43,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-21 22:08:43,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537976211] [2023-11-21 22:08:43,530 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:43,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 22:08:43,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:43,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 22:08:43,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:08:43,532 INFO L87 Difference]: Start difference. First operand 71 states and 83 transitions. Second operand has 9 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:08:43,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:43,767 INFO L93 Difference]: Finished difference Result 87 states and 104 transitions. [2023-11-21 22:08:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:08:43,771 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 30 [2023-11-21 22:08:43,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:43,772 INFO L225 Difference]: With dead ends: 87 [2023-11-21 22:08:43,772 INFO L226 Difference]: Without dead ends: 83 [2023-11-21 22:08:43,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2023-11-21 22:08:43,774 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 54 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:43,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 48 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:08:43,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-21 22:08:43,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 66. [2023-11-21 22:08:43,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 52 states have (on average 1.2115384615384615) internal successors, (63), 57 states have internal predecessors, (63), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:08:43,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2023-11-21 22:08:43,786 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 30 [2023-11-21 22:08:43,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:43,789 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2023-11-21 22:08:43,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:08:43,789 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2023-11-21 22:08:43,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 22:08:43,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:43,791 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:43,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:44,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:44,007 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:44,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash -539379872, now seen corresponding path program 1 times [2023-11-21 22:08:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:44,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649195929] [2023-11-21 22:08:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:44,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:44,034 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:44,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1474125775] [2023-11-21 22:08:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:44,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:44,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:44,036 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:44,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-21 22:08:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:44,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-21 22:08:44,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:44,363 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:08:44,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:44,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:44,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649195929] [2023-11-21 22:08:44,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:44,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474125775] [2023-11-21 22:08:44,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474125775] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:44,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:44,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-21 22:08:44,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951554198] [2023-11-21 22:08:44,974 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:44,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:08:44,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:44,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:08:44,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:08:44,976 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand has 10 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:08:45,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:45,323 INFO L93 Difference]: Finished difference Result 127 states and 143 transitions. [2023-11-21 22:08:45,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:08:45,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 31 [2023-11-21 22:08:45,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:45,325 INFO L225 Difference]: With dead ends: 127 [2023-11-21 22:08:45,325 INFO L226 Difference]: Without dead ends: 87 [2023-11-21 22:08:45,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2023-11-21 22:08:45,326 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 113 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:45,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 46 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:08:45,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-21 22:08:45,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 73. [2023-11-21 22:08:45,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 64 states have internal predecessors, (70), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-21 22:08:45,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 82 transitions. [2023-11-21 22:08:45,335 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 82 transitions. Word has length 31 [2023-11-21 22:08:45,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:45,335 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 82 transitions. [2023-11-21 22:08:45,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:08:45,336 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 82 transitions. [2023-11-21 22:08:45,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-21 22:08:45,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:45,336 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:45,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:45,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:45,551 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:45,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:45,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1635458586, now seen corresponding path program 1 times [2023-11-21 22:08:45,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:45,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543047733] [2023-11-21 22:08:45,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:45,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:45,583 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:45,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523013866] [2023-11-21 22:08:45,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:45,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:45,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:45,595 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:45,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-21 22:08:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:45,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-21 22:08:45,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:08:46,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:49,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:49,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543047733] [2023-11-21 22:08:49,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:49,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523013866] [2023-11-21 22:08:49,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523013866] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:08:49,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:08:49,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-11-21 22:08:49,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631272903] [2023-11-21 22:08:49,735 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:49,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:08:49,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:49,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:08:49,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-11-21 22:08:49,737 INFO L87 Difference]: Start difference. First operand 73 states and 82 transitions. Second operand has 10 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:08:50,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:50,013 INFO L93 Difference]: Finished difference Result 102 states and 113 transitions. [2023-11-21 22:08:50,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:08:50,014 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 35 [2023-11-21 22:08:50,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:50,015 INFO L225 Difference]: With dead ends: 102 [2023-11-21 22:08:50,015 INFO L226 Difference]: Without dead ends: 58 [2023-11-21 22:08:50,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2023-11-21 22:08:50,017 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 50 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:50,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 48 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:08:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-21 22:08:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-21 22:08:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.108695652173913) internal successors, (51), 50 states have internal predecessors, (51), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:08:50,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2023-11-21 22:08:50,024 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 35 [2023-11-21 22:08:50,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:50,024 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2023-11-21 22:08:50,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 22:08:50,025 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2023-11-21 22:08:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-21 22:08:50,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:50,026 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:08:50,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:50,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:50,226 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:50,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:50,227 INFO L85 PathProgramCache]: Analyzing trace with hash 840391438, now seen corresponding path program 1 times [2023-11-21 22:08:50,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:50,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749093308] [2023-11-21 22:08:50,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:50,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:50,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:50,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [608442097] [2023-11-21 22:08:50,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:50,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:50,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:50,242 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:50,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 22:08:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:50,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 22:08:50,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:50,409 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:08:50,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:08:50,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:50,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749093308] [2023-11-21 22:08:50,570 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:50,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608442097] [2023-11-21 22:08:50,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608442097] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:50,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:08:50,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-21 22:08:50,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422796770] [2023-11-21 22:08:50,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:50,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:08:50,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:50,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:08:50,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:08:50,573 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-21 22:08:50,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:50,694 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2023-11-21 22:08:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:08:50,695 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 36 [2023-11-21 22:08:50,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:50,696 INFO L225 Difference]: With dead ends: 58 [2023-11-21 22:08:50,696 INFO L226 Difference]: Without dead ends: 56 [2023-11-21 22:08:50,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:08:50,697 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 46 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:50,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 45 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:08:50,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-21 22:08:50,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-21 22:08:50,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.065217391304348) internal successors, (49), 48 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:08:50,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2023-11-21 22:08:50,703 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 36 [2023-11-21 22:08:50,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:50,704 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2023-11-21 22:08:50,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.375) internal successors, (43), 10 states have internal predecessors, (43), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2023-11-21 22:08:50,704 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2023-11-21 22:08:50,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-21 22:08:50,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:50,705 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:08:50,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:50,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:50,906 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:08:50,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:50,906 INFO L85 PathProgramCache]: Analyzing trace with hash 282330856, now seen corresponding path program 1 times [2023-11-21 22:08:50,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:08:50,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486490589] [2023-11-21 22:08:50,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:50,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:08:50,916 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:08:50,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681970252] [2023-11-21 22:08:50,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:50,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:08:50,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:08:50,918 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:08:50,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-21 22:08:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:50,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-21 22:08:50,978 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:51,483 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:08:51,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:56,247 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:08:56,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:08:56,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486490589] [2023-11-21 22:08:56,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:08:56,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681970252] [2023-11-21 22:08:56,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681970252] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:56,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:08:56,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2023-11-21 22:08:56,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573704308] [2023-11-21 22:08:56,249 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:56,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-21 22:08:56,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:08:56,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-21 22:08:56,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=289, Unknown=1, NotChecked=0, Total=380 [2023-11-21 22:08:56,252 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-21 22:08:59,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:09:04,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:09:06,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:09:09,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-21 22:09:09,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:09:09,180 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2023-11-21 22:09:09,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-21 22:09:09,181 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 37 [2023-11-21 22:09:09,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:09:09,182 INFO L225 Difference]: With dead ends: 63 [2023-11-21 22:09:09,182 INFO L226 Difference]: Without dead ends: 42 [2023-11-21 22:09:09,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=293, Invalid=762, Unknown=1, NotChecked=0, Total=1056 [2023-11-21 22:09:09,183 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 75 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:09:09,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 77 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 304 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2023-11-21 22:09:09,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-11-21 22:09:09,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-11-21 22:09:09,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 34 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:09:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2023-11-21 22:09:09,189 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 37 [2023-11-21 22:09:09,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:09:09,189 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2023-11-21 22:09:09,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2023-11-21 22:09:09,190 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2023-11-21 22:09:09,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-21 22:09:09,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:09:09,190 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:09:09,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-21 22:09:09,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:09:09,403 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:09:09,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:09,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1453956656, now seen corresponding path program 1 times [2023-11-21 22:09:09,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:09,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080175577] [2023-11-21 22:09:09,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:09,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:09,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:09:09,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91326933] [2023-11-21 22:09:09,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:09,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:09:09,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:09,422 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:09:09,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-21 22:09:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:09,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:09:09,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:09:09,573 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 22:09:09,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:09:09,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:09,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080175577] [2023-11-21 22:09:09,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:09:09,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91326933] [2023-11-21 22:09:09,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91326933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:09,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:09,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:09:09,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615820] [2023-11-21 22:09:09,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:09,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:09:09,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:09,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:09:09,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:09:09,577 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-21 22:09:09,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:09:09,614 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2023-11-21 22:09:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:09:09,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 42 [2023-11-21 22:09:09,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:09:09,615 INFO L225 Difference]: With dead ends: 42 [2023-11-21 22:09:09,616 INFO L226 Difference]: Without dead ends: 41 [2023-11-21 22:09:09,616 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 [2023-11-21 22:09:09,617 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:09:09,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:09:09,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-21 22:09:09,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-21 22:09:09,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.0) internal successors, (33), 33 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:09:09,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2023-11-21 22:09:09,623 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 42 [2023-11-21 22:09:09,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:09:09,624 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2023-11-21 22:09:09,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-21 22:09:09,625 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2023-11-21 22:09:09,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 22:09:09,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:09:09,625 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:09:09,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-21 22:09:09,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:09:09,839 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-21 22:09:09,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:09,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1888397100, now seen corresponding path program 1 times [2023-11-21 22:09:09,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:09,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316819608] [2023-11-21 22:09:09,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:09,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:09,850 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:09:09,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157104174] [2023-11-21 22:09:09,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:09,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:09:09,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:09,853 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:09:09,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-21 22:09:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:09,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:09:09,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:09:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 22:09:10,007 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:09:10,115 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 22:09:10,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:10,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316819608] [2023-11-21 22:09:10,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:09:10,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157104174] [2023-11-21 22:09:10,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157104174] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:09:10,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:09:10,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-21 22:09:10,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273140211] [2023-11-21 22:09:10,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:09:10,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:09:10,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:10,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:09:10,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:09:10,119 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-21 22:09:10,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:09:10,178 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2023-11-21 22:09:10,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:09:10,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 46 [2023-11-21 22:09:10,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:09:10,179 INFO L225 Difference]: With dead ends: 41 [2023-11-21 22:09:10,179 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:09:10,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:09:10,181 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 28 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:09:10,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 48 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:09:10,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:09:10,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:09:10,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:09:10,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:09:10,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2023-11-21 22:09:10,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:09:10,183 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:09:10,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2023-11-21 22:09:10,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:09:10,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:09:10,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-21 22:09:10,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-21 22:09:10,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-21 22:09:10,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-21 22:09:10,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-11-21 22:09:10,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-11-21 22:09:10,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-11-21 22:09:10,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-11-21 22:09:10,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-21 22:09:10,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-21 22:09:10,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-21 22:09:10,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-21 22:09:10,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-21 22:09:10,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-21 22:09:10,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-21 22:09:10,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-21 22:09:10,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-21 22:09:10,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-21 22:09:10,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 22:09:10,812 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,813 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,813 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,813 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,813 INFO L899 garLoopResultBuilder]: For program point L35-5(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,813 INFO L895 garLoopResultBuilder]: At program point L35-6(line 35) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~a~0#1| 2)) (.cse2 (<= |ULTIMATE.start_main_~b~0#1| 2)) (.cse3 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse4 (= |ULTIMATE.start_main_~z~0#1| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~a~0#1|))) (or (and (<= |ULTIMATE.start_main_~x~0#1| 4294967294) .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~y~0#1| 1) .cse4 .cse5) (let ((.cse6 (div |ULTIMATE.start_main_~x~0#1| 2))) (and .cse1 (<= 1 (mod (+ |ULTIMATE.start_main_~y~0#1| 1) 2)) (<= 0 |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) (<= |ULTIMATE.start_main_~y~0#1| 1) .cse5 (<= .cse6 4611686018427387903) (<= 0 .cse6))) (and .cse0 (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 1 |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2 .cse3 .cse4 .cse5 (<= |ULTIMATE.start_main_~x~0#1| 2)))) [2023-11-21 22:09:10,814 INFO L899 garLoopResultBuilder]: For program point L35-7(lines 34 45) no Hoare annotation was computed. [2023-11-21 22:09:10,814 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~a~0#1| 2) (<= |ULTIMATE.start_main_~b~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~a~0#1|)) [2023-11-21 22:09:10,814 INFO L895 garLoopResultBuilder]: At program point L27-1(line 27) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~a~0#1| 2) (<= |ULTIMATE.start_main_~b~0#1| 2) (<= 0 |ULTIMATE.start_main_~a~0#1|)) [2023-11-21 22:09:10,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:09:10,815 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2023-11-21 22:09:10,815 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-21 22:09:10,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-21 22:09:10,815 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-11-21 22:09:10,815 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-21 22:09:10,815 INFO L899 garLoopResultBuilder]: For program point L40-1(line 40) no Hoare annotation was computed. [2023-11-21 22:09:10,816 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,816 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,816 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-11-21 22:09:10,816 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-21 22:09:10,817 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-21 22:09:10,817 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2023-11-21 22:09:10,817 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-21 22:09:10,817 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,817 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:09:10,818 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,818 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 2147483648)) (<= |ULTIMATE.start_main_~a~0#1| 2147483647)) [2023-11-21 22:09:10,818 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-11-21 22:09:10,818 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2023-11-21 22:09:10,819 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-21 22:09:10,819 INFO L895 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~a~0#1| 2) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= 0 |ULTIMATE.start_main_~a~0#1|)) [2023-11-21 22:09:10,819 INFO L899 garLoopResultBuilder]: For program point L46-2(line 46) no Hoare annotation was computed. [2023-11-21 22:09:10,819 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 41) no Hoare annotation was computed. [2023-11-21 22:09:10,819 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 22:09:10,820 INFO L895 garLoopResultBuilder]: At program point L34-2(lines 34 45) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~x~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~a~0#1| 2)) (.cse2 (<= |ULTIMATE.start_main_~b~0#1| 2)) (.cse3 (<= 1 |ULTIMATE.start_main_~b~0#1|)) (.cse4 (= |ULTIMATE.start_main_~z~0#1| 0)) (.cse5 (<= 0 |ULTIMATE.start_main_~a~0#1|))) (or (and (<= |ULTIMATE.start_main_~x~0#1| 4294967294) .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~y~0#1| 1) .cse4 .cse5) (let ((.cse6 (div |ULTIMATE.start_main_~x~0#1| 2))) (and .cse1 (<= 1 (mod (+ |ULTIMATE.start_main_~y~0#1| 1) 2)) (<= 0 |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 (= (mod |ULTIMATE.start_main_~x~0#1| 2) 0) (<= |ULTIMATE.start_main_~y~0#1| 1) (< (+ |ULTIMATE.start_main_~z~0#1| (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|)) 9223372036854775808) .cse5 (<= .cse6 4611686018427387903) (<= 0 .cse6) (<= 0 |ULTIMATE.start_main_~z~0#1|))) (and .cse0 (<= |ULTIMATE.start_main_~y~0#1| 2) (<= 1 |ULTIMATE.start_main_~y~0#1|) .cse1 .cse2 .cse3 .cse4 .cse5 (<= |ULTIMATE.start_main_~x~0#1| 2)))) [2023-11-21 22:09:10,820 INFO L899 garLoopResultBuilder]: For program point L34-3(lines 34 45) no Hoare annotation was computed. [2023-11-21 22:09:10,820 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-21 22:09:10,821 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-11-21 22:09:10,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2023-11-21 22:09:10,821 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2023-11-21 22:09:10,821 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 42) no Hoare annotation was computed. [2023-11-21 22:09:10,822 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 42) no Hoare annotation was computed. [2023-11-21 22:09:10,822 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,822 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-21 22:09:10,822 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 11) the Hoare annotation is: true [2023-11-21 22:09:10,822 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 9 11) no Hoare annotation was computed. [2023-11-21 22:09:10,823 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 12 18) no Hoare annotation was computed. [2023-11-21 22:09:10,823 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 12 18) the Hoare annotation is: true [2023-11-21 22:09:10,827 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:09:10,830 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:09:10,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:09:10 BoogieIcfgContainer [2023-11-21 22:09:10,847 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:09:10,848 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:09:10,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:09:10,849 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:09:10,849 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:08:35" (3/4) ... [2023-11-21 22:09:10,852 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:09:10,856 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-21 22:09:10,856 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-21 22:09:10,866 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-21 22:09:10,866 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 22:09:10,867 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:09:10,867 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:09:10,991 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:09:10,992 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:09:10,992 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:09:10,993 INFO L158 Benchmark]: Toolchain (without parser) took 36113.80ms. Allocated memory was 138.4MB in the beginning and 255.9MB in the end (delta: 117.4MB). Free memory was 71.6MB in the beginning and 136.5MB in the end (delta: -64.9MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2023-11-21 22:09:10,994 INFO L158 Benchmark]: CDTParser took 1.10ms. Allocated memory is still 138.4MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:09:10,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.42ms. Allocated memory was 138.4MB in the beginning and 211.8MB in the end (delta: 73.4MB). Free memory was 71.5MB in the beginning and 174.2MB in the end (delta: -102.8MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2023-11-21 22:09:10,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.98ms. Allocated memory is still 211.8MB. Free memory was 174.2MB in the beginning and 172.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:09:10,996 INFO L158 Benchmark]: Boogie Preprocessor took 63.81ms. Allocated memory is still 211.8MB. Free memory was 172.9MB in the beginning and 170.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:09:10,996 INFO L158 Benchmark]: RCFGBuilder took 475.75ms. Allocated memory is still 211.8MB. Free memory was 170.9MB in the beginning and 156.8MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:09:10,997 INFO L158 Benchmark]: TraceAbstraction took 34959.36ms. Allocated memory was 211.8MB in the beginning and 255.9MB in the end (delta: 44.0MB). Free memory was 156.2MB in the beginning and 140.7MB in the end (delta: 15.5MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2023-11-21 22:09:10,998 INFO L158 Benchmark]: Witness Printer took 143.72ms. Allocated memory is still 255.9MB. Free memory was 140.7MB in the beginning and 136.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:09:11,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10ms. Allocated memory is still 138.4MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.42ms. Allocated memory was 138.4MB in the beginning and 211.8MB in the end (delta: 73.4MB). Free memory was 71.5MB in the beginning and 174.2MB in the end (delta: -102.8MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.98ms. Allocated memory is still 211.8MB. Free memory was 174.2MB in the beginning and 172.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.81ms. Allocated memory is still 211.8MB. Free memory was 172.9MB in the beginning and 170.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 475.75ms. Allocated memory is still 211.8MB. Free memory was 170.9MB in the beginning and 156.8MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 34959.36ms. Allocated memory was 211.8MB in the beginning and 255.9MB in the end (delta: 44.0MB). Free memory was 156.2MB in the beginning and 140.7MB in the end (delta: 15.5MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. * Witness Printer took 143.72ms. Allocated memory is still 255.9MB. Free memory was 140.7MB in the beginning and 136.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 49 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 34.9s, OverallIterations: 16, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 948 SdHoareTripleChecker+Valid, 10.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 939 mSDsluCounter, 802 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 490 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1481 IncrementalHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 312 mSDtfsCounter, 1481 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 642 GetRequests, 503 SyntacticMatches, 4 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 11.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=11, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 70 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 18 PreInvPairs, 26 NumberOfFragments, 244 HoareAnnotationTreeSize, 18 FomulaSimplifications, 594 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 87 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 14.2s InterpolantComputationTime, 457 NumberOfCodeBlocks, 457 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 557 ConstructedInterpolants, 0 QuantifiedInterpolants, 3860 SizeOfPredicates, 37 NumberOfNonLiveVariables, 1310 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 120/180 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((((((((((x <= 4294967294) && (0 <= x)) && (a <= 2)) && (b <= 2)) && (1 <= b)) && (y == 1)) && (z == 0)) && (0 <= a)) || ((((((((((((a <= 2) && (1 <= ((y + 1) % 2))) && (0 <= y)) && (b <= 2)) && (1 <= b)) && ((x % 2) == 0)) && (y <= 1)) && ((z + (x * y)) < 9223372036854775808)) && (0 <= a)) && ((x / 2) <= 4611686018427387903)) && (0 <= (x / 2))) && (0 <= z))) || (((((((((0 <= x) && (y <= 2)) && (1 <= y)) && (a <= 2)) && (b <= 2)) && (1 <= b)) && (z == 0)) && (0 <= a)) && (x <= 2))) RESULT: Ultimate proved your program to be correct! [2023-11-21 22:09:11,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06d7675b-39f8-4a2e-9006-0f0fb78f6592/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE