./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.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_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/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_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/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_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/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 26a58d7d603dc7e351440fbc8be1a2e69d6c8a245d05ca1fdcdd97a1f744081c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:22,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:22,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:04:22,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:22,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:22,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:22,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:22,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:22,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:04:22,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:04:22,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:22,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:22,321 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:22,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:22,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:04:22,328 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:04:22,328 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:22,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:04:22,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:22,329 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:04:22,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:04:22,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:04:22,331 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:04:22,331 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:04:22,332 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:04:22,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:22,333 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:22,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:22,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:22,334 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:04:22,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:22,335 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:22,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:04:22,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:04:22,336 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:22,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:04:22,337 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:04:22,337 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:04:22,337 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:04:22,337 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:04:22,338 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:04:22,338 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_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26a58d7d603dc7e351440fbc8be1a2e69d6c8a245d05ca1fdcdd97a1f744081c [2023-11-19 08:04:22,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:22,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:22,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:22,698 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:22,699 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:22,701 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i [2023-11-19 08:04:26,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:26,342 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:26,346 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-2.i [2023-11-19 08:04:26,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/data/735ca88ef/43a0f76eb8cb4eda94643d67385868ef/FLAG68b556a42 [2023-11-19 08:04:26,385 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/data/735ca88ef/43a0f76eb8cb4eda94643d67385868ef [2023-11-19 08:04:26,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:26,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:26,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:26,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:26,399 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:26,400 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:26" (1/1) ... [2023-11-19 08:04:26,401 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252a2989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:26, skipping insertion in model container [2023-11-19 08:04:26,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:26" (1/1) ... [2023-11-19 08:04:26,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:26,738 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:04:27,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:27,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:27,157 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:04:27,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:27,275 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:04:27,284 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:27,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27 WrapperNode [2023-11-19 08:04:27,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:27,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:27,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:27,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:27,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,431 INFO L138 Inliner]: procedures = 178, calls = 229, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 925 [2023-11-19 08:04:27,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:27,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:27,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:27,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:27,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,540 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,592 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:27,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:27,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:27,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:27,645 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (1/1) ... [2023-11-19 08:04:27,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:27,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:27,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:27,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:27,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:04:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:04:27,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 08:04:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 08:04:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:04:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:04:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:04:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:04:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:04:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:04:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:04:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:27,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:27,983 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:27,985 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:29,353 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:29,378 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:29,378 INFO L302 CfgBuilder]: Removed 40 assume(true) statements. [2023-11-19 08:04:29,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:29 BoogieIcfgContainer [2023-11-19 08:04:29,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:29,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:04:29,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:04:29,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:04:29,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:26" (1/3) ... [2023-11-19 08:04:29,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d709bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:29, skipping insertion in model container [2023-11-19 08:04:29,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:27" (2/3) ... [2023-11-19 08:04:29,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d709bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:29, skipping insertion in model container [2023-11-19 08:04:29,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:29" (3/3) ... [2023-11-19 08:04:29,406 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test1-2.i [2023-11-19 08:04:29,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:04:29,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-19 08:04:29,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:29,505 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;@577165b0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>] [2023-11-19 08:04:29,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-19 08:04:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 235 states, 224 states have (on average 1.6785714285714286) internal successors, (376), 230 states have internal predecessors, (376), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:04:29,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 08:04:29,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:29,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:04:29,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:29,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:29,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1126982839, now seen corresponding path program 1 times [2023-11-19 08:04:29,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:29,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353608533] [2023-11-19 08:04:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:29,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:29,717 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 08:04:29,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:29,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353608533] [2023-11-19 08:04:29,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353608533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:29,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:29,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:29,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706018456] [2023-11-19 08:04:29,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:29,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:29,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:29,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:29,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:29,777 INFO L87 Difference]: Start difference. First operand has 235 states, 224 states have (on average 1.6785714285714286) internal successors, (376), 230 states have internal predecessors, (376), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 08:04:29,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:29,916 INFO L93 Difference]: Finished difference Result 647 states and 1063 transitions. [2023-11-19 08:04:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:29,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-19 08:04:29,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:29,939 INFO L225 Difference]: With dead ends: 647 [2023-11-19 08:04:29,940 INFO L226 Difference]: Without dead ends: 373 [2023-11-19 08:04:29,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 08:04:29,948 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 260 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:29,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 660 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:29,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-19 08:04:30,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 194. [2023-11-19 08:04:30,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 184 states have (on average 1.5) internal successors, (276), 189 states have internal predecessors, (276), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:04:30,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 282 transitions. [2023-11-19 08:04:30,014 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 282 transitions. Word has length 6 [2023-11-19 08:04:30,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:30,014 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 282 transitions. [2023-11-19 08:04:30,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 08:04:30,015 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 282 transitions. [2023-11-19 08:04:30,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 08:04:30,015 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:30,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:04:30,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:04:30,016 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:30,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:30,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1126331241, now seen corresponding path program 1 times [2023-11-19 08:04:30,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:30,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800628799] [2023-11-19 08:04:30,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:30,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:30,279 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 08:04:30,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:30,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800628799] [2023-11-19 08:04:30,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800628799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:30,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:30,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:30,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882602946] [2023-11-19 08:04:30,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:30,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:30,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:30,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:30,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:30,283 INFO L87 Difference]: Start difference. First operand 194 states and 282 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 08:04:30,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:30,315 INFO L93 Difference]: Finished difference Result 200 states and 288 transitions. [2023-11-19 08:04:30,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:30,316 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2023-11-19 08:04:30,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:30,318 INFO L225 Difference]: With dead ends: 200 [2023-11-19 08:04:30,319 INFO L226 Difference]: Without dead ends: 199 [2023-11-19 08:04:30,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:30,321 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 4 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:30,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 552 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:30,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-19 08:04:30,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2023-11-19 08:04:30,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 187 states have (on average 1.4919786096256684) internal successors, (279), 192 states have internal predecessors, (279), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:04:30,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 285 transitions. [2023-11-19 08:04:30,339 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 285 transitions. Word has length 6 [2023-11-19 08:04:30,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:30,340 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 285 transitions. [2023-11-19 08:04:30,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 08:04:30,340 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 285 transitions. [2023-11-19 08:04:30,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 08:04:30,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:30,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:30,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:04:30,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:30,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:30,342 INFO L85 PathProgramCache]: Analyzing trace with hash 556530162, now seen corresponding path program 1 times [2023-11-19 08:04:30,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:30,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754971610] [2023-11-19 08:04:30,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:30,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:30,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:30,529 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 08:04:30,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:30,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754971610] [2023-11-19 08:04:30,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754971610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:30,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:30,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:30,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481248657] [2023-11-19 08:04:30,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:30,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:30,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:30,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:30,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:30,533 INFO L87 Difference]: Start difference. First operand 197 states and 285 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 08:04:30,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:30,561 INFO L93 Difference]: Finished difference Result 199 states and 287 transitions. [2023-11-19 08:04:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:30,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 08:04:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:30,568 INFO L225 Difference]: With dead ends: 199 [2023-11-19 08:04:30,568 INFO L226 Difference]: Without dead ends: 198 [2023-11-19 08:04:30,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:30,579 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:30,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:30,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-19 08:04:30,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2023-11-19 08:04:30,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 188 states have (on average 1.4893617021276595) internal successors, (280), 193 states have internal predecessors, (280), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:04:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 286 transitions. [2023-11-19 08:04:30,613 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 286 transitions. Word has length 7 [2023-11-19 08:04:30,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:30,614 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 286 transitions. [2023-11-19 08:04:30,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 08:04:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 286 transitions. [2023-11-19 08:04:30,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 08:04:30,624 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:30,624 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:30,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:04:30,625 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:30,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash 816620890, now seen corresponding path program 1 times [2023-11-19 08:04:30,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:30,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584379485] [2023-11-19 08:04:30,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:30,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,134 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 08:04:31,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:31,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584379485] [2023-11-19 08:04:31,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584379485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:31,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:31,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:04:31,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709127476] [2023-11-19 08:04:31,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:31,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:04:31,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:31,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:04:31,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:31,140 INFO L87 Difference]: Start difference. First operand 198 states and 286 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 08:04:31,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:31,246 INFO L93 Difference]: Finished difference Result 393 states and 569 transitions. [2023-11-19 08:04:31,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:31,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2023-11-19 08:04:31,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:31,249 INFO L225 Difference]: With dead ends: 393 [2023-11-19 08:04:31,250 INFO L226 Difference]: Without dead ends: 202 [2023-11-19 08:04:31,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 08:04:31,253 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 169 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:31,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 608 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:31,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-11-19 08:04:31,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 198. [2023-11-19 08:04:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 188 states have (on average 1.452127659574468) internal successors, (273), 193 states have internal predecessors, (273), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:04:31,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 279 transitions. [2023-11-19 08:04:31,277 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 279 transitions. Word has length 80 [2023-11-19 08:04:31,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:31,277 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 279 transitions. [2023-11-19 08:04:31,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 08:04:31,278 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 279 transitions. [2023-11-19 08:04:31,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 08:04:31,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:31,282 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] [2023-11-19 08:04:31,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:04:31,282 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:31,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:31,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1385760590, now seen corresponding path program 1 times [2023-11-19 08:04:31,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:31,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660042571] [2023-11-19 08:04:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:31,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,613 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 08:04:31,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:31,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660042571] [2023-11-19 08:04:31,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660042571] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:31,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:31,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:31,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844643863] [2023-11-19 08:04:31,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:31,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:04:31,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:31,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:04:31,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:04:31,618 INFO L87 Difference]: Start difference. First operand 198 states and 279 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 08:04:31,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:31,704 INFO L93 Difference]: Finished difference Result 350 states and 485 transitions. [2023-11-19 08:04:31,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:04:31,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 80 [2023-11-19 08:04:31,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:31,707 INFO L225 Difference]: With dead ends: 350 [2023-11-19 08:04:31,707 INFO L226 Difference]: Without dead ends: 159 [2023-11-19 08:04:31,708 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 08:04:31,712 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 78 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:31,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 476 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:31,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-19 08:04:31,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-11-19 08:04:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 149 states have (on average 1.3557046979865772) internal successors, (202), 154 states have internal predecessors, (202), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:04:31,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 208 transitions. [2023-11-19 08:04:31,731 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 208 transitions. Word has length 80 [2023-11-19 08:04:31,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:31,731 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 208 transitions. [2023-11-19 08:04:31,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 08:04:31,732 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 208 transitions. [2023-11-19 08:04:31,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 08:04:31,742 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:31,742 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] [2023-11-19 08:04:31,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:04:31,743 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:31,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:31,744 INFO L85 PathProgramCache]: Analyzing trace with hash 509741584, now seen corresponding path program 1 times [2023-11-19 08:04:31,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:31,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371652095] [2023-11-19 08:04:31,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:31,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:31,942 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 08:04:31,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:31,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371652095] [2023-11-19 08:04:31,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371652095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:31,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:31,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:31,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897629630] [2023-11-19 08:04:31,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:31,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:31,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:31,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:31,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:31,946 INFO L87 Difference]: Start difference. First operand 159 states and 208 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 08:04:32,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:32,006 INFO L93 Difference]: Finished difference Result 381 states and 507 transitions. [2023-11-19 08:04:32,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:32,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2023-11-19 08:04:32,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:32,010 INFO L225 Difference]: With dead ends: 381 [2023-11-19 08:04:32,011 INFO L226 Difference]: Without dead ends: 229 [2023-11-19 08:04:32,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 08:04:32,012 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 52 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:32,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 388 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:32,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-11-19 08:04:32,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2023-11-19 08:04:32,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 219 states have (on average 1.365296803652968) internal successors, (299), 224 states have internal predecessors, (299), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 08:04:32,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 305 transitions. [2023-11-19 08:04:32,024 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 305 transitions. Word has length 80 [2023-11-19 08:04:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:32,025 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 305 transitions. [2023-11-19 08:04:32,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 08:04:32,025 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 305 transitions. [2023-11-19 08:04:32,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-19 08:04:32,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:32,027 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] [2023-11-19 08:04:32,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:04:32,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:32,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:32,028 INFO L85 PathProgramCache]: Analyzing trace with hash -842336969, now seen corresponding path program 1 times [2023-11-19 08:04:32,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:32,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380675013] [2023-11-19 08:04:32,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:32,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:04:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:32,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:04:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:32,408 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 08:04:32,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:32,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380675013] [2023-11-19 08:04:32,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380675013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:32,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:32,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:32,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294703487] [2023-11-19 08:04:32,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:32,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:04:32,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:32,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:04:32,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:32,412 INFO L87 Difference]: Start difference. First operand 229 states and 305 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 08:04:32,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:32,732 INFO L93 Difference]: Finished difference Result 294 states and 396 transitions. [2023-11-19 08:04:32,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:32,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 95 [2023-11-19 08:04:32,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:32,737 INFO L225 Difference]: With dead ends: 294 [2023-11-19 08:04:32,737 INFO L226 Difference]: Without dead ends: 292 [2023-11-19 08:04:32,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:32,739 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 98 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:32,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 839 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 08:04:32,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-19 08:04:32,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 289. [2023-11-19 08:04:32,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 276 states have (on average 1.3514492753623188) internal successors, (373), 281 states have internal predecessors, (373), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 08:04:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 385 transitions. [2023-11-19 08:04:32,754 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 385 transitions. Word has length 95 [2023-11-19 08:04:32,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:32,755 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 385 transitions. [2023-11-19 08:04:32,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 08:04:32,756 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 385 transitions. [2023-11-19 08:04:32,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 08:04:32,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:32,757 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, 1, 1] [2023-11-19 08:04:32,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:04:32,758 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:32,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:32,758 INFO L85 PathProgramCache]: Analyzing trace with hash -606240101, now seen corresponding path program 1 times [2023-11-19 08:04:32,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:32,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008023464] [2023-11-19 08:04:32,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:32,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:33,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:04:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:04:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:33,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:33,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008023464] [2023-11-19 08:04:33,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008023464] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:33,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065037090] [2023-11-19 08:04:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:33,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:33,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:33,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:33,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:04:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:33,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:04:33,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:33,722 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:33,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:33,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065037090] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:33,922 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:04:33,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2023-11-19 08:04:33,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019593318] [2023-11-19 08:04:33,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:33,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:04:33,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:33,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:04:33,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:04:33,927 INFO L87 Difference]: Start difference. First operand 289 states and 385 transitions. Second operand has 11 states, 11 states have (on average 24.09090909090909) internal successors, (265), 10 states have internal predecessors, (265), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 08:04:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:34,379 INFO L93 Difference]: Finished difference Result 441 states and 596 transitions. [2023-11-19 08:04:34,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:04:34,381 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 24.09090909090909) internal successors, (265), 10 states have internal predecessors, (265), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 100 [2023-11-19 08:04:34,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:34,384 INFO L225 Difference]: With dead ends: 441 [2023-11-19 08:04:34,385 INFO L226 Difference]: Without dead ends: 433 [2023-11-19 08:04:34,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-11-19 08:04:34,386 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 655 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:34,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 1039 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:04:34,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-11-19 08:04:34,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 427. [2023-11-19 08:04:34,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 411 states have (on average 1.3527980535279804) internal successors, (556), 416 states have internal predecessors, (556), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 08:04:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 574 transitions. [2023-11-19 08:04:34,415 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 574 transitions. Word has length 100 [2023-11-19 08:04:34,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:34,417 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 574 transitions. [2023-11-19 08:04:34,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 24.09090909090909) internal successors, (265), 10 states have internal predecessors, (265), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 08:04:34,420 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 574 transitions. [2023-11-19 08:04:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 08:04:34,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:34,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:34,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:34,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:34,635 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:34,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:34,635 INFO L85 PathProgramCache]: Analyzing trace with hash -606891699, now seen corresponding path program 1 times [2023-11-19 08:04:34,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:34,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428375051] [2023-11-19 08:04:34,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:34,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:04:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:35,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:04:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:35,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:35,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428375051] [2023-11-19 08:04:35,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428375051] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:35,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934163624] [2023-11-19 08:04:35,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:35,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:35,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:35,506 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:35,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 08:04:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:35,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 08:04:35,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:36,149 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:36,150 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:36,362 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:36,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934163624] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:36,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:04:36,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2023-11-19 08:04:36,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861020534] [2023-11-19 08:04:36,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:36,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 08:04:36,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:36,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 08:04:36,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:04:36,366 INFO L87 Difference]: Start difference. First operand 427 states and 574 transitions. Second operand has 14 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:38,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 08:04:38,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:38,747 INFO L93 Difference]: Finished difference Result 584 states and 791 transitions. [2023-11-19 08:04:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 08:04:38,749 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 100 [2023-11-19 08:04:38,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:38,753 INFO L225 Difference]: With dead ends: 584 [2023-11-19 08:04:38,754 INFO L226 Difference]: Without dead ends: 583 [2023-11-19 08:04:38,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2023-11-19 08:04:38,755 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 544 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:38,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 1565 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 08:04:38,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2023-11-19 08:04:38,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 567. [2023-11-19 08:04:38,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 548 states have (on average 1.352189781021898) internal successors, (741), 553 states have internal predecessors, (741), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 08:04:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 765 transitions. [2023-11-19 08:04:38,795 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 765 transitions. Word has length 100 [2023-11-19 08:04:38,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:38,796 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 765 transitions. [2023-11-19 08:04:38,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:38,796 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 765 transitions. [2023-11-19 08:04:38,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 08:04:38,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:38,797 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:38,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:39,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:39,011 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:39,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:39,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1633773426, now seen corresponding path program 1 times [2023-11-19 08:04:39,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:39,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876855913] [2023-11-19 08:04:39,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:39,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:04:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:39,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:04:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:39,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:39,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876855913] [2023-11-19 08:04:39,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876855913] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:39,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101952786] [2023-11-19 08:04:39,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:39,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:39,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:39,795 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:39,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 08:04:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:40,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 08:04:40,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:40,411 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:40,621 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:40,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101952786] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:40,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:04:40,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2023-11-19 08:04:40,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688048891] [2023-11-19 08:04:40,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:40,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 08:04:40,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:40,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 08:04:40,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:04:40,625 INFO L87 Difference]: Start difference. First operand 567 states and 765 transitions. Second operand has 14 states, 13 states have (on average 14.923076923076923) internal successors, (194), 13 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:41,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:41,096 INFO L93 Difference]: Finished difference Result 581 states and 788 transitions. [2023-11-19 08:04:41,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 08:04:41,097 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.923076923076923) internal successors, (194), 13 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 101 [2023-11-19 08:04:41,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:41,101 INFO L225 Difference]: With dead ends: 581 [2023-11-19 08:04:41,102 INFO L226 Difference]: Without dead ends: 580 [2023-11-19 08:04:41,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-19 08:04:41,103 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 581 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:41,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 1818 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:04:41,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2023-11-19 08:04:41,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 568. [2023-11-19 08:04:41,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 549 states have (on average 1.3479052823315119) internal successors, (740), 554 states have internal predecessors, (740), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 08:04:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 764 transitions. [2023-11-19 08:04:41,134 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 764 transitions. Word has length 101 [2023-11-19 08:04:41,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:41,134 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 764 transitions. [2023-11-19 08:04:41,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.923076923076923) internal successors, (194), 13 states have internal predecessors, (194), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:41,135 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 764 transitions. [2023-11-19 08:04:41,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-11-19 08:04:41,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:41,137 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:41,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:41,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:41,359 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:41,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:41,360 INFO L85 PathProgramCache]: Analyzing trace with hash 130611956, now seen corresponding path program 1 times [2023-11-19 08:04:41,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:41,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901302251] [2023-11-19 08:04:41,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:41,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:04:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:42,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:04:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:42,051 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:42,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:42,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901302251] [2023-11-19 08:04:42,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901302251] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:42,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40476774] [2023-11-19 08:04:42,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:42,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:42,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:42,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:42,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 08:04:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:42,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:04:42,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:42,882 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:42,882 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:04:42,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40476774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:42,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 08:04:42,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2023-11-19 08:04:42,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497981586] [2023-11-19 08:04:42,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:42,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:04:42,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:42,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:04:42,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:04:42,886 INFO L87 Difference]: Start difference. First operand 568 states and 764 transitions. Second operand has 6 states, 5 states have (on average 33.4) internal successors, (167), 6 states have internal predecessors, (167), 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 08:04:42,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:42,985 INFO L93 Difference]: Finished difference Result 568 states and 764 transitions. [2023-11-19 08:04:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:04:42,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.4) internal successors, (167), 6 states have internal predecessors, (167), 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 174 [2023-11-19 08:04:42,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:42,991 INFO L225 Difference]: With dead ends: 568 [2023-11-19 08:04:42,991 INFO L226 Difference]: Without dead ends: 567 [2023-11-19 08:04:42,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:04:42,992 INFO L413 NwaCegarLoop]: 332 mSDtfsCounter, 259 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:42,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 1176 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:42,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2023-11-19 08:04:43,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2023-11-19 08:04:43,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 549 states have (on average 1.342440801457195) internal successors, (737), 553 states have internal predecessors, (737), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 08:04:43,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 761 transitions. [2023-11-19 08:04:43,027 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 761 transitions. Word has length 174 [2023-11-19 08:04:43,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:43,028 INFO L495 AbstractCegarLoop]: Abstraction has 567 states and 761 transitions. [2023-11-19 08:04:43,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.4) internal successors, (167), 6 states have internal predecessors, (167), 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 08:04:43,028 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 761 transitions. [2023-11-19 08:04:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-19 08:04:43,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:43,033 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:43,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:43,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:43,247 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:43,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:43,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1751717306, now seen corresponding path program 1 times [2023-11-19 08:04:43,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:43,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161266071] [2023-11-19 08:04:43,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:43,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:43,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:04:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:43,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:04:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:43,881 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-11-19 08:04:43,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:43,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161266071] [2023-11-19 08:04:43,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161266071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:43,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:43,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:04:43,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056002989] [2023-11-19 08:04:43,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:43,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:04:43,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:43,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:04:43,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:04:43,887 INFO L87 Difference]: Start difference. First operand 567 states and 761 transitions. Second operand has 5 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 08:04:44,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:44,167 INFO L93 Difference]: Finished difference Result 570 states and 776 transitions. [2023-11-19 08:04:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:44,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 254 [2023-11-19 08:04:44,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:44,173 INFO L225 Difference]: With dead ends: 570 [2023-11-19 08:04:44,173 INFO L226 Difference]: Without dead ends: 569 [2023-11-19 08:04:44,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:44,175 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 107 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:44,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 551 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:04:44,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2023-11-19 08:04:44,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 566. [2023-11-19 08:04:44,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 549 states have (on average 1.3387978142076502) internal successors, (735), 552 states have internal predecessors, (735), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 08:04:44,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 759 transitions. [2023-11-19 08:04:44,211 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 759 transitions. Word has length 254 [2023-11-19 08:04:44,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:44,212 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 759 transitions. [2023-11-19 08:04:44,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 08:04:44,212 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 759 transitions. [2023-11-19 08:04:44,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-19 08:04:44,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:44,217 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:44,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 08:04:44,217 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:44,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:44,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1039341509, now seen corresponding path program 1 times [2023-11-19 08:04:44,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:44,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077723725] [2023-11-19 08:04:44,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:44,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:45,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:04:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:45,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:04:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:45,283 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:45,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077723725] [2023-11-19 08:04:45,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077723725] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:45,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088042911] [2023-11-19 08:04:45,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:45,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:45,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:45,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:45,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 08:04:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:45,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 08:04:45,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:46,340 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:46,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:46,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088042911] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:46,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:04:46,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2023-11-19 08:04:46,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016554601] [2023-11-19 08:04:46,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:46,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-19 08:04:46,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:46,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-19 08:04:46,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-11-19 08:04:46,879 INFO L87 Difference]: Start difference. First operand 566 states and 759 transitions. Second operand has 19 states, 19 states have (on average 30.57894736842105) internal successors, (581), 18 states have internal predecessors, (581), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 08:04:47,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:47,542 INFO L93 Difference]: Finished difference Result 987 states and 1348 transitions. [2023-11-19 08:04:47,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 08:04:47,544 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 30.57894736842105) internal successors, (581), 18 states have internal predecessors, (581), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 258 [2023-11-19 08:04:47,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:47,551 INFO L225 Difference]: With dead ends: 987 [2023-11-19 08:04:47,551 INFO L226 Difference]: Without dead ends: 980 [2023-11-19 08:04:47,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 510 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2023-11-19 08:04:47,553 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1536 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:47,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 2488 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 08:04:47,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 980 states. [2023-11-19 08:04:47,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 980 to 973. [2023-11-19 08:04:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 947 states have (on average 1.3421330517423442) internal successors, (1271), 950 states have internal predecessors, (1271), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 08:04:47,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1313 transitions. [2023-11-19 08:04:47,603 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1313 transitions. Word has length 258 [2023-11-19 08:04:47,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:47,604 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1313 transitions. [2023-11-19 08:04:47,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 30.57894736842105) internal successors, (581), 18 states have internal predecessors, (581), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 08:04:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1313 transitions. [2023-11-19 08:04:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-11-19 08:04:47,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:47,611 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:47,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:47,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:47,827 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:47,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:47,827 INFO L85 PathProgramCache]: Analyzing trace with hash -929677296, now seen corresponding path program 1 times [2023-11-19 08:04:47,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:47,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139264840] [2023-11-19 08:04:47,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:47,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:52,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:04:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:04:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:52,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:52,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139264840] [2023-11-19 08:04:52,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139264840] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:52,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502095440] [2023-11-19 08:04:52,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:52,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:52,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:52,347 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:52,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 08:04:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:53,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-19 08:04:53,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:53,918 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:53,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:54,626 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:54,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502095440] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:54,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:04:54,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2023-11-19 08:04:54,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590781710] [2023-11-19 08:04:54,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:54,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-19 08:04:54,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:54,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-19 08:04:54,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2023-11-19 08:04:54,633 INFO L87 Difference]: Start difference. First operand 973 states and 1313 transitions. Second operand has 29 states, 28 states have (on average 24.071428571428573) internal successors, (674), 28 states have internal predecessors, (674), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:55,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:55,595 INFO L93 Difference]: Finished difference Result 1416 states and 1934 transitions. [2023-11-19 08:04:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-19 08:04:55,596 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 24.071428571428573) internal successors, (674), 28 states have internal predecessors, (674), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 337 [2023-11-19 08:04:55,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:55,607 INFO L225 Difference]: With dead ends: 1416 [2023-11-19 08:04:55,607 INFO L226 Difference]: Without dead ends: 1415 [2023-11-19 08:04:55,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=481, Invalid=1079, Unknown=0, NotChecked=0, Total=1560 [2023-11-19 08:04:55,609 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1963 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:55,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 2975 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 08:04:55,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2023-11-19 08:04:55,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1387. [2023-11-19 08:04:55,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1352 states have (on average 1.342455621301775) internal successors, (1815), 1355 states have internal predecessors, (1815), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 08:04:55,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1875 transitions. [2023-11-19 08:04:55,676 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1875 transitions. Word has length 337 [2023-11-19 08:04:55,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:55,676 INFO L495 AbstractCegarLoop]: Abstraction has 1387 states and 1875 transitions. [2023-11-19 08:04:55,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 24.071428571428573) internal successors, (674), 28 states have internal predecessors, (674), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:04:55,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1875 transitions. [2023-11-19 08:04:55,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-11-19 08:04:55,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:55,686 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:55,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:55,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 08:04:55,910 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:04:55,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:55,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1244774955, now seen corresponding path program 1 times [2023-11-19 08:04:55,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:55,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58856927] [2023-11-19 08:04:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:55,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:59,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:04:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:59,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:04:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:59,842 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:04:59,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:59,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58856927] [2023-11-19 08:04:59,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58856927] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:59,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345604023] [2023-11-19 08:04:59,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:59,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:59,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:59,844 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:59,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 08:05:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:00,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 08:05:00,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:05:01,373 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:05:01,373 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:05:02,050 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:05:02,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345604023] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:05:02,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:05:02,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2023-11-19 08:05:02,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565567397] [2023-11-19 08:05:02,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:05:02,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-19 08:05:02,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:05:02,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-19 08:05:02,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2023-11-19 08:05:02,056 INFO L87 Difference]: Start difference. First operand 1387 states and 1875 transitions. Second operand has 29 states, 28 states have (on average 24.178571428571427) internal successors, (677), 28 states have internal predecessors, (677), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:05:02,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:05:02,998 INFO L93 Difference]: Finished difference Result 1410 states and 1928 transitions. [2023-11-19 08:05:02,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-19 08:05:02,999 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 24.178571428571427) internal successors, (677), 28 states have internal predecessors, (677), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 338 [2023-11-19 08:05:03,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:05:03,010 INFO L225 Difference]: With dead ends: 1410 [2023-11-19 08:05:03,010 INFO L226 Difference]: Without dead ends: 1409 [2023-11-19 08:05:03,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 694 GetRequests, 662 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=782, Unknown=0, NotChecked=0, Total=1122 [2023-11-19 08:05:03,014 INFO L413 NwaCegarLoop]: 354 mSDtfsCounter, 1777 mSDsluCounter, 4343 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 4697 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:05:03,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 4697 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 08:05:03,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2023-11-19 08:05:03,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1388. [2023-11-19 08:05:03,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1388 states, 1353 states have (on average 1.3385070214338508) internal successors, (1811), 1356 states have internal predecessors, (1811), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 08:05:03,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1388 states to 1388 states and 1871 transitions. [2023-11-19 08:05:03,101 INFO L78 Accepts]: Start accepts. Automaton has 1388 states and 1871 transitions. Word has length 338 [2023-11-19 08:05:03,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:05:03,102 INFO L495 AbstractCegarLoop]: Abstraction has 1388 states and 1871 transitions. [2023-11-19 08:05:03,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 24.178571428571427) internal successors, (677), 28 states have internal predecessors, (677), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 08:05:03,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1388 states and 1871 transitions. [2023-11-19 08:05:03,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2023-11-19 08:05:03,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:05:03,120 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:05:03,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 08:05:03,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:03,335 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-19 08:05:03,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:05:03,336 INFO L85 PathProgramCache]: Analyzing trace with hash 798157691, now seen corresponding path program 2 times [2023-11-19 08:05:03,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:05:03,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004356090] [2023-11-19 08:05:03,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:05:03,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:05:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:06,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:05:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:06,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-19 08:05:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:05:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1658 backedges. 0 proven. 1654 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 08:05:06,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:05:06,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004356090] [2023-11-19 08:05:06,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004356090] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:05:06,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369958692] [2023-11-19 08:05:06,286 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 08:05:06,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:05:06,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:05:06,291 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:05:06,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2bb6a2e-f4f9-485d-a59e-1739c6e49a6b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 08:05:07,501 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 08:05:07,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 08:05:07,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 08:05:07,531 INFO L285 TraceCheckSpWp]: Computing forward predicates...