./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/logname-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/logname-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1adc753a2af9d9a8eb85b88c58b048195e83a61458ae5864af76d1e73e91ec74 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:19:58,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:19:58,363 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-21 22:19:58,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:19:58,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:19:58,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:19:58,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:19:58,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:19:58,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:19:58,409 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:19:58,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:19:58,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:19:58,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:19:58,414 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:19:58,415 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:19:58,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:19:58,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:19:58,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:19:58,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:19:58,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:19:58,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:19:58,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:19:58,425 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:19:58,425 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:19:58,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:19:58,426 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:19:58,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:19:58,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:19:58,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:19:58,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:19:58,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:19:58,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:19:58,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:19:58,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:19:58,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:19:58,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:19:58,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:19:58,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:19:58,432 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:19:58,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:19:58,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:19:58,433 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_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1adc753a2af9d9a8eb85b88c58b048195e83a61458ae5864af76d1e73e91ec74 [2023-11-21 22:19:58,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:19:58,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:19:58,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:19:58,804 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:19:58,805 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:19:58,806 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/busybox-1.22.0/logname-2.i [2023-11-21 22:20:02,022 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:20:02,463 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:20:02,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/sv-benchmarks/c/busybox-1.22.0/logname-2.i [2023-11-21 22:20:02,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/data/fa78fb68a/6347086dbbb34673841a00f40005c349/FLAG624c9a4b0 [2023-11-21 22:20:02,526 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/data/fa78fb68a/6347086dbbb34673841a00f40005c349 [2023-11-21 22:20:02,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:20:02,535 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:20:02,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:02,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:20:02,546 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:20:02,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:02" (1/1) ... [2023-11-21 22:20:02,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55945382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:02, skipping insertion in model container [2023-11-21 22:20:02,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:02" (1/1) ... [2023-11-21 22:20:02,632 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:20:04,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:04,148 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:20:04,396 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:04,599 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:04,600 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:04,600 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:04,608 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:20:04,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04 WrapperNode [2023-11-21 22:20:04,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:04,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:04,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:20:04,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:20:04,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,749 INFO L138 Inliner]: procedures = 594, calls = 155, calls flagged for inlining = 16, calls inlined = 14, statements flattened = 541 [2023-11-21 22:20:04,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:04,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:20:04,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:20:04,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:20:04,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,776 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,791 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-21 22:20:04,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:20:04,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:20:04,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:20:04,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:20:04,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (1/1) ... [2023-11-21 22:20:04,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:04,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:04,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:04,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:20:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-21 22:20:04,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:20:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:20:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:20:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:20:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:20:04,955 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-21 22:20:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:20:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:20:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:20:04,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:20:04,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-21 22:20:04,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-21 22:20:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:20:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:20:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:20:04,957 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:20:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:20:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:20:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2023-11-21 22:20:04,958 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2023-11-21 22:20:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:20:04,958 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-21 22:20:04,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:20:05,391 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:20:05,395 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:20:06,102 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:06,311 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:06,312 INFO L308 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-21 22:20:06,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:06 BoogieIcfgContainer [2023-11-21 22:20:06,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:06,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:20:06,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:20:06,320 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:20:06,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:20:02" (1/3) ... [2023-11-21 22:20:06,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b20e0e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:06, skipping insertion in model container [2023-11-21 22:20:06,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:04" (2/3) ... [2023-11-21 22:20:06,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b20e0e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:06, skipping insertion in model container [2023-11-21 22:20:06,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:06" (3/3) ... [2023-11-21 22:20:06,323 INFO L112 eAbstractionObserver]: Analyzing ICFG logname-2.i [2023-11-21 22:20:06,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:20:06,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-11-21 22:20:06,398 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:20:06,406 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;@5544458c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:20:06,406 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-21 22:20:06,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 95 states have (on average 1.7263157894736842) internal successors, (164), 137 states have internal predecessors, (164), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:06,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:20:06,420 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:06,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:20:06,421 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:06,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:06,426 INFO L85 PathProgramCache]: Analyzing trace with hash 469097, now seen corresponding path program 1 times [2023-11-21 22:20:06,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:06,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329712882] [2023-11-21 22:20:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:06,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:06,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:06,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:06,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:06,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329712882] [2023-11-21 22:20:06,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329712882] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:06,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:06,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:20:06,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625561522] [2023-11-21 22:20:06,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:06,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:06,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:06,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:06,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:06,989 INFO L87 Difference]: Start difference. First operand has 153 states, 95 states have (on average 1.7263157894736842) internal successors, (164), 137 states have internal predecessors, (164), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:07,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:07,169 INFO L93 Difference]: Finished difference Result 305 states and 379 transitions. [2023-11-21 22:20:07,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:07,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-21 22:20:07,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:07,184 INFO L225 Difference]: With dead ends: 305 [2023-11-21 22:20:07,184 INFO L226 Difference]: Without dead ends: 152 [2023-11-21 22:20:07,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:07,198 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:07,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 318 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:07,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-21 22:20:07,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2023-11-21 22:20:07,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 95 states have (on average 1.6421052631578947) internal successors, (156), 136 states have internal predecessors, (156), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:07,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 180 transitions. [2023-11-21 22:20:07,250 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 180 transitions. Word has length 3 [2023-11-21 22:20:07,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:07,250 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 180 transitions. [2023-11-21 22:20:07,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:07,251 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 180 transitions. [2023-11-21 22:20:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:20:07,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:07,252 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-21 22:20:07,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:20:07,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:07,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:07,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1090035199, now seen corresponding path program 1 times [2023-11-21 22:20:07,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:07,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554959645] [2023-11-21 22:20:07,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:07,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:07,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:07,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554959645] [2023-11-21 22:20:07,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554959645] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:07,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884862382] [2023-11-21 22:20:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:07,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:07,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:07,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:07,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:20:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:07,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:20:07,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:07,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:07,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:07,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884862382] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:07,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:20:07,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-21 22:20:07,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799258258] [2023-11-21 22:20:07,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:07,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:07,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:07,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:07,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:07,777 INFO L87 Difference]: Start difference. First operand 152 states and 180 transitions. Second operand has 4 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) [2023-11-21 22:20:07,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:07,887 INFO L93 Difference]: Finished difference Result 152 states and 180 transitions. [2023-11-21 22:20:07,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:07,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2023-11-21 22:20:07,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:07,894 INFO L225 Difference]: With dead ends: 152 [2023-11-21 22:20:07,895 INFO L226 Difference]: Without dead ends: 151 [2023-11-21 22:20:07,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:07,901 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 2 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:07,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 462 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:07,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-21 22:20:07,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-21 22:20:07,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 95 states have (on average 1.631578947368421) internal successors, (155), 135 states have internal predecessors, (155), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:07,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 179 transitions. [2023-11-21 22:20:07,932 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 179 transitions. Word has length 6 [2023-11-21 22:20:07,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:07,932 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 179 transitions. [2023-11-21 22:20:07,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2023-11-21 22:20:07,933 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 179 transitions. [2023-11-21 22:20:07,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:20:07,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:07,935 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-21 22:20:07,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:08,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:08,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:08,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:08,162 INFO L85 PathProgramCache]: Analyzing trace with hash -568647130, now seen corresponding path program 1 times [2023-11-21 22:20:08,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:08,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716500844] [2023-11-21 22:20:08,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:08,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:08,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:20:08,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:08,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716500844] [2023-11-21 22:20:08,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716500844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:08,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:08,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:08,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262626487] [2023-11-21 22:20:08,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:08,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:08,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:08,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:08,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:08,296 INFO L87 Difference]: Start difference. First operand 151 states and 179 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-21 22:20:08,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:08,365 INFO L93 Difference]: Finished difference Result 151 states and 179 transitions. [2023-11-21 22:20:08,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:08,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2023-11-21 22:20:08,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:08,367 INFO L225 Difference]: With dead ends: 151 [2023-11-21 22:20:08,367 INFO L226 Difference]: Without dead ends: 150 [2023-11-21 22:20:08,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:08,369 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:08,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 308 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-21 22:20:08,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2023-11-21 22:20:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 93 states have (on average 1.6344086021505377) internal successors, (152), 132 states have internal predecessors, (152), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:08,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 176 transitions. [2023-11-21 22:20:08,391 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 176 transitions. Word has length 7 [2023-11-21 22:20:08,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:08,392 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 176 transitions. [2023-11-21 22:20:08,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-21 22:20:08,392 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 176 transitions. [2023-11-21 22:20:08,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:20:08,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:08,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:08,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:20:08,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:08,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:08,395 INFO L85 PathProgramCache]: Analyzing trace with hash -595350448, now seen corresponding path program 1 times [2023-11-21 22:20:08,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:08,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748494691] [2023-11-21 22:20:08,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:08,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:20:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:08,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:08,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:08,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748494691] [2023-11-21 22:20:08,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748494691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:08,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746454499] [2023-11-21 22:20:08,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:08,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:08,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:08,567 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:08,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:20:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:08,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:20:08,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:08,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:20:08,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:08,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746454499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:08,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:20:08,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-21 22:20:08,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429870652] [2023-11-21 22:20:08,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:08,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:08,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:08,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:08,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:08,808 INFO L87 Difference]: Start difference. First operand 148 states and 176 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:08,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:08,870 INFO L93 Difference]: Finished difference Result 148 states and 176 transitions. [2023-11-21 22:20:08,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:08,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-11-21 22:20:08,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:08,872 INFO L225 Difference]: With dead ends: 148 [2023-11-21 22:20:08,872 INFO L226 Difference]: Without dead ends: 146 [2023-11-21 22:20:08,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:08,874 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 137 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:08,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 167 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:08,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-11-21 22:20:08,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2023-11-21 22:20:08,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 93 states have (on average 1.6129032258064515) internal successors, (150), 130 states have internal predecessors, (150), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:08,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 174 transitions. [2023-11-21 22:20:08,902 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 174 transitions. Word has length 9 [2023-11-21 22:20:08,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:08,903 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 174 transitions. [2023-11-21 22:20:08,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 174 transitions. [2023-11-21 22:20:08,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 22:20:08,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:08,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:08,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:09,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:09,131 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:09,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:09,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1275994626, now seen corresponding path program 1 times [2023-11-21 22:20:09,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:09,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618160513] [2023-11-21 22:20:09,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:09,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:09,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:09,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:20:09,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:09,259 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:09,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:09,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618160513] [2023-11-21 22:20:09,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618160513] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:09,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263107234] [2023-11-21 22:20:09,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:09,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:09,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:09,261 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:09,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:20:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:09,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:20:09,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:09,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:09,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:20:09,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:09,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263107234] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:20:09,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:20:09,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-21 22:20:09,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286914187] [2023-11-21 22:20:09,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:20:09,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:20:09,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:09,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:20:09,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:09,503 INFO L87 Difference]: Start difference. First operand 146 states and 174 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:20:09,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:09,594 INFO L93 Difference]: Finished difference Result 296 states and 354 transitions. [2023-11-21 22:20:09,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:09,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 10 [2023-11-21 22:20:09,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:09,596 INFO L225 Difference]: With dead ends: 296 [2023-11-21 22:20:09,596 INFO L226 Difference]: Without dead ends: 155 [2023-11-21 22:20:09,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:09,603 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 4 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:09,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 456 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:09,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-21 22:20:09,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-21 22:20:09,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 102 states have (on average 1.5588235294117647) internal successors, (159), 139 states have internal predecessors, (159), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 183 transitions. [2023-11-21 22:20:09,618 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 183 transitions. Word has length 10 [2023-11-21 22:20:09,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:09,619 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 183 transitions. [2023-11-21 22:20:09,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:20:09,619 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 183 transitions. [2023-11-21 22:20:09,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-21 22:20:09,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:09,620 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:09,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:09,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:09,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:09,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:09,834 INFO L85 PathProgramCache]: Analyzing trace with hash 142595048, now seen corresponding path program 2 times [2023-11-21 22:20:09,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:09,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139068064] [2023-11-21 22:20:09,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:09,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:20:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:10,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:10,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139068064] [2023-11-21 22:20:10,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139068064] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:10,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221625982] [2023-11-21 22:20:10,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:20:10,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:10,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:10,078 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:10,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:20:10,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 22:20:10,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:20:10,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:20:10,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:10,320 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-21 22:20:10,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:10,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221625982] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:10,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:20:10,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-11-21 22:20:10,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274016000] [2023-11-21 22:20:10,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:10,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:10,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:10,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:10,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:20:10,324 INFO L87 Difference]: Start difference. First operand 155 states and 183 transitions. Second operand has 4 states, 2 states have (on average 4.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:10,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:10,443 INFO L93 Difference]: Finished difference Result 155 states and 183 transitions. [2023-11-21 22:20:10,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:10,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 2 states have (on average 4.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2023-11-21 22:20:10,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:10,446 INFO L225 Difference]: With dead ends: 155 [2023-11-21 22:20:10,447 INFO L226 Difference]: Without dead ends: 153 [2023-11-21 22:20:10,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:20:10,448 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 134 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:10,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 296 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:10,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-21 22:20:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-11-21 22:20:10,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 102 states have (on average 1.5392156862745099) internal successors, (157), 137 states have internal predecessors, (157), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 181 transitions. [2023-11-21 22:20:10,463 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 181 transitions. Word has length 19 [2023-11-21 22:20:10,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:10,463 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 181 transitions. [2023-11-21 22:20:10,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 2 states have (on average 4.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 181 transitions. [2023-11-21 22:20:10,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 22:20:10,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:10,465 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:10,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:10,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:10,680 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:10,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:10,681 INFO L85 PathProgramCache]: Analyzing trace with hash 232675827, now seen corresponding path program 1 times [2023-11-21 22:20:10,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:10,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974038182] [2023-11-21 22:20:10,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:10,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:10,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:20:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:10,834 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-21 22:20:10,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:10,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974038182] [2023-11-21 22:20:10,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974038182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:10,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:10,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:10,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851427899] [2023-11-21 22:20:10,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:10,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:10,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:10,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:10,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:10,836 INFO L87 Difference]: Start difference. First operand 153 states and 181 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:10,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:10,902 INFO L93 Difference]: Finished difference Result 290 states and 347 transitions. [2023-11-21 22:20:10,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:10,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-21 22:20:10,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:10,904 INFO L225 Difference]: With dead ends: 290 [2023-11-21 22:20:10,904 INFO L226 Difference]: Without dead ends: 156 [2023-11-21 22:20:10,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:10,905 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:10,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 297 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:10,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-21 22:20:10,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2023-11-21 22:20:10,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 105 states have (on average 1.5238095238095237) internal successors, (160), 140 states have internal predecessors, (160), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:10,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 184 transitions. [2023-11-21 22:20:10,928 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 184 transitions. Word has length 24 [2023-11-21 22:20:10,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:10,930 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 184 transitions. [2023-11-21 22:20:10,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:10,931 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 184 transitions. [2023-11-21 22:20:10,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-21 22:20:10,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:10,933 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:10,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:20:10,933 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:10,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:10,934 INFO L85 PathProgramCache]: Analyzing trace with hash -431551465, now seen corresponding path program 1 times [2023-11-21 22:20:10,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:10,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625385310] [2023-11-21 22:20:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:10,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-21 22:20:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-21 22:20:11,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:11,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625385310] [2023-11-21 22:20:11,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625385310] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:11,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640067871] [2023-11-21 22:20:11,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:11,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:11,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:11,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:11,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:20:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:11,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:20:11,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:11,478 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:20:11,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:20:11,586 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:20:11,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640067871] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:20:11,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:20:11,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-21 22:20:11,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117025747] [2023-11-21 22:20:11,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:20:11,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 22:20:11,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:11,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:20:11,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:20:11,589 INFO L87 Difference]: Start difference. First operand 156 states and 184 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:20:11,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:11,817 INFO L93 Difference]: Finished difference Result 315 states and 377 transitions. [2023-11-21 22:20:11,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:20:11,821 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2023-11-21 22:20:11,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:11,823 INFO L225 Difference]: With dead ends: 315 [2023-11-21 22:20:11,823 INFO L226 Difference]: Without dead ends: 173 [2023-11-21 22:20:11,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:20:11,824 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 6 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:11,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 868 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:20:11,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-21 22:20:11,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-11-21 22:20:11,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 123 states have (on average 1.4390243902439024) internal successors, (177), 157 states have internal predecessors, (177), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:11,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 201 transitions. [2023-11-21 22:20:11,836 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 201 transitions. Word has length 27 [2023-11-21 22:20:11,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:11,836 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 201 transitions. [2023-11-21 22:20:11,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:20:11,837 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 201 transitions. [2023-11-21 22:20:11,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-21 22:20:11,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:11,838 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:11,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:12,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:12,057 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:12,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:12,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1871289835, now seen corresponding path program 1 times [2023-11-21 22:20:12,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:12,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552837737] [2023-11-21 22:20:12,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:12,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:12,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-21 22:20:12,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:12,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552837737] [2023-11-21 22:20:12,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552837737] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:12,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:12,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:12,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228016578] [2023-11-21 22:20:12,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:12,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:12,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:12,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:12,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:12,305 INFO L87 Difference]: Start difference. First operand 173 states and 201 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:12,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:12,387 INFO L93 Difference]: Finished difference Result 185 states and 215 transitions. [2023-11-21 22:20:12,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:12,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2023-11-21 22:20:12,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:12,390 INFO L225 Difference]: With dead ends: 185 [2023-11-21 22:20:12,390 INFO L226 Difference]: Without dead ends: 183 [2023-11-21 22:20:12,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:12,391 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 2 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:12,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 293 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:12,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-21 22:20:12,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2023-11-21 22:20:12,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 132 states have (on average 1.4318181818181819) internal successors, (189), 166 states have internal predecessors, (189), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:12,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 213 transitions. [2023-11-21 22:20:12,403 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 213 transitions. Word has length 45 [2023-11-21 22:20:12,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:12,404 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 213 transitions. [2023-11-21 22:20:12,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:12,404 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 213 transitions. [2023-11-21 22:20:12,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-21 22:20:12,406 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:12,406 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:12,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:20:12,407 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:12,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:12,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1291159275, now seen corresponding path program 1 times [2023-11-21 22:20:12,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:12,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586321012] [2023-11-21 22:20:12,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:12,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:12,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:12,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:12,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586321012] [2023-11-21 22:20:12,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586321012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:12,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:12,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:12,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515797086] [2023-11-21 22:20:12,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:12,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:12,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:12,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:12,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:12,601 INFO L87 Difference]: Start difference. First operand 182 states and 213 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:20:12,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:12,668 INFO L93 Difference]: Finished difference Result 187 states and 219 transitions. [2023-11-21 22:20:12,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:12,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2023-11-21 22:20:12,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:12,678 INFO L225 Difference]: With dead ends: 187 [2023-11-21 22:20:12,679 INFO L226 Difference]: Without dead ends: 185 [2023-11-21 22:20:12,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:12,680 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:12,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 294 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-21 22:20:12,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-11-21 22:20:12,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 135 states have (on average 1.4296296296296296) internal successors, (193), 169 states have internal predecessors, (193), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:12,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 217 transitions. [2023-11-21 22:20:12,693 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 217 transitions. Word has length 47 [2023-11-21 22:20:12,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:12,694 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 217 transitions. [2023-11-21 22:20:12,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:20:12,694 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 217 transitions. [2023-11-21 22:20:12,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 22:20:12,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:12,697 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:12,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:20:12,698 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:12,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:12,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2119946640, now seen corresponding path program 1 times [2023-11-21 22:20:12,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:12,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732379579] [2023-11-21 22:20:12,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:12,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:12,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:12,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-21 22:20:12,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:12,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732379579] [2023-11-21 22:20:12,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732379579] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:12,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:12,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:12,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276548853] [2023-11-21 22:20:12,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:12,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:12,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:12,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:12,894 INFO L87 Difference]: Start difference. First operand 185 states and 217 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:12,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:12,976 INFO L93 Difference]: Finished difference Result 185 states and 217 transitions. [2023-11-21 22:20:12,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:12,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2023-11-21 22:20:12,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:12,980 INFO L225 Difference]: With dead ends: 185 [2023-11-21 22:20:12,981 INFO L226 Difference]: Without dead ends: 184 [2023-11-21 22:20:12,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:12,982 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:12,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 295 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:12,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-21 22:20:12,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 180. [2023-11-21 22:20:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 131 states have (on average 1.4274809160305344) internal successors, (187), 164 states have internal predecessors, (187), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 211 transitions. [2023-11-21 22:20:12,996 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 211 transitions. Word has length 46 [2023-11-21 22:20:12,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:12,997 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 211 transitions. [2023-11-21 22:20:12,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 211 transitions. [2023-11-21 22:20:13,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-21 22:20:13,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:13,004 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:13,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:20:13,004 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:13,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:13,005 INFO L85 PathProgramCache]: Analyzing trace with hash 801289251, now seen corresponding path program 1 times [2023-11-21 22:20:13,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:13,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775181283] [2023-11-21 22:20:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:13,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:13,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:13,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:13,263 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:13,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:13,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775181283] [2023-11-21 22:20:13,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775181283] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:13,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834532788] [2023-11-21 22:20:13,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:13,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:13,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:13,265 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:13,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:20:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:13,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:20:13,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:13,592 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:13,593 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:13,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834532788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:13,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:20:13,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-21 22:20:13,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633587690] [2023-11-21 22:20:13,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:13,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:13,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:13,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:13,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:13,595 INFO L87 Difference]: Start difference. First operand 180 states and 211 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-11-21 22:20:13,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:13,676 INFO L93 Difference]: Finished difference Result 180 states and 211 transitions. [2023-11-21 22:20:13,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:13,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 50 [2023-11-21 22:20:13,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:13,678 INFO L225 Difference]: With dead ends: 180 [2023-11-21 22:20:13,679 INFO L226 Difference]: Without dead ends: 179 [2023-11-21 22:20:13,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:13,680 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 2 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:13,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 434 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:13,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-21 22:20:13,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-11-21 22:20:13,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 131 states have (on average 1.4198473282442747) internal successors, (186), 163 states have internal predecessors, (186), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:13,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 210 transitions. [2023-11-21 22:20:13,691 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 210 transitions. Word has length 50 [2023-11-21 22:20:13,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:13,692 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 210 transitions. [2023-11-21 22:20:13,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-11-21 22:20:13,692 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 210 transitions. [2023-11-21 22:20:13,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-21 22:20:13,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:13,693 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:13,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:13,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:13,915 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:13,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:13,915 INFO L85 PathProgramCache]: Analyzing trace with hash -929836846, now seen corresponding path program 1 times [2023-11-21 22:20:13,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:13,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888283182] [2023-11-21 22:20:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:13,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:14,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:14,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:14,159 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:14,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:14,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888283182] [2023-11-21 22:20:14,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888283182] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:14,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728024460] [2023-11-21 22:20:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:14,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:14,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:14,165 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:14,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 22:20:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:14,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:20:14,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:14,501 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:14,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:20:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:14,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728024460] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:20:14,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:20:14,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-21 22:20:14,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337411862] [2023-11-21 22:20:14,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:20:14,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:20:14,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:14,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:20:14,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:14,532 INFO L87 Difference]: Start difference. First operand 179 states and 210 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 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) [2023-11-21 22:20:14,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:14,627 INFO L93 Difference]: Finished difference Result 189 states and 225 transitions. [2023-11-21 22:20:14,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:14,628 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 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 51 [2023-11-21 22:20:14,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:14,630 INFO L225 Difference]: With dead ends: 189 [2023-11-21 22:20:14,630 INFO L226 Difference]: Without dead ends: 188 [2023-11-21 22:20:14,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:14,631 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:14,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 435 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:14,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-21 22:20:14,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-11-21 22:20:14,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 140 states have (on average 1.4142857142857144) internal successors, (198), 172 states have internal predecessors, (198), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:14,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 222 transitions. [2023-11-21 22:20:14,644 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 222 transitions. Word has length 51 [2023-11-21 22:20:14,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:14,644 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 222 transitions. [2023-11-21 22:20:14,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 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) [2023-11-21 22:20:14,644 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 222 transitions. [2023-11-21 22:20:14,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-21 22:20:14,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:14,645 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:14,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:14,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-21 22:20:14,867 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:14,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:14,867 INFO L85 PathProgramCache]: Analyzing trace with hash -328027930, now seen corresponding path program 1 times [2023-11-21 22:20:14,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:14,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841972463] [2023-11-21 22:20:14,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:14,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:15,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:15,111 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:15,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:15,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841972463] [2023-11-21 22:20:15,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841972463] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:15,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105044153] [2023-11-21 22:20:15,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:15,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:15,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:15,113 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:15,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 22:20:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:15,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:20:15,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:15,474 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:20:15,500 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:15,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105044153] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:20:15,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:20:15,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-21 22:20:15,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892720407] [2023-11-21 22:20:15,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:20:15,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:20:15,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:15,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:20:15,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:15,502 INFO L87 Difference]: Start difference. First operand 188 states and 222 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:15,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:15,617 INFO L93 Difference]: Finished difference Result 352 states and 422 transitions. [2023-11-21 22:20:15,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:15,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2023-11-21 22:20:15,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:15,619 INFO L225 Difference]: With dead ends: 352 [2023-11-21 22:20:15,620 INFO L226 Difference]: Without dead ends: 206 [2023-11-21 22:20:15,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:15,621 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 4 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:15,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 731 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:15,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-11-21 22:20:15,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2023-11-21 22:20:15,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 158 states have (on average 1.3670886075949367) internal successors, (216), 190 states have internal predecessors, (216), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:15,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 240 transitions. [2023-11-21 22:20:15,633 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 240 transitions. Word has length 52 [2023-11-21 22:20:15,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:15,634 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 240 transitions. [2023-11-21 22:20:15,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 240 transitions. [2023-11-21 22:20:15,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-21 22:20:15,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:15,635 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:15,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:15,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:15,857 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:15,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:15,857 INFO L85 PathProgramCache]: Analyzing trace with hash -265388334, now seen corresponding path program 1 times [2023-11-21 22:20:15,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:15,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15535224] [2023-11-21 22:20:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:15,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:20:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,066 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:16,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:16,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15535224] [2023-11-21 22:20:16,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15535224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:16,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:16,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:16,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503751330] [2023-11-21 22:20:16,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:16,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:16,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:16,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:16,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:16,069 INFO L87 Difference]: Start difference. First operand 206 states and 240 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:16,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:16,143 INFO L93 Difference]: Finished difference Result 211 states and 245 transitions. [2023-11-21 22:20:16,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:16,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2023-11-21 22:20:16,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:16,146 INFO L225 Difference]: With dead ends: 211 [2023-11-21 22:20:16,146 INFO L226 Difference]: Without dead ends: 209 [2023-11-21 22:20:16,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:16,147 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:16,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 291 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:16,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-21 22:20:16,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2023-11-21 22:20:16,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 161 states have (on average 1.360248447204969) internal successors, (219), 193 states have internal predecessors, (219), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:16,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 243 transitions. [2023-11-21 22:20:16,160 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 243 transitions. Word has length 55 [2023-11-21 22:20:16,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:16,161 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 243 transitions. [2023-11-21 22:20:16,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:16,161 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 243 transitions. [2023-11-21 22:20:16,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-21 22:20:16,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:16,162 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:16,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:20:16,163 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:16,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1027936968, now seen corresponding path program 1 times [2023-11-21 22:20:16,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:16,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172453061] [2023-11-21 22:20:16,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:16,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:16,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:16,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172453061] [2023-11-21 22:20:16,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172453061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:16,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:16,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:20:16,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22001200] [2023-11-21 22:20:16,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:16,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:16,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:16,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:16,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:16,365 INFO L87 Difference]: Start difference. First operand 209 states and 243 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2023-11-21 22:20:16,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:16,442 INFO L93 Difference]: Finished difference Result 324 states and 377 transitions. [2023-11-21 22:20:16,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:20:16,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 56 [2023-11-21 22:20:16,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:16,444 INFO L225 Difference]: With dead ends: 324 [2023-11-21 22:20:16,444 INFO L226 Difference]: Without dead ends: 222 [2023-11-21 22:20:16,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:16,445 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 12 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:16,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 441 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:16,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-11-21 22:20:16,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 211. [2023-11-21 22:20:16,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 163 states have (on average 1.3558282208588956) internal successors, (221), 195 states have internal predecessors, (221), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:16,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 245 transitions. [2023-11-21 22:20:16,459 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 245 transitions. Word has length 56 [2023-11-21 22:20:16,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:16,459 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 245 transitions. [2023-11-21 22:20:16,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2023-11-21 22:20:16,460 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 245 transitions. [2023-11-21 22:20:16,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-21 22:20:16,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:16,461 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:16,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:20:16,461 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:16,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:16,462 INFO L85 PathProgramCache]: Analyzing trace with hash 851376463, now seen corresponding path program 1 times [2023-11-21 22:20:16,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:16,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162052599] [2023-11-21 22:20:16,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:16,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:20:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:16,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:16,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162052599] [2023-11-21 22:20:16,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162052599] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:16,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269996105] [2023-11-21 22:20:16,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:16,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:16,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:16,715 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:16,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 22:20:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:17,090 INFO L262 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:20:17,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:17,145 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-21 22:20:17,146 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:17,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269996105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:17,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:20:17,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2023-11-21 22:20:17,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916389019] [2023-11-21 22:20:17,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:17,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:20:17,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:17,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:20:17,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:17,148 INFO L87 Difference]: Start difference. First operand 211 states and 245 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:20:17,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:17,297 INFO L93 Difference]: Finished difference Result 342 states and 406 transitions. [2023-11-21 22:20:17,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:20:17,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 58 [2023-11-21 22:20:17,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:17,300 INFO L225 Difference]: With dead ends: 342 [2023-11-21 22:20:17,300 INFO L226 Difference]: Without dead ends: 329 [2023-11-21 22:20:17,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:17,301 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 112 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:17,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 745 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:17,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-11-21 22:20:17,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 235. [2023-11-21 22:20:17,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 184 states have (on average 1.326086956521739) internal successors, (244), 216 states have internal predecessors, (244), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:20:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 274 transitions. [2023-11-21 22:20:17,318 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 274 transitions. Word has length 58 [2023-11-21 22:20:17,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:17,319 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 274 transitions. [2023-11-21 22:20:17,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 22:20:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 274 transitions. [2023-11-21 22:20:17,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-21 22:20:17,320 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:17,320 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:17,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:17,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-21 22:20:17,541 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:17,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:17,542 INFO L85 PathProgramCache]: Analyzing trace with hash -132187023, now seen corresponding path program 1 times [2023-11-21 22:20:17,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:17,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139931819] [2023-11-21 22:20:17,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:17,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:17,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:17,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:17,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:20:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:17,944 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-11-21 22:20:17,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:17,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139931819] [2023-11-21 22:20:17,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139931819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:17,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:17,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:20:17,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594006338] [2023-11-21 22:20:17,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:17,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:17,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:17,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:17,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:17,947 INFO L87 Difference]: Start difference. First operand 235 states and 274 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:18,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:18,024 INFO L93 Difference]: Finished difference Result 333 states and 386 transitions. [2023-11-21 22:20:18,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:18,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2023-11-21 22:20:18,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:18,026 INFO L225 Difference]: With dead ends: 333 [2023-11-21 22:20:18,026 INFO L226 Difference]: Without dead ends: 238 [2023-11-21 22:20:18,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:18,027 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 155 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:18,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 290 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:18,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-21 22:20:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 237. [2023-11-21 22:20:18,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 186 states have (on average 1.3225806451612903) internal successors, (246), 218 states have internal predecessors, (246), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:20:18,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 276 transitions. [2023-11-21 22:20:18,046 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 276 transitions. Word has length 59 [2023-11-21 22:20:18,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:18,046 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 276 transitions. [2023-11-21 22:20:18,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:18,047 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 276 transitions. [2023-11-21 22:20:18,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-21 22:20:18,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:18,048 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:18,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:20:18,048 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:18,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:18,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1728708492, now seen corresponding path program 1 times [2023-11-21 22:20:18,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:18,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866982889] [2023-11-21 22:20:18,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:18,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:20:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,245 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-11-21 22:20:18,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:18,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866982889] [2023-11-21 22:20:18,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866982889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:18,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:18,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:20:18,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885831413] [2023-11-21 22:20:18,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:18,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:18,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:18,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:18,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:18,248 INFO L87 Difference]: Start difference. First operand 237 states and 276 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:18,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:18,379 INFO L93 Difference]: Finished difference Result 323 states and 371 transitions. [2023-11-21 22:20:18,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:20:18,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 60 [2023-11-21 22:20:18,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:18,382 INFO L225 Difference]: With dead ends: 323 [2023-11-21 22:20:18,382 INFO L226 Difference]: Without dead ends: 237 [2023-11-21 22:20:18,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:18,383 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:18,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 401 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:18,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-21 22:20:18,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2023-11-21 22:20:18,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 186 states have (on average 1.3172043010752688) internal successors, (245), 218 states have internal predecessors, (245), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:20:18,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 275 transitions. [2023-11-21 22:20:18,425 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 275 transitions. Word has length 60 [2023-11-21 22:20:18,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:18,425 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 275 transitions. [2023-11-21 22:20:18,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:18,426 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 275 transitions. [2023-11-21 22:20:18,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-21 22:20:18,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:18,432 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:18,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:20:18,433 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:18,433 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:18,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1728673764, now seen corresponding path program 1 times [2023-11-21 22:20:18,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:18,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823738173] [2023-11-21 22:20:18,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:18,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:20:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-11-21 22:20:18,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:18,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823738173] [2023-11-21 22:20:18,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823738173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:18,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:18,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:18,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937147916] [2023-11-21 22:20:18,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:18,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:18,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:18,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:18,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:18,623 INFO L87 Difference]: Start difference. First operand 237 states and 275 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:18,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:18,693 INFO L93 Difference]: Finished difference Result 246 states and 287 transitions. [2023-11-21 22:20:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:18,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 60 [2023-11-21 22:20:18,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:18,696 INFO L225 Difference]: With dead ends: 246 [2023-11-21 22:20:18,696 INFO L226 Difference]: Without dead ends: 244 [2023-11-21 22:20:18,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:18,697 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 4 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:18,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 289 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:18,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-21 22:20:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 241. [2023-11-21 22:20:18,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 190 states have (on average 1.3210526315789475) internal successors, (251), 222 states have internal predecessors, (251), 15 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-21 22:20:18,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 281 transitions. [2023-11-21 22:20:18,716 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 281 transitions. Word has length 60 [2023-11-21 22:20:18,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:18,716 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 281 transitions. [2023-11-21 22:20:18,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:18,716 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 281 transitions. [2023-11-21 22:20:18,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-21 22:20:18,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:18,718 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:18,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:20:18,718 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:18,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:18,719 INFO L85 PathProgramCache]: Analyzing trace with hash 299364256, now seen corresponding path program 2 times [2023-11-21 22:20:18,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:18,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237300092] [2023-11-21 22:20:18,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:18,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-21 22:20:18,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:18,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237300092] [2023-11-21 22:20:18,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237300092] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:18,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614450430] [2023-11-21 22:20:18,969 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:20:18,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:18,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:18,970 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:19,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-21 22:20:19,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:20:19,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:20:19,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:20:19,383 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-21 22:20:19,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:20:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-21 22:20:19,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614450430] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:20:19,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:20:19,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2023-11-21 22:20:19,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283888702] [2023-11-21 22:20:19,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:20:19,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:19,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:19,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:19,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:19,459 INFO L87 Difference]: Start difference. First operand 241 states and 281 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:20:19,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:19,559 INFO L93 Difference]: Finished difference Result 241 states and 281 transitions. [2023-11-21 22:20:19,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:19,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2023-11-21 22:20:19,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:19,563 INFO L225 Difference]: With dead ends: 241 [2023-11-21 22:20:19,563 INFO L226 Difference]: Without dead ends: 223 [2023-11-21 22:20:19,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:19,565 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 2 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:19,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 429 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:19,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-21 22:20:19,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 211. [2023-11-21 22:20:19,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 162 states have (on average 1.3333333333333333) internal successors, (216), 193 states have internal predecessors, (216), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-21 22:20:19,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 244 transitions. [2023-11-21 22:20:19,586 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 244 transitions. Word has length 60 [2023-11-21 22:20:19,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:19,586 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 244 transitions. [2023-11-21 22:20:19,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:20:19,587 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 244 transitions. [2023-11-21 22:20:19,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-21 22:20:19,588 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:19,588 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:19,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:19,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-21 22:20:19,802 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:19,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:19,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1983182103, now seen corresponding path program 1 times [2023-11-21 22:20:19,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:19,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829508788] [2023-11-21 22:20:19,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:19,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:20,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:20,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:20,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:20:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:20,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:20:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-11-21 22:20:20,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:20,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829508788] [2023-11-21 22:20:20,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829508788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:20,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:20,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:20:20,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451210878] [2023-11-21 22:20:20,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:20,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:20,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:20,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:20,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:20,293 INFO L87 Difference]: Start difference. First operand 211 states and 244 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 22:20:20,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:20,538 INFO L93 Difference]: Finished difference Result 212 states and 245 transitions. [2023-11-21 22:20:20,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:20,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 65 [2023-11-21 22:20:20,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:20,541 INFO L225 Difference]: With dead ends: 212 [2023-11-21 22:20:20,541 INFO L226 Difference]: Without dead ends: 210 [2023-11-21 22:20:20,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:20,542 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 29 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:20,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 285 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:20:20,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-21 22:20:20,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2023-11-21 22:20:20,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 162 states have (on average 1.3209876543209877) internal successors, (214), 191 states have internal predecessors, (214), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-21 22:20:20,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 242 transitions. [2023-11-21 22:20:20,563 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 242 transitions. Word has length 65 [2023-11-21 22:20:20,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:20,563 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 242 transitions. [2023-11-21 22:20:20,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 22:20:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 242 transitions. [2023-11-21 22:20:20,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-21 22:20:20,564 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:20,565 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:20,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-21 22:20:20,565 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:20,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:20,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1402404523, now seen corresponding path program 1 times [2023-11-21 22:20:20,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:20,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907700571] [2023-11-21 22:20:20,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:20,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:20:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:20,845 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-11-21 22:20:20,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:20,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907700571] [2023-11-21 22:20:20,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907700571] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:20,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625771231] [2023-11-21 22:20:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:20,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:20,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:20,847 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:20,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-21 22:20:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:21,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:20:21,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:21,326 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-11-21 22:20:21,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:21,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625771231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:21,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:20:21,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-21 22:20:21,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313758842] [2023-11-21 22:20:21,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:21,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:21,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:21,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:21,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:21,329 INFO L87 Difference]: Start difference. First operand 209 states and 242 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:21,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:21,412 INFO L93 Difference]: Finished difference Result 213 states and 247 transitions. [2023-11-21 22:20:21,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:21,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 64 [2023-11-21 22:20:21,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:21,414 INFO L225 Difference]: With dead ends: 213 [2023-11-21 22:20:21,415 INFO L226 Difference]: Without dead ends: 212 [2023-11-21 22:20:21,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:21,415 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 8 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:21,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 420 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:21,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2023-11-21 22:20:21,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 208. [2023-11-21 22:20:21,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 162 states have (on average 1.3148148148148149) internal successors, (213), 190 states have internal predecessors, (213), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-21 22:20:21,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 241 transitions. [2023-11-21 22:20:21,431 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 241 transitions. Word has length 64 [2023-11-21 22:20:21,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:21,431 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 241 transitions. [2023-11-21 22:20:21,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:21,431 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 241 transitions. [2023-11-21 22:20:21,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-21 22:20:21,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:21,432 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:21,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:21,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-21 22:20:21,654 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:21,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:21,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1349102796, now seen corresponding path program 1 times [2023-11-21 22:20:21,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:21,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245012853] [2023-11-21 22:20:21,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:21,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:22,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:20:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:22,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:20:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:20:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-21 22:20:22,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:22,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245012853] [2023-11-21 22:20:22,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245012853] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:22,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470665832] [2023-11-21 22:20:22,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:22,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:22,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:22,293 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:22,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-21 22:20:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:22,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:20:22,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:22,838 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-21 22:20:22,838 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:22,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470665832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:22,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:20:22,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2023-11-21 22:20:22,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366114126] [2023-11-21 22:20:22,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:22,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:20:22,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:22,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:20:22,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:20:22,841 INFO L87 Difference]: Start difference. First operand 208 states and 241 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 22:20:23,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:23,008 INFO L93 Difference]: Finished difference Result 313 states and 364 transitions. [2023-11-21 22:20:23,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:20:23,009 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 66 [2023-11-21 22:20:23,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:23,011 INFO L225 Difference]: With dead ends: 313 [2023-11-21 22:20:23,011 INFO L226 Difference]: Without dead ends: 201 [2023-11-21 22:20:23,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:20:23,013 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 129 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:23,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 396 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:23,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2023-11-21 22:20:23,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2023-11-21 22:20:23,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 157 states have (on average 1.3184713375796178) internal successors, (207), 185 states have internal predecessors, (207), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:23,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 231 transitions. [2023-11-21 22:20:23,028 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 231 transitions. Word has length 66 [2023-11-21 22:20:23,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:23,028 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 231 transitions. [2023-11-21 22:20:23,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 22:20:23,028 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 231 transitions. [2023-11-21 22:20:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-21 22:20:23,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:23,031 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:23,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:23,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-21 22:20:23,244 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:23,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:23,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1604287496, now seen corresponding path program 2 times [2023-11-21 22:20:23,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:23,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535946878] [2023-11-21 22:20:23,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:23,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:23,563 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-21 22:20:23,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:23,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535946878] [2023-11-21 22:20:23,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535946878] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:23,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731661495] [2023-11-21 22:20:23,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:20:23,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:23,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:23,565 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:23,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-21 22:20:24,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:20:24,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:20:24,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:20:24,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:24,230 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-21 22:20:24,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:20:24,331 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-21 22:20:24,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731661495] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:20:24,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:20:24,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-21 22:20:24,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778785404] [2023-11-21 22:20:24,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:20:24,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 22:20:24,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:24,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 22:20:24,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:20:24,336 INFO L87 Difference]: Start difference. First operand 201 states and 231 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:24,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:24,781 INFO L93 Difference]: Finished difference Result 386 states and 456 transitions. [2023-11-21 22:20:24,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-21 22:20:24,781 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-11-21 22:20:24,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:24,783 INFO L225 Difference]: With dead ends: 386 [2023-11-21 22:20:24,783 INFO L226 Difference]: Without dead ends: 236 [2023-11-21 22:20:24,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-21 22:20:24,785 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 10 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:24,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 683 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:20:24,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2023-11-21 22:20:24,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2023-11-21 22:20:24,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 193 states have (on average 1.2538860103626943) internal successors, (242), 220 states have internal predecessors, (242), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:24,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 266 transitions. [2023-11-21 22:20:24,804 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 266 transitions. Word has length 70 [2023-11-21 22:20:24,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:24,804 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 266 transitions. [2023-11-21 22:20:24,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:24,805 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 266 transitions. [2023-11-21 22:20:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-21 22:20:24,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:24,806 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:24,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:25,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-21 22:20:25,029 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:25,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:25,029 INFO L85 PathProgramCache]: Analyzing trace with hash -682903536, now seen corresponding path program 1 times [2023-11-21 22:20:25,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:25,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196149377] [2023-11-21 22:20:25,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:25,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:25,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:25,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:25,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-21 22:20:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:25,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-21 22:20:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:25,340 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-21 22:20:25,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:25,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196149377] [2023-11-21 22:20:25,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196149377] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:25,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399536151] [2023-11-21 22:20:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:25,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:25,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:25,342 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:25,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-21 22:20:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:25,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:20:25,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:25,969 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-21 22:20:25,970 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:25,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399536151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:25,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:20:25,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-21 22:20:25,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927109266] [2023-11-21 22:20:25,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:25,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:25,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:25,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:25,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:25,973 INFO L87 Difference]: Start difference. First operand 236 states and 266 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:26,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:26,055 INFO L93 Difference]: Finished difference Result 236 states and 266 transitions. [2023-11-21 22:20:26,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:26,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 92 [2023-11-21 22:20:26,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:26,057 INFO L225 Difference]: With dead ends: 236 [2023-11-21 22:20:26,057 INFO L226 Difference]: Without dead ends: 235 [2023-11-21 22:20:26,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:26,058 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 2 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:26,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 415 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:26,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-11-21 22:20:26,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2023-11-21 22:20:26,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 193 states have (on average 1.2487046632124352) internal successors, (241), 219 states have internal predecessors, (241), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:26,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 265 transitions. [2023-11-21 22:20:26,085 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 265 transitions. Word has length 92 [2023-11-21 22:20:26,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:26,085 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 265 transitions. [2023-11-21 22:20:26,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:26,086 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 265 transitions. [2023-11-21 22:20:26,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:20:26,087 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:26,087 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:26,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:26,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-21 22:20:26,310 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:26,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:26,310 INFO L85 PathProgramCache]: Analyzing trace with hash 304827310, now seen corresponding path program 1 times [2023-11-21 22:20:26,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:26,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121981470] [2023-11-21 22:20:26,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:26,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:20:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:26,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-21 22:20:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:26,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-21 22:20:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-21 22:20:26,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:26,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121981470] [2023-11-21 22:20:26,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121981470] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:20:26,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938273594] [2023-11-21 22:20:26,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:26,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:20:26,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:26,671 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:20:26,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-21 22:20:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:27,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:20:27,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-21 22:20:27,288 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:20:27,314 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-11-21 22:20:27,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938273594] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:20:27,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:20:27,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-21 22:20:27,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167267607] [2023-11-21 22:20:27,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:20:27,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:20:27,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:27,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:20:27,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:27,316 INFO L87 Difference]: Start difference. First operand 235 states and 265 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:27,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:27,405 INFO L93 Difference]: Finished difference Result 245 states and 277 transitions. [2023-11-21 22:20:27,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:27,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 93 [2023-11-21 22:20:27,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:27,408 INFO L225 Difference]: With dead ends: 245 [2023-11-21 22:20:27,408 INFO L226 Difference]: Without dead ends: 244 [2023-11-21 22:20:27,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:27,409 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:27,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 416 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:20:27,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-21 22:20:27,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244. [2023-11-21 22:20:27,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 202 states have (on average 1.2376237623762376) internal successors, (250), 228 states have internal predecessors, (250), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 274 transitions. [2023-11-21 22:20:27,428 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 274 transitions. Word has length 93 [2023-11-21 22:20:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:27,428 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 274 transitions. [2023-11-21 22:20:27,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:20:27,429 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 274 transitions. [2023-11-21 22:20:27,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-21 22:20:27,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:27,430 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:27,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-21 22:20:27,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-21 22:20:27,657 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:27,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:27,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1709391627, now seen corresponding path program 1 times [2023-11-21 22:20:27,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:27,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971806681] [2023-11-21 22:20:27,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:27,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:28,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:20:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:20:28,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:20:28,422 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:20:28,423 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 42 remaining) [2023-11-21 22:20:28,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 42 remaining) [2023-11-21 22:20:28,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 42 remaining) [2023-11-21 22:20:28,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 42 remaining) [2023-11-21 22:20:28,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 42 remaining) [2023-11-21 22:20:28,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 42 remaining) [2023-11-21 22:20:28,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 42 remaining) [2023-11-21 22:20:28,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 42 remaining) [2023-11-21 22:20:28,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 42 remaining) [2023-11-21 22:20:28,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 42 remaining) [2023-11-21 22:20:28,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 42 remaining) [2023-11-21 22:20:28,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 42 remaining) [2023-11-21 22:20:28,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 42 remaining) [2023-11-21 22:20:28,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 42 remaining) [2023-11-21 22:20:28,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 42 remaining) [2023-11-21 22:20:28,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 42 remaining) [2023-11-21 22:20:28,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 42 remaining) [2023-11-21 22:20:28,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 42 remaining) [2023-11-21 22:20:28,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 42 remaining) [2023-11-21 22:20:28,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 42 remaining) [2023-11-21 22:20:28,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 42 remaining) [2023-11-21 22:20:28,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 42 remaining) [2023-11-21 22:20:28,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 42 remaining) [2023-11-21 22:20:28,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 42 remaining) [2023-11-21 22:20:28,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 42 remaining) [2023-11-21 22:20:28,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 42 remaining) [2023-11-21 22:20:28,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 42 remaining) [2023-11-21 22:20:28,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 42 remaining) [2023-11-21 22:20:28,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 42 remaining) [2023-11-21 22:20:28,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 42 remaining) [2023-11-21 22:20:28,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 42 remaining) [2023-11-21 22:20:28,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 42 remaining) [2023-11-21 22:20:28,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 42 remaining) [2023-11-21 22:20:28,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 42 remaining) [2023-11-21 22:20:28,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 42 remaining) [2023-11-21 22:20:28,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 42 remaining) [2023-11-21 22:20:28,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 42 remaining) [2023-11-21 22:20:28,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 42 remaining) [2023-11-21 22:20:28,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 42 remaining) [2023-11-21 22:20:28,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 42 remaining) [2023-11-21 22:20:28,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 42 remaining) [2023-11-21 22:20:28,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 42 remaining) [2023-11-21 22:20:28,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-21 22:20:28,436 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:28,440 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:20:28,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-21 22:20:28,554 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-21 22:20:28,556 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-21 22:20:28,557 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem118 could not be translated [2023-11-21 22:20:28,557 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem118 could not be translated [2023-11-21 22:20:28,559 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-21 22:20:28,560 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem161 [2023-11-21 22:20:28,562 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem161 [2023-11-21 22:20:28,562 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~strcpy~res162 [2023-11-21 22:20:28,563 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem82 [2023-11-21 22:20:28,563 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~mem82 [2023-11-21 22:20:28,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:20:28 BoogieIcfgContainer [2023-11-21 22:20:28,594 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:20:28,595 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:20:28,595 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:20:28,595 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:20:28,596 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:06" (3/4) ... [2023-11-21 22:20:28,598 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:20:28,599 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:20:28,600 INFO L158 Benchmark]: Toolchain (without parser) took 26064.61ms. Allocated memory was 153.1MB in the beginning and 396.4MB in the end (delta: 243.3MB). Free memory was 110.8MB in the beginning and 274.0MB in the end (delta: -163.2MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2023-11-21 22:20:28,601 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:20:28,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2069.11ms. Allocated memory is still 153.1MB. Free memory was 110.8MB in the beginning and 62.4MB in the end (delta: 48.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-21 22:20:28,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 146.91ms. Allocated memory is still 153.1MB. Free memory was 62.4MB in the beginning and 56.5MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:20:28,602 INFO L158 Benchmark]: Boogie Preprocessor took 87.33ms. Allocated memory is still 153.1MB. Free memory was 56.5MB in the beginning and 50.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 22:20:28,604 INFO L158 Benchmark]: RCFGBuilder took 1467.78ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 50.2MB in the beginning and 138.8MB in the end (delta: -88.6MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-11-21 22:20:28,605 INFO L158 Benchmark]: TraceAbstraction took 22277.68ms. Allocated memory was 186.6MB in the beginning and 396.4MB in the end (delta: 209.7MB). Free memory was 137.7MB in the beginning and 274.0MB in the end (delta: -136.3MB). Peak memory consumption was 227.6MB. Max. memory is 16.1GB. [2023-11-21 22:20:28,605 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 396.4MB. Free memory is still 274.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:20:28,615 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2069.11ms. Allocated memory is still 153.1MB. Free memory was 110.8MB in the beginning and 62.4MB in the end (delta: 48.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 146.91ms. Allocated memory is still 153.1MB. Free memory was 62.4MB in the beginning and 56.5MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.33ms. Allocated memory is still 153.1MB. Free memory was 56.5MB in the beginning and 50.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1467.78ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 50.2MB in the beginning and 138.8MB in the end (delta: -88.6MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * TraceAbstraction took 22277.68ms. Allocated memory was 186.6MB in the beginning and 396.4MB in the end (delta: 209.7MB). Free memory was 137.7MB in the beginning and 274.0MB in the end (delta: -136.3MB). Peak memory consumption was 227.6MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 396.4MB. Free memory is still 274.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem118 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem118 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem161 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem161 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~strcpy~res162 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem82 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~mem82 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 2290]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of strlen at line 2274. Possible FailurePath: [L2229] static const char *applet_name; [L2230] static signed int bb_errno_location; [L2231] static signed int * const bb_errno = &bb_errno_location; [L2232] static struct __jmp_buf_tag die_jmp[1l]; [L2233] static signed int die_sleep; [L2234] static signed char logmode = (signed char)1; [L2235] static const char *msg_eol = "\n"; [L2236] static unsigned char xfunc_error_retval = (unsigned char)1; [L2426] static struct utmp dummy_utmp; [L2511] char *a = malloc(11); [L2512] a[10] = 0 [L2513] int i=0; VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=0, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND TRUE i<10 [L2514] a[i]=__VERIFIER_nondet_char() [L2513] ++i VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=1, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND TRUE i<10 [L2514] a[i]=__VERIFIER_nondet_char() [L2513] ++i VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=2, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND TRUE i<10 [L2514] a[i]=__VERIFIER_nondet_char() [L2513] ++i VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=3, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND TRUE i<10 [L2514] a[i]=__VERIFIER_nondet_char() [L2513] ++i VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=4, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND TRUE i<10 [L2514] a[i]=__VERIFIER_nondet_char() [L2513] ++i VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=5, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND TRUE i<10 [L2514] a[i]=__VERIFIER_nondet_char() [L2513] ++i VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=6, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND TRUE i<10 [L2514] a[i]=__VERIFIER_nondet_char() [L2513] ++i VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=7, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND TRUE i<10 [L2514] a[i]=__VERIFIER_nondet_char() [L2513] ++i VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=8, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND TRUE i<10 [L2514] a[i]=__VERIFIER_nondet_char() [L2513] ++i VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=9, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND TRUE i<10 [L2514] a[i]=__VERIFIER_nondet_char() [L2513] ++i VAL [a={-2:0}, applet_name={0:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=10, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L2513] COND FALSE !(i<10) [L2515] applet_name = a [L2516] bb_errno_location = __VERIFIER_nondet_int() [L2517] optind = 1 [L2518] int argc = __VERIFIER_nondet_int(); [L2519] CALL assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [\old(cond)=1, applet_name={-2:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L9] COND FALSE !(!cond) [L2519] RET assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [a={-2:0}, applet_name={-2:0}, argc=1, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L2520] EXPR argc+1 [L2520] char **argv=malloc((argc+1)*sizeof(char*)); [L2521] EXPR argc+1 [L2521] char **mem_track=malloc((argc+1)*sizeof(char*)); [L2522] argv[argc]=0 [L2523] int i=0; VAL [a={-2:0}, applet_name={-2:0}, argc=1, argv={-13:0}, bb_errno={7:0}, bb_errno_location={7:0}, die_jmp={8:0}, die_sleep=0, dummy_utmp={9:0}, i=0, logmode=1, mem_track={-14:0}, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L2523] COND TRUE i main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1adc753a2af9d9a8eb85b88c58b048195e83a61458ae5864af76d1e73e91ec74 [2023-11-21 22:20:31,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:20:31,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:20:31,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:20:31,782 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:20:31,783 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:20:31,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/busybox-1.22.0/logname-2.i [2023-11-21 22:20:34,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:20:35,370 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:20:35,371 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/sv-benchmarks/c/busybox-1.22.0/logname-2.i [2023-11-21 22:20:35,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/data/1dee2574d/0dc2810c0f804dc79c226ee7ed25480c/FLAG18f5b13de [2023-11-21 22:20:35,436 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/data/1dee2574d/0dc2810c0f804dc79c226ee7ed25480c [2023-11-21 22:20:35,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:20:35,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:20:35,448 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:35,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:20:35,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:20:35,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:35" (1/1) ... [2023-11-21 22:20:35,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aaf83e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:35, skipping insertion in model container [2023-11-21 22:20:35,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:35" (1/1) ... [2023-11-21 22:20:35,523 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:20:36,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:36,941 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:20:36,969 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:20:37,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:37,159 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:20:37,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:37,631 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:37,632 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:37,632 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:37,639 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:20:37,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37 WrapperNode [2023-11-21 22:20:37,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:37,641 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:37,641 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:20:37,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:20:37,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,762 INFO L138 Inliner]: procedures = 608, calls = 155, calls flagged for inlining = 16, calls inlined = 14, statements flattened = 510 [2023-11-21 22:20:37,762 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:37,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:20:37,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:20:37,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:20:37,775 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,789 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,804 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-21 22:20:37,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,881 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,894 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:20:37,895 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:20:37,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:20:37,895 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:20:37,896 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (1/1) ... [2023-11-21 22:20:37,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:37,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:37,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:37,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:20:37,981 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-21 22:20:37,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:20:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:20:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-21 22:20:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:20:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-21 22:20:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:20:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:20:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-21 22:20:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-21 22:20:37,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-21 22:20:37,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-21 22:20:37,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:20:37,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:20:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 22:20:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-21 22:20:37,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-21 22:20:37,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:20:37,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:20:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:20:37,990 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:20:37,990 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:20:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:20:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:20:37,991 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2023-11-21 22:20:37,991 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2023-11-21 22:20:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-21 22:20:37,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:20:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-21 22:20:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-21 22:20:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 22:20:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-21 22:20:37,993 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-21 22:20:38,491 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:20:38,494 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:20:41,777 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:41,962 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:41,962 INFO L308 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-21 22:20:41,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:41 BoogieIcfgContainer [2023-11-21 22:20:41,964 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:41,966 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:20:41,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:20:41,970 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:20:41,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:20:35" (1/3) ... [2023-11-21 22:20:41,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f64b8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:41, skipping insertion in model container [2023-11-21 22:20:41,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:37" (2/3) ... [2023-11-21 22:20:41,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f64b8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:41, skipping insertion in model container [2023-11-21 22:20:41,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:41" (3/3) ... [2023-11-21 22:20:41,973 INFO L112 eAbstractionObserver]: Analyzing ICFG logname-2.i [2023-11-21 22:20:41,994 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:20:41,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-11-21 22:20:42,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:20:42,087 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;@5cadf1f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:20:42,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-21 22:20:42,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 95 states have (on average 1.7263157894736842) internal successors, (164), 137 states have internal predecessors, (164), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:42,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:20:42,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:42,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:20:42,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:42,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:42,107 INFO L85 PathProgramCache]: Analyzing trace with hash 458526, now seen corresponding path program 1 times [2023-11-21 22:20:42,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:20:42,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55984207] [2023-11-21 22:20:42,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:42,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:42,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:20:42,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:20:42,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-21 22:20:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:42,386 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 22:20:42,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:42,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:42,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:42,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:20:42,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55984207] [2023-11-21 22:20:42,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55984207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:42,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:42,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:20:42,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481039135] [2023-11-21 22:20:42,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:42,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:20:42,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:20:42,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:20:42,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:20:42,451 INFO L87 Difference]: Start difference. First operand has 153 states, 95 states have (on average 1.7263157894736842) internal successors, (164), 137 states have internal predecessors, (164), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:42,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:42,716 INFO L93 Difference]: Finished difference Result 243 states and 304 transitions. [2023-11-21 22:20:42,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:20:42,721 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-21 22:20:42,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:42,735 INFO L225 Difference]: With dead ends: 243 [2023-11-21 22:20:42,735 INFO L226 Difference]: Without dead ends: 135 [2023-11-21 22:20:42,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:20:42,744 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:42,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-21 22:20:42,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-21 22:20:42,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2023-11-21 22:20:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 92 states have (on average 1.5108695652173914) internal successors, (139), 119 states have internal predecessors, (139), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:42,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 163 transitions. [2023-11-21 22:20:42,833 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 163 transitions. Word has length 3 [2023-11-21 22:20:42,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:42,833 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 163 transitions. [2023-11-21 22:20:42,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:42,834 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 163 transitions. [2023-11-21 22:20:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:20:42,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:42,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:20:42,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:43,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:43,042 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:43,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:43,043 INFO L85 PathProgramCache]: Analyzing trace with hash 14214375, now seen corresponding path program 1 times [2023-11-21 22:20:43,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:20:43,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093850781] [2023-11-21 22:20:43,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:43,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:43,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:20:43,046 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:20:43,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-21 22:20:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:43,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:20:43,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:43,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:43,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:43,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:20:43,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093850781] [2023-11-21 22:20:43,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093850781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:43,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:43,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:20:43,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809453400] [2023-11-21 22:20:43,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:43,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:43,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:20:43,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:43,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:43,312 INFO L87 Difference]: Start difference. First operand 135 states and 163 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:43,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:43,635 INFO L93 Difference]: Finished difference Result 269 states and 325 transitions. [2023-11-21 22:20:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:43,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-21 22:20:43,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:43,639 INFO L225 Difference]: With dead ends: 269 [2023-11-21 22:20:43,639 INFO L226 Difference]: Without dead ends: 138 [2023-11-21 22:20:43,641 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 [2023-11-21 22:20:43,642 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:43,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 283 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:20:43,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-21 22:20:43,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-11-21 22:20:43,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 95 states have (on average 1.4947368421052631) internal successors, (142), 122 states have internal predecessors, (142), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 166 transitions. [2023-11-21 22:20:43,657 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 166 transitions. Word has length 4 [2023-11-21 22:20:43,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:43,658 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 166 transitions. [2023-11-21 22:20:43,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:43,658 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 166 transitions. [2023-11-21 22:20:43,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:20:43,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:43,659 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-21 22:20:43,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-21 22:20:43,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:43,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:43,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:43,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1741253029, now seen corresponding path program 1 times [2023-11-21 22:20:43,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:20:43,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080496041] [2023-11-21 22:20:43,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:43,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:43,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:20:43,868 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:20:43,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-21 22:20:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:44,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:20:44,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:44,185 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:20:44,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:44,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:20:44,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080496041] [2023-11-21 22:20:44,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080496041] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:20:44,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:20:44,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2023-11-21 22:20:44,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936939115] [2023-11-21 22:20:44,264 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:20:44,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:20:44,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:20:44,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:20:44,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:20:44,265 INFO L87 Difference]: Start difference. First operand 138 states and 166 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:44,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:44,768 INFO L93 Difference]: Finished difference Result 272 states and 330 transitions. [2023-11-21 22:20:44,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:44,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 [2023-11-21 22:20:44,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:44,773 INFO L225 Difference]: With dead ends: 272 [2023-11-21 22:20:44,773 INFO L226 Difference]: Without dead ends: 141 [2023-11-21 22:20:44,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:20:44,775 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:44,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:20:44,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-11-21 22:20:44,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 138. [2023-11-21 22:20:44,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 96 states have (on average 1.4791666666666667) internal successors, (142), 122 states have internal predecessors, (142), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:44,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 166 transitions. [2023-11-21 22:20:44,794 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 166 transitions. Word has length 7 [2023-11-21 22:20:44,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:44,795 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 166 transitions. [2023-11-21 22:20:44,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:44,795 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 166 transitions. [2023-11-21 22:20:44,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 22:20:44,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:44,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:44,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:45,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:45,004 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:45,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:45,005 INFO L85 PathProgramCache]: Analyzing trace with hash 642476191, now seen corresponding path program 1 times [2023-11-21 22:20:45,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:20:45,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178598346] [2023-11-21 22:20:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:45,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:45,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:20:45,008 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:20:45,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-21 22:20:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:45,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:20:45,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:45,348 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:20:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:45,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:20:45,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178598346] [2023-11-21 22:20:45,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178598346] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:20:45,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:20:45,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-21 22:20:45,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762986275] [2023-11-21 22:20:45,470 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:20:45,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:20:45,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:20:45,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:20:45,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:20:45,472 INFO L87 Difference]: Start difference. First operand 138 states and 166 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:20:46,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:46,131 INFO L93 Difference]: Finished difference Result 280 states and 339 transitions. [2023-11-21 22:20:46,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:20:46,133 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2023-11-21 22:20:46,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:46,134 INFO L225 Difference]: With dead ends: 280 [2023-11-21 22:20:46,135 INFO L226 Difference]: Without dead ends: 150 [2023-11-21 22:20:46,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:20:46,138 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 10 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:46,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 564 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 22:20:46,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-21 22:20:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2023-11-21 22:20:46,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 108 states have (on average 1.4259259259259258) internal successors, (154), 134 states have internal predecessors, (154), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:46,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 178 transitions. [2023-11-21 22:20:46,155 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 178 transitions. Word has length 13 [2023-11-21 22:20:46,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:46,155 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 178 transitions. [2023-11-21 22:20:46,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 22:20:46,156 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 178 transitions. [2023-11-21 22:20:46,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-21 22:20:46,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:46,157 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:46,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:46,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:46,364 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:46,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:46,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1422806625, now seen corresponding path program 2 times [2023-11-21 22:20:46,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:20:46,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412408914] [2023-11-21 22:20:46,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:20:46,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:46,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:20:46,367 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:20:46,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-21 22:20:46,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 22:20:46,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:20:46,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:20:46,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:20:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-21 22:20:46,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:20:46,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:20:46,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412408914] [2023-11-21 22:20:46,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412408914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:46,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:46,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:20:46,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6839101] [2023-11-21 22:20:46,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:46,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:20:46,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:20:46,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:20:46,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:46,709 INFO L87 Difference]: Start difference. First operand 150 states and 178 transitions. Second operand has 4 states, 2 states have (on average 4.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:47,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:20:47,261 INFO L93 Difference]: Finished difference Result 150 states and 178 transitions. [2023-11-21 22:20:47,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:20:47,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 2 states have (on average 4.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-11-21 22:20:47,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:20:47,265 INFO L225 Difference]: With dead ends: 150 [2023-11-21 22:20:47,265 INFO L226 Difference]: Without dead ends: 148 [2023-11-21 22:20:47,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:20:47,266 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 123 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:20:47,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 274 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:20:47,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-21 22:20:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-21 22:20:47,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 108 states have (on average 1.4074074074074074) internal successors, (152), 132 states have internal predecessors, (152), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-21 22:20:47,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 176 transitions. [2023-11-21 22:20:47,282 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 176 transitions. Word has length 25 [2023-11-21 22:20:47,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:20:47,284 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 176 transitions. [2023-11-21 22:20:47,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 2 states have (on average 4.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:20:47,284 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 176 transitions. [2023-11-21 22:20:47,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-21 22:20:47,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:20:47,286 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:47,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:20:47,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:47,493 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2023-11-21 22:20:47,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:47,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1503223115, now seen corresponding path program 1 times [2023-11-21 22:20:47,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:20:47,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [784712016] [2023-11-21 22:20:47,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:47,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:20:47,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:20:47,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:20:47,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8b71ac2-0bf2-44da-8ef2-abfc10b710ef/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process