./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu --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 c2bc72e0ba847f7c079e01dc4ce9f95afa555e9d2ef7b4bcdf5e1274db86053e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:41:00,172 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:41:00,273 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:41:00,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:41:00,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:41:00,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:41:00,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:41:00,304 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:41:00,305 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:41:00,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:41:00,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:41:00,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:41:00,308 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:41:00,309 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:41:00,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:41:00,310 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:41:00,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:41:00,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:41:00,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:41:00,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:41:00,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:41:00,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:41:00,315 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:41:00,316 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:41:00,316 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:41:00,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:41:00,317 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:41:00,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:41:00,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:41:00,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:41:00,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:00,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:41:00,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:41:00,322 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:41:00,322 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:41:00,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:41:00,323 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:41:00,323 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:41:00,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:41:00,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:41:00,324 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:41:00,325 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_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2bc72e0ba847f7c079e01dc4ce9f95afa555e9d2ef7b4bcdf5e1274db86053e [2023-11-19 07:41:00,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:41:00,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:41:00,619 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:41:00,620 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:41:00,621 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:41:00,623 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i [2023-11-19 07:41:03,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:41:04,173 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:41:04,174 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i [2023-11-19 07:41:04,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/data/c04abc7d4/c315674d14d54936a98229a205136d5e/FLAGe02537248 [2023-11-19 07:41:04,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/data/c04abc7d4/c315674d14d54936a98229a205136d5e [2023-11-19 07:41:04,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:41:04,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:41:04,238 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:04,238 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:41:04,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:41:04,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:04" (1/1) ... [2023-11-19 07:41:04,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6789f3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:04, skipping insertion in model container [2023-11-19 07:41:04,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:04" (1/1) ... [2023-11-19 07:41:04,333 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:41:04,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:04,960 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:41:05,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:05,165 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:41:05,177 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:41:05,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05 WrapperNode [2023-11-19 07:41:05,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:05,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:05,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:41:05,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:41:05,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,358 INFO L138 Inliner]: procedures = 208, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1215 [2023-11-19 07:41:05,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:05,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:41:05,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:41:05,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:41:05,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,382 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,382 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,445 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,453 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:41:05,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:41:05,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:41:05,486 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:41:05,486 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (1/1) ... [2023-11-19 07:41:05,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:05,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:05,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:05,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:41:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:41:05,565 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:41:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:41:05,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:41:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:41:05,566 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:41:05,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:41:05,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:41:05,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:41:05,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:41:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:41:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:41:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:41:05,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:41:05,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:41:05,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:41:05,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:41:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:41:05,801 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:41:05,803 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:41:07,233 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:41:07,253 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:41:07,253 INFO L302 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-19 07:41:07,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:07 BoogieIcfgContainer [2023-11-19 07:41:07,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:41:07,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:41:07,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:41:07,273 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:41:07,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:04" (1/3) ... [2023-11-19 07:41:07,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343c53db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:07, skipping insertion in model container [2023-11-19 07:41:07,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:05" (2/3) ... [2023-11-19 07:41:07,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343c53db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:07, skipping insertion in model container [2023-11-19 07:41:07,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:07" (3/3) ... [2023-11-19 07:41:07,278 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test2-1.i [2023-11-19 07:41:07,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:41:07,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:41:07,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:41:07,378 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;@3c71ceb6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:41:07,378 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 07:41:07,385 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 335 states have (on average 1.7044776119402985) internal successors, (571), 350 states have internal predecessors, (571), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:41:07,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:41:07,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:07,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:07,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:07,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:07,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1617610634, now seen corresponding path program 1 times [2023-11-19 07:41:07,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:07,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897266104] [2023-11-19 07:41:07,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:07,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:07,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:07,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897266104] [2023-11-19 07:41:07,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:41:07,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213966626] [2023-11-19 07:41:07,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:07,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:07,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:07,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:07,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:41:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:07,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:41:07,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:07,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:07,795 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:07,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213966626] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:07,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:07,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:07,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418397138] [2023-11-19 07:41:07,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:07,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:41:07,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:07,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:41:07,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:41:07,836 INFO L87 Difference]: Start difference. First operand has 357 states, 335 states have (on average 1.7044776119402985) internal successors, (571), 350 states have internal predecessors, (571), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-19 07:41:07,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:07,909 INFO L93 Difference]: Finished difference Result 710 states and 1184 transitions. [2023-11-19 07:41:07,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:41:07,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 07:41:07,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:07,925 INFO L225 Difference]: With dead ends: 710 [2023-11-19 07:41:07,926 INFO L226 Difference]: Without dead ends: 348 [2023-11-19 07:41:07,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:41:07,966 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:07,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:41:07,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-11-19 07:41:08,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2023-11-19 07:41:08,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 330 states have (on average 1.5272727272727273) internal successors, (504), 342 states have internal predecessors, (504), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:41:08,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 520 transitions. [2023-11-19 07:41:08,042 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 520 transitions. Word has length 7 [2023-11-19 07:41:08,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:08,043 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 520 transitions. [2023-11-19 07:41:08,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-19 07:41:08,044 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 520 transitions. [2023-11-19 07:41:08,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:41:08,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:08,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:08,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:08,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:08,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:08,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:08,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1617608712, now seen corresponding path program 1 times [2023-11-19 07:41:08,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:08,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416934380] [2023-11-19 07:41:08,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:08,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:08,296 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:08,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32144434] [2023-11-19 07:41:08,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:08,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:08,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:08,299 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:08,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:41:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:08,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:41:08,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:08,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:41:08,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:41:08,561 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-19 07:41:08,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-19 07:41:08,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:41:08,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-19 07:41:08,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:08,639 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:08,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:08,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416934380] [2023-11-19 07:41:08,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:08,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32144434] [2023-11-19 07:41:08,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32144434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:08,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:08,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:08,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644075073] [2023-11-19 07:41:08,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:08,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:08,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:08,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:08,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:08,650 INFO L87 Difference]: Start difference. First operand 348 states and 520 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2023-11-19 07:41:09,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:09,575 INFO L93 Difference]: Finished difference Result 626 states and 952 transitions. [2023-11-19 07:41:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:09,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 07:41:09,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:09,582 INFO L225 Difference]: With dead ends: 626 [2023-11-19 07:41:09,582 INFO L226 Difference]: Without dead ends: 624 [2023-11-19 07:41:09,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:41:09,585 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 583 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:09,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 1812 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:41:09,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2023-11-19 07:41:09,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 354. [2023-11-19 07:41:09,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 336 states have (on average 1.5208333333333333) internal successors, (511), 348 states have internal predecessors, (511), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:41:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 527 transitions. [2023-11-19 07:41:09,619 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 527 transitions. Word has length 7 [2023-11-19 07:41:09,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:09,619 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 527 transitions. [2023-11-19 07:41:09,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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) [2023-11-19 07:41:09,620 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 527 transitions. [2023-11-19 07:41:09,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-19 07:41:09,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:09,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:09,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:09,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:09,849 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:09,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:09,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1901828698, now seen corresponding path program 1 times [2023-11-19 07:41:09,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:09,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742505633] [2023-11-19 07:41:09,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:09,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:10,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:10,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:10,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742505633] [2023-11-19 07:41:10,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742505633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:10,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:10,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:10,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350491588] [2023-11-19 07:41:10,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:10,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:41:10,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:10,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:10,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:10,495 INFO L87 Difference]: Start difference. First operand 354 states and 527 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-11-19 07:41:10,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:10,827 INFO L93 Difference]: Finished difference Result 671 states and 1013 transitions. [2023-11-19 07:41:10,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:41:10,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-19 07:41:10,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:10,832 INFO L225 Difference]: With dead ends: 671 [2023-11-19 07:41:10,832 INFO L226 Difference]: Without dead ends: 510 [2023-11-19 07:41:10,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:10,835 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 234 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:10,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 1431 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:41:10,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2023-11-19 07:41:10,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 354. [2023-11-19 07:41:10,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 336 states have (on average 1.5178571428571428) internal successors, (510), 348 states have internal predecessors, (510), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:41:10,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 526 transitions. [2023-11-19 07:41:10,859 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 526 transitions. Word has length 64 [2023-11-19 07:41:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:10,859 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 526 transitions. [2023-11-19 07:41:10,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2023-11-19 07:41:10,860 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 526 transitions. [2023-11-19 07:41:10,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:41:10,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:10,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:10,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:41:10,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:10,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:10,865 INFO L85 PathProgramCache]: Analyzing trace with hash -721799445, now seen corresponding path program 1 times [2023-11-19 07:41:10,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:10,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586485760] [2023-11-19 07:41:10,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:10,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:10,925 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:10,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298524099] [2023-11-19 07:41:10,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:10,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:10,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:10,927 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:10,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:41:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:11,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:41:11,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:11,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:11,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:11,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:11,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586485760] [2023-11-19 07:41:11,249 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:11,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298524099] [2023-11-19 07:41:11,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298524099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:11,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:11,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:41:11,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513291038] [2023-11-19 07:41:11,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:11,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:11,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:11,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:11,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:11,252 INFO L87 Difference]: Start difference. First operand 354 states and 526 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2023-11-19 07:41:11,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:11,361 INFO L93 Difference]: Finished difference Result 721 states and 1075 transitions. [2023-11-19 07:41:11,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:11,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-11-19 07:41:11,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:11,365 INFO L225 Difference]: With dead ends: 721 [2023-11-19 07:41:11,365 INFO L226 Difference]: Without dead ends: 375 [2023-11-19 07:41:11,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:11,368 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 9 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:11,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 985 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:41:11,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-19 07:41:11,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 374. [2023-11-19 07:41:11,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 356 states have (on average 1.4887640449438202) internal successors, (530), 368 states have internal predecessors, (530), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:41:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 546 transitions. [2023-11-19 07:41:11,384 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 546 transitions. Word has length 81 [2023-11-19 07:41:11,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:11,385 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 546 transitions. [2023-11-19 07:41:11,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2023-11-19 07:41:11,385 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 546 transitions. [2023-11-19 07:41:11,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:41:11,389 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:11,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:11,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-19 07:41:11,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:11,606 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:11,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:11,607 INFO L85 PathProgramCache]: Analyzing trace with hash 2034827821, now seen corresponding path program 1 times [2023-11-19 07:41:11,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:11,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946929737] [2023-11-19 07:41:11,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:11,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:11,676 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:11,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816682548] [2023-11-19 07:41:11,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:11,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:11,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:11,677 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:11,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:41:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:11,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:41:11,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:12,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:12,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:12,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:12,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946929737] [2023-11-19 07:41:12,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:12,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816682548] [2023-11-19 07:41:12,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816682548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:12,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:12,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:12,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592957887] [2023-11-19 07:41:12,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:12,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:41:12,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:12,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:12,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:12,028 INFO L87 Difference]: Start difference. First operand 374 states and 546 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2023-11-19 07:41:12,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:12,120 INFO L93 Difference]: Finished difference Result 727 states and 1071 transitions. [2023-11-19 07:41:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:41:12,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-11-19 07:41:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:12,124 INFO L225 Difference]: With dead ends: 727 [2023-11-19 07:41:12,125 INFO L226 Difference]: Without dead ends: 361 [2023-11-19 07:41:12,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:12,129 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 165 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:12,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1325 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:41:12,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-19 07:41:12,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 360. [2023-11-19 07:41:12,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 342 states have (on average 1.4883040935672514) internal successors, (509), 354 states have internal predecessors, (509), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 07:41:12,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 525 transitions. [2023-11-19 07:41:12,149 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 525 transitions. Word has length 81 [2023-11-19 07:41:12,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:12,151 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 525 transitions. [2023-11-19 07:41:12,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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) [2023-11-19 07:41:12,152 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 525 transitions. [2023-11-19 07:41:12,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 07:41:12,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:12,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:12,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-19 07:41:12,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:12,377 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:12,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:12,377 INFO L85 PathProgramCache]: Analyzing trace with hash -737059617, now seen corresponding path program 1 times [2023-11-19 07:41:12,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:12,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474672372] [2023-11-19 07:41:12,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:12,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:12,435 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:12,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183022703] [2023-11-19 07:41:12,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:12,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:12,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:12,437 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:12,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:41:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:12,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:41:12,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:12,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:12,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:12,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474672372] [2023-11-19 07:41:12,959 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:12,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183022703] [2023-11-19 07:41:12,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183022703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:12,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:12,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:41:12,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392748443] [2023-11-19 07:41:12,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:12,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:12,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:12,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:12,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:12,962 INFO L87 Difference]: Start difference. First operand 360 states and 525 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2023-11-19 07:41:13,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:13,046 INFO L93 Difference]: Finished difference Result 963 states and 1430 transitions. [2023-11-19 07:41:13,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:13,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2023-11-19 07:41:13,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:13,075 INFO L225 Difference]: With dead ends: 963 [2023-11-19 07:41:13,076 INFO L226 Difference]: Without dead ends: 611 [2023-11-19 07:41:13,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:13,077 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 324 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:13,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1182 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:41:13,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2023-11-19 07:41:13,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 607. [2023-11-19 07:41:13,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 584 states have (on average 1.5154109589041096) internal successors, (885), 601 states have internal predecessors, (885), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:41:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 911 transitions. [2023-11-19 07:41:13,107 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 911 transitions. Word has length 81 [2023-11-19 07:41:13,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:13,107 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 911 transitions. [2023-11-19 07:41:13,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2023-11-19 07:41:13,108 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 911 transitions. [2023-11-19 07:41:13,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 07:41:13,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:13,112 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:13,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:13,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:41:13,333 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:13,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:13,334 INFO L85 PathProgramCache]: Analyzing trace with hash 105907440, now seen corresponding path program 1 times [2023-11-19 07:41:13,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:13,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997887678] [2023-11-19 07:41:13,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:13,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:13,390 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:13,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131742093] [2023-11-19 07:41:13,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:13,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:13,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:13,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:13,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:41:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:13,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 07:41:13,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:13,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:41:13,850 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-19 07:41:13,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:41:13,913 INFO L349 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2023-11-19 07:41:13,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 42 [2023-11-19 07:41:14,550 INFO L349 Elim1Store]: treesize reduction 12, result has 78.2 percent of original size [2023-11-19 07:41:14,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 52 treesize of output 68 [2023-11-19 07:41:14,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:41:14,955 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:14,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:14,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997887678] [2023-11-19 07:41:14,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:14,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131742093] [2023-11-19 07:41:14,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131742093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:14,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:14,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:41:14,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795704306] [2023-11-19 07:41:14,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:14,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:41:14,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:14,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:41:14,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:41:14,959 INFO L87 Difference]: Start difference. First operand 607 states and 911 transitions. Second operand has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:18,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:18,598 INFO L93 Difference]: Finished difference Result 1351 states and 2032 transitions. [2023-11-19 07:41:18,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:41:18,599 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2023-11-19 07:41:18,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:18,605 INFO L225 Difference]: With dead ends: 1351 [2023-11-19 07:41:18,606 INFO L226 Difference]: Without dead ends: 828 [2023-11-19 07:41:18,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:41:18,608 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 455 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:18,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 3339 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-19 07:41:18,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2023-11-19 07:41:18,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 639. [2023-11-19 07:41:18,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 616 states have (on average 1.4967532467532467) internal successors, (922), 633 states have internal predecessors, (922), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:41:18,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 948 transitions. [2023-11-19 07:41:18,651 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 948 transitions. Word has length 96 [2023-11-19 07:41:18,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:18,652 INFO L495 AbstractCegarLoop]: Abstraction has 639 states and 948 transitions. [2023-11-19 07:41:18,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:18,656 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 948 transitions. [2023-11-19 07:41:18,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-19 07:41:18,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:18,658 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:18,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:18,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:18,859 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:18,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:18,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1602872460, now seen corresponding path program 1 times [2023-11-19 07:41:18,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:18,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586762579] [2023-11-19 07:41:18,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:18,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:18,941 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:18,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914098775] [2023-11-19 07:41:18,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:18,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:18,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:18,943 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:18,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:41:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:19,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:41:19,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:41:19,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:19,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:19,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586762579] [2023-11-19 07:41:19,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:19,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914098775] [2023-11-19 07:41:19,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914098775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:19,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:19,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:41:19,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251086401] [2023-11-19 07:41:19,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:19,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:19,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:19,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:19,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:19,355 INFO L87 Difference]: Start difference. First operand 639 states and 948 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:19,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:19,489 INFO L93 Difference]: Finished difference Result 1362 states and 2055 transitions. [2023-11-19 07:41:19,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:19,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2023-11-19 07:41:19,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:19,496 INFO L225 Difference]: With dead ends: 1362 [2023-11-19 07:41:19,496 INFO L226 Difference]: Without dead ends: 827 [2023-11-19 07:41:19,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:19,499 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 144 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:19,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1478 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:41:19,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2023-11-19 07:41:19,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 662. [2023-11-19 07:41:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 639 states have (on average 1.4773082942097027) internal successors, (944), 656 states have internal predecessors, (944), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:41:19,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 970 transitions. [2023-11-19 07:41:19,535 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 970 transitions. Word has length 96 [2023-11-19 07:41:19,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:19,535 INFO L495 AbstractCegarLoop]: Abstraction has 662 states and 970 transitions. [2023-11-19 07:41:19,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 970 transitions. [2023-11-19 07:41:19,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 07:41:19,537 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:19,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:19,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:19,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:19,753 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:19,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:19,753 INFO L85 PathProgramCache]: Analyzing trace with hash 622698480, now seen corresponding path program 1 times [2023-11-19 07:41:19,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:19,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427157607] [2023-11-19 07:41:19,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:19,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:19,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:19,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135811046] [2023-11-19 07:41:19,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:19,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:19,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:19,822 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:19,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:41:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:20,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-19 07:41:20,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:20,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:41:20,495 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2023-11-19 07:41:20,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2023-11-19 07:41:20,546 INFO L349 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2023-11-19 07:41:20,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 42 [2023-11-19 07:41:21,093 INFO L349 Elim1Store]: treesize reduction 12, result has 78.2 percent of original size [2023-11-19 07:41:21,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 52 treesize of output 68 [2023-11-19 07:41:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:41:21,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:21,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:21,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427157607] [2023-11-19 07:41:21,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:21,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135811046] [2023-11-19 07:41:21,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135811046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:21,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:21,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-19 07:41:21,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747596906] [2023-11-19 07:41:21,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:21,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:41:21,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:21,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:41:21,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:41:21,427 INFO L87 Difference]: Start difference. First operand 662 states and 970 transitions. Second operand has 12 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:24,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:24,529 INFO L93 Difference]: Finished difference Result 1417 states and 2107 transitions. [2023-11-19 07:41:24,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:41:24,529 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 97 [2023-11-19 07:41:24,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:24,535 INFO L225 Difference]: With dead ends: 1417 [2023-11-19 07:41:24,535 INFO L226 Difference]: Without dead ends: 875 [2023-11-19 07:41:24,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:41:24,538 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 507 mSDsluCounter, 3058 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 3533 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:24,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 3533 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-19 07:41:24,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2023-11-19 07:41:24,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 675. [2023-11-19 07:41:24,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 652 states have (on average 1.4754601226993864) internal successors, (962), 669 states have internal predecessors, (962), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:41:24,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 988 transitions. [2023-11-19 07:41:24,568 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 988 transitions. Word has length 97 [2023-11-19 07:41:24,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:24,569 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 988 transitions. [2023-11-19 07:41:24,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:24,569 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 988 transitions. [2023-11-19 07:41:24,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 07:41:24,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:24,571 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:24,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:24,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:24,784 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:24,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:24,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1251426907, now seen corresponding path program 1 times [2023-11-19 07:41:24,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:24,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699501792] [2023-11-19 07:41:24,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:24,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:24,846 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:24,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942963484] [2023-11-19 07:41:24,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:24,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:24,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:24,848 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:24,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:41:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:25,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:41:25,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:25,449 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:41:25,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:25,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:25,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699501792] [2023-11-19 07:41:25,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:25,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942963484] [2023-11-19 07:41:25,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942963484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:25,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:25,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:41:25,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555119083] [2023-11-19 07:41:25,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:25,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:41:25,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:25,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:41:25,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:41:25,455 INFO L87 Difference]: Start difference. First operand 675 states and 988 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:26,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:26,103 INFO L93 Difference]: Finished difference Result 1253 states and 1852 transitions. [2023-11-19 07:41:26,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:41:26,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2023-11-19 07:41:26,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:26,109 INFO L225 Difference]: With dead ends: 1253 [2023-11-19 07:41:26,109 INFO L226 Difference]: Without dead ends: 699 [2023-11-19 07:41:26,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:41:26,111 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 17 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2435 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:26,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2435 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:41:26,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2023-11-19 07:41:26,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 689. [2023-11-19 07:41:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 666 states have (on average 1.4714714714714714) internal successors, (980), 683 states have internal predecessors, (980), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:41:26,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1006 transitions. [2023-11-19 07:41:26,142 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1006 transitions. Word has length 98 [2023-11-19 07:41:26,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:26,142 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 1006 transitions. [2023-11-19 07:41:26,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:26,143 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1006 transitions. [2023-11-19 07:41:26,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 07:41:26,144 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:26,144 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:26,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:26,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:41:26,360 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:26,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:26,361 INFO L85 PathProgramCache]: Analyzing trace with hash -32088629, now seen corresponding path program 1 times [2023-11-19 07:41:26,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:26,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100418609] [2023-11-19 07:41:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:26,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:26,442 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:26,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297519635] [2023-11-19 07:41:26,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:26,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:26,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:26,444 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:26,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:41:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:26,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:41:26,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:41:27,022 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:27,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:27,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100418609] [2023-11-19 07:41:27,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:27,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297519635] [2023-11-19 07:41:27,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297519635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:27,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:27,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:41:27,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76934150] [2023-11-19 07:41:27,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:27,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:27,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:27,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:27,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:27,025 INFO L87 Difference]: Start difference. First operand 689 states and 1006 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:27,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:27,519 INFO L93 Difference]: Finished difference Result 1261 states and 1857 transitions. [2023-11-19 07:41:27,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:27,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 98 [2023-11-19 07:41:27,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:27,525 INFO L225 Difference]: With dead ends: 1261 [2023-11-19 07:41:27,525 INFO L226 Difference]: Without dead ends: 701 [2023-11-19 07:41:27,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:27,527 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 10 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:27,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1728 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:41:27,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2023-11-19 07:41:27,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 697. [2023-11-19 07:41:27,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 674 states have (on average 1.4688427299703264) internal successors, (990), 691 states have internal predecessors, (990), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-19 07:41:27,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 1016 transitions. [2023-11-19 07:41:27,555 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 1016 transitions. Word has length 98 [2023-11-19 07:41:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:27,555 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 1016 transitions. [2023-11-19 07:41:27,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 1016 transitions. [2023-11-19 07:41:27,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-19 07:41:27,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:27,557 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:27,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:27,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 07:41:27,783 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:27,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:27,784 INFO L85 PathProgramCache]: Analyzing trace with hash 169735305, now seen corresponding path program 1 times [2023-11-19 07:41:27,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:27,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226891944] [2023-11-19 07:41:27,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:27,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:27,840 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:27,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2103309458] [2023-11-19 07:41:27,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:27,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:27,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:27,842 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:27,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:41:28,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:28,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:41:28,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:28,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:28,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:28,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:28,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226891944] [2023-11-19 07:41:28,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:28,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103309458] [2023-11-19 07:41:28,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103309458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:28,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:28,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:28,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949937795] [2023-11-19 07:41:28,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:28,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:41:28,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:28,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:28,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:28,349 INFO L87 Difference]: Start difference. First operand 697 states and 1016 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:41:28,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:28,416 INFO L93 Difference]: Finished difference Result 1229 states and 1804 transitions. [2023-11-19 07:41:28,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:41:28,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 98 [2023-11-19 07:41:28,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:28,421 INFO L225 Difference]: With dead ends: 1229 [2023-11-19 07:41:28,422 INFO L226 Difference]: Without dead ends: 700 [2023-11-19 07:41:28,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:28,423 INFO L413 NwaCegarLoop]: 510 mSDtfsCounter, 2 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:28,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1526 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:41:28,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-11-19 07:41:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 700. [2023-11-19 07:41:28,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 676 states have (on average 1.4689349112426036) internal successors, (993), 694 states have internal predecessors, (993), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-19 07:41:28,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1020 transitions. [2023-11-19 07:41:28,452 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1020 transitions. Word has length 98 [2023-11-19 07:41:28,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:28,452 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 1020 transitions. [2023-11-19 07:41:28,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:41:28,453 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1020 transitions. [2023-11-19 07:41:28,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 07:41:28,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:28,454 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:28,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:28,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-19 07:41:28,668 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:28,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:28,669 INFO L85 PathProgramCache]: Analyzing trace with hash 746373383, now seen corresponding path program 1 times [2023-11-19 07:41:28,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:28,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097256139] [2023-11-19 07:41:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:28,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:28,724 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:28,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063326855] [2023-11-19 07:41:28,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:28,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:28,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:28,726 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:28,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:41:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:29,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:41:29,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:29,681 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:29,681 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:41:29,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:29,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097256139] [2023-11-19 07:41:29,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:29,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063326855] [2023-11-19 07:41:29,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063326855] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:29,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:41:29,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-19 07:41:29,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677205990] [2023-11-19 07:41:29,786 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:29,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:41:29,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:29,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:41:29,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:41:29,788 INFO L87 Difference]: Start difference. First operand 700 states and 1020 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:41:29,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:29,938 INFO L93 Difference]: Finished difference Result 1243 states and 1826 transitions. [2023-11-19 07:41:29,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:41:29,939 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 100 [2023-11-19 07:41:29,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:29,944 INFO L225 Difference]: With dead ends: 1243 [2023-11-19 07:41:29,944 INFO L226 Difference]: Without dead ends: 709 [2023-11-19 07:41:29,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:41:29,946 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 12 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3033 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:29,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3033 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:41:29,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2023-11-19 07:41:29,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2023-11-19 07:41:29,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 684 states have (on average 1.469298245614035) internal successors, (1005), 702 states have internal predecessors, (1005), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (15), 5 states have call predecessors, (15), 13 states have call successors, (15) [2023-11-19 07:41:29,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 1033 transitions. [2023-11-19 07:41:29,976 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 1033 transitions. Word has length 100 [2023-11-19 07:41:29,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:29,977 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 1033 transitions. [2023-11-19 07:41:29,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-19 07:41:29,977 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 1033 transitions. [2023-11-19 07:41:29,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:41:29,979 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:29,979 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:30,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:30,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:41:30,192 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:30,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:30,193 INFO L85 PathProgramCache]: Analyzing trace with hash -345571671, now seen corresponding path program 2 times [2023-11-19 07:41:30,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:30,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093834532] [2023-11-19 07:41:30,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:30,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:30,278 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:30,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [364256621] [2023-11-19 07:41:30,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:41:30,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:30,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:30,280 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:30,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:41:30,760 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:41:30,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:41:30,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 07:41:30,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:36,379 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-19 07:41:36,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:36,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:36,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093834532] [2023-11-19 07:41:36,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:36,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364256621] [2023-11-19 07:41:36,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364256621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:36,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:36,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:41:36,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133124560] [2023-11-19 07:41:36,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:36,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:41:36,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:36,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:41:36,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:41:36,383 INFO L87 Difference]: Start difference. First operand 709 states and 1033 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:37,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:41:40,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 07:41:41,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:41,096 INFO L93 Difference]: Finished difference Result 1295 states and 1903 transitions. [2023-11-19 07:41:41,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:41:41,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 104 [2023-11-19 07:41:41,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:41,101 INFO L225 Difference]: With dead ends: 1295 [2023-11-19 07:41:41,101 INFO L226 Difference]: Without dead ends: 723 [2023-11-19 07:41:41,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:41:41,104 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 16 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:41,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2429 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 653 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2023-11-19 07:41:41,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2023-11-19 07:41:41,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 709. [2023-11-19 07:41:41,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 684 states have (on average 1.469298245614035) internal successors, (1005), 702 states have internal predecessors, (1005), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (15), 5 states have call predecessors, (15), 13 states have call successors, (15) [2023-11-19 07:41:41,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 1033 transitions. [2023-11-19 07:41:41,132 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 1033 transitions. Word has length 104 [2023-11-19 07:41:41,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:41,133 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 1033 transitions. [2023-11-19 07:41:41,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:41,133 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 1033 transitions. [2023-11-19 07:41:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 07:41:41,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:41,135 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:41,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:41,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:41:41,344 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:41,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:41,345 INFO L85 PathProgramCache]: Analyzing trace with hash -182290879, now seen corresponding path program 1 times [2023-11-19 07:41:41,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:41,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740863938] [2023-11-19 07:41:41,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:41,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:41,408 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:41,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2147138109] [2023-11-19 07:41:41,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:41,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:41,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:41,410 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:41,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:41:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:42,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 07:41:42,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:42,188 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-19 07:41:42,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:42,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:42,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740863938] [2023-11-19 07:41:42,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:42,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147138109] [2023-11-19 07:41:42,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147138109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:42,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:42,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:41:42,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442382242] [2023-11-19 07:41:42,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:42,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:41:42,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:42,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:41:42,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:41:42,192 INFO L87 Difference]: Start difference. First operand 709 states and 1033 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:42,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:42,892 INFO L93 Difference]: Finished difference Result 1301 states and 1908 transitions. [2023-11-19 07:41:42,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:41:42,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 105 [2023-11-19 07:41:42,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:42,899 INFO L225 Difference]: With dead ends: 1301 [2023-11-19 07:41:42,899 INFO L226 Difference]: Without dead ends: 733 [2023-11-19 07:41:42,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:41:42,901 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 19 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:42,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2483 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:41:42,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-11-19 07:41:42,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 719. [2023-11-19 07:41:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 694 states have (on average 1.4654178674351586) internal successors, (1017), 712 states have internal predecessors, (1017), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (15), 5 states have call predecessors, (15), 13 states have call successors, (15) [2023-11-19 07:41:42,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1045 transitions. [2023-11-19 07:41:42,930 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1045 transitions. Word has length 105 [2023-11-19 07:41:42,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:42,931 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 1045 transitions. [2023-11-19 07:41:42,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:42,931 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1045 transitions. [2023-11-19 07:41:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 07:41:42,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:42,933 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:42,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:43,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 07:41:43,148 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:43,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:43,149 INFO L85 PathProgramCache]: Analyzing trace with hash -924112768, now seen corresponding path program 1 times [2023-11-19 07:41:43,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:43,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758683463] [2023-11-19 07:41:43,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:43,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:43,231 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:43,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853330413] [2023-11-19 07:41:43,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:43,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:43,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:43,233 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:43,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:41:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 07:41:43,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:43,885 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-19 07:41:43,885 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:43,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:43,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758683463] [2023-11-19 07:41:43,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:43,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853330413] [2023-11-19 07:41:43,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853330413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:43,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:43,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:41:43,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546607866] [2023-11-19 07:41:43,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:43,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:41:43,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:43,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:41:43,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:41:43,889 INFO L87 Difference]: Start difference. First operand 719 states and 1045 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:44,607 INFO L93 Difference]: Finished difference Result 1323 states and 1939 transitions. [2023-11-19 07:41:44,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:41:44,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 106 [2023-11-19 07:41:44,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:44,613 INFO L225 Difference]: With dead ends: 1323 [2023-11-19 07:41:44,613 INFO L226 Difference]: Without dead ends: 741 [2023-11-19 07:41:44,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:41:44,615 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 20 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 853 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:44,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3335 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 853 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:41:44,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2023-11-19 07:41:44,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 731. [2023-11-19 07:41:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 706 states have (on average 1.4603399433427762) internal successors, (1031), 724 states have internal predecessors, (1031), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (15), 5 states have call predecessors, (15), 13 states have call successors, (15) [2023-11-19 07:41:44,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 1059 transitions. [2023-11-19 07:41:44,643 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 1059 transitions. Word has length 106 [2023-11-19 07:41:44,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:44,668 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 1059 transitions. [2023-11-19 07:41:44,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:41:44,669 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 1059 transitions. [2023-11-19 07:41:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-19 07:41:44,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:44,670 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:44,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:44,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 07:41:44,871 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:44,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:44,872 INFO L85 PathProgramCache]: Analyzing trace with hash 814415618, now seen corresponding path program 1 times [2023-11-19 07:41:44,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:44,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688266529] [2023-11-19 07:41:44,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:44,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:44,945 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:44,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1257948273] [2023-11-19 07:41:44,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:44,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:44,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:44,947 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:44,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:41:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:45,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 07:41:45,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:45,603 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:41:45,603 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:45,741 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-19 07:41:45,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688266529] [2023-11-19 07:41:45,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:45,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257948273] [2023-11-19 07:41:45,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257948273] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:45,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:41:45,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2023-11-19 07:41:45,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270954628] [2023-11-19 07:41:45,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:45,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:41:45,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:45,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:41:45,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:41:45,745 INFO L87 Difference]: Start difference. First operand 731 states and 1059 transitions. Second operand has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:41:46,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:46,047 INFO L93 Difference]: Finished difference Result 1251 states and 1829 transitions. [2023-11-19 07:41:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:41:46,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 106 [2023-11-19 07:41:46,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:46,052 INFO L225 Difference]: With dead ends: 1251 [2023-11-19 07:41:46,052 INFO L226 Difference]: Without dead ends: 587 [2023-11-19 07:41:46,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=202, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:41:46,056 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 101 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 3767 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:46,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 3767 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:41:46,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-11-19 07:41:46,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 583. [2023-11-19 07:41:46,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 558 states have (on average 1.4534050179211468) internal successors, (811), 576 states have internal predecessors, (811), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2023-11-19 07:41:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 838 transitions. [2023-11-19 07:41:46,083 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 838 transitions. Word has length 106 [2023-11-19 07:41:46,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:46,084 INFO L495 AbstractCegarLoop]: Abstraction has 583 states and 838 transitions. [2023-11-19 07:41:46,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.0) internal successors, (110), 11 states have internal predecessors, (110), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:41:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 838 transitions. [2023-11-19 07:41:46,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-19 07:41:46,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:46,086 INFO L195 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:46,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:46,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:41:46,301 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 07:41:46,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:46,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1418916930, now seen corresponding path program 2 times [2023-11-19 07:41:46,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:46,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165258426] [2023-11-19 07:41:46,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:46,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:46,367 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:46,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99224223] [2023-11-19 07:41:46,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:41:46,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:46,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:46,369 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:46,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86cd68de-60c7-4a60-a3a5-f285d02103e8/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process