./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/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_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:56,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:56,519 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:24:56,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:56,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:56,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:56,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:56,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:56,554 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:24:56,555 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:24:56,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:24:56,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:24:56,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:56,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:56,558 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:56,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:56,559 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:24:56,560 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:24:56,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:24:56,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:24:56,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:56,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:24:56,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:24:56,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:24:56,564 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:24:56,564 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:24:56,564 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:24:56,565 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:24:56,565 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:56,566 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:56,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:56,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:24:56,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:24:56,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:56,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:56,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:24:56,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:24:56,569 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:24:56,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:24:56,569 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:24:56,570 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:24:56,570 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:24:56,570 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:24:56,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:24:56,571 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_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2023-11-21 22:24:56,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:56,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:56,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:56,913 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:56,914 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:56,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2023-11-21 22:25:00,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:00,616 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:00,618 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2023-11-21 22:25:00,658 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/data/9f29cc0d5/0603295ffd30485fa300212205be4296/FLAGc3ed8e9dc [2023-11-21 22:25:00,678 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/data/9f29cc0d5/0603295ffd30485fa300212205be4296 [2023-11-21 22:25:00,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:00,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:00,688 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:00,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:00,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:00,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:00" (1/1) ... [2023-11-21 22:25:00,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d9c470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:00, skipping insertion in model container [2023-11-21 22:25:00,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:00" (1/1) ... [2023-11-21 22:25:00,775 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:02,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:02,540 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:02,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:03,126 WARN L675 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:03,134 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:03,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03 WrapperNode [2023-11-21 22:25:03,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:03,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:03,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:03,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:03,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,351 INFO L138 Inliner]: procedures = 474, calls = 840, calls flagged for inlining = 55, calls inlined = 39, statements flattened = 1111 [2023-11-21 22:25:03,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:03,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:03,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:03,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:03,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,388 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,494 INFO L187 HeapSplitter]: Split 195 memory accesses to 26 slices as follows [5, 3, 2, 2, 20, 0, 0, 0, 3, 11, 5, 5, 0, 0, 5, 2, 20, 16, 4, 12, 2, 3, 18, 34, 5, 18] [2023-11-21 22:25:03,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:03,666 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:03,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:03,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:03,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (1/1) ... [2023-11-21 22:25:03,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:03,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:03,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:03,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-21 22:25:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-21 22:25:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:25:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-21 22:25:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 22:25:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 22:25:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:25:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-21 22:25:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-21 22:25:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:25:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-21 22:25:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-21 22:25:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-21 22:25:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-21 22:25:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-21 22:25:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-21 22:25:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-21 22:25:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-21 22:25:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-21 22:25:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-21 22:25:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-21 22:25:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-21 22:25:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-21 22:25:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-21 22:25:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-21 22:25:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-21 22:25:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-21 22:25:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-21 22:25:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2023-11-21 22:25:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2023-11-21 22:25:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2023-11-21 22:25:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2023-11-21 22:25:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2023-11-21 22:25:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2023-11-21 22:25:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2023-11-21 22:25:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2023-11-21 22:25:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#23 [2023-11-21 22:25:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#24 [2023-11-21 22:25:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#25 [2023-11-21 22:25:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:25:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:25:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:25:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:25:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 22:25:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 22:25:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 22:25:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 22:25:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-21 22:25:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-21 22:25:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-21 22:25:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-21 22:25:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-21 22:25:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-21 22:25:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-21 22:25:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-21 22:25:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-21 22:25:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-21 22:25:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-21 22:25:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-21 22:25:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-21 22:25:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-11-21 22:25:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-11-21 22:25:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-11-21 22:25:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2023-11-21 22:25:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2023-11-21 22:25:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:25:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-21 22:25:03,783 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-21 22:25:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 22:25:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 22:25:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 22:25:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 22:25:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 22:25:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 22:25:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 22:25:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 22:25:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-21 22:25:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-21 22:25:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-21 22:25:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-21 22:25:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-21 22:25:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-21 22:25:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-21 22:25:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-21 22:25:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-21 22:25:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-21 22:25:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-21 22:25:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-21 22:25:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2023-11-21 22:25:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2023-11-21 22:25:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2023-11-21 22:25:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2023-11-21 22:25:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2023-11-21 22:25:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2023-11-21 22:25:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:25:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:25:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-21 22:25:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-21 22:25:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-21 22:25:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-21 22:25:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-21 22:25:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-21 22:25:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-21 22:25:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-21 22:25:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-21 22:25:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-21 22:25:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-21 22:25:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-21 22:25:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-21 22:25:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-21 22:25:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-21 22:25:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-21 22:25:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-21 22:25:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-21 22:25:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-21 22:25:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-21 22:25:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-21 22:25:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-21 22:25:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-21 22:25:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2023-11-21 22:25:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2023-11-21 22:25:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2023-11-21 22:25:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2023-11-21 22:25:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2023-11-21 22:25:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2023-11-21 22:25:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2023-11-21 22:25:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#22 [2023-11-21 22:25:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#23 [2023-11-21 22:25:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#24 [2023-11-21 22:25:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#25 [2023-11-21 22:25:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:25:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:25:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-21 22:25:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-21 22:25:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:25:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 22:25:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 22:25:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 22:25:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 22:25:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 22:25:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 22:25:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 22:25:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 22:25:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-21 22:25:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-21 22:25:03,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-21 22:25:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-21 22:25:03,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-21 22:25:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-21 22:25:03,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-21 22:25:03,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-21 22:25:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-21 22:25:03,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-21 22:25:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-21 22:25:03,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-21 22:25:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2023-11-21 22:25:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2023-11-21 22:25:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2023-11-21 22:25:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2023-11-21 22:25:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2023-11-21 22:25:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2023-11-21 22:25:03,818 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-21 22:25:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-21 22:25:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-21 22:25:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-21 22:25:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-11-21 22:25:03,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-11-21 22:25:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 22:25:03,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 22:25:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 22:25:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 22:25:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 22:25:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 22:25:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 22:25:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 22:25:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-21 22:25:03,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-21 22:25:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-21 22:25:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-21 22:25:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-21 22:25:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-21 22:25:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-21 22:25:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-21 22:25:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-21 22:25:03,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-21 22:25:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-21 22:25:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-21 22:25:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2023-11-21 22:25:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2023-11-21 22:25:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2023-11-21 22:25:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2023-11-21 22:25:03,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2023-11-21 22:25:03,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2023-11-21 22:25:03,823 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:25:03,823 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:25:03,823 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-21 22:25:03,823 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-21 22:25:03,823 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-21 22:25:03,823 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-21 22:25:03,823 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-21 22:25:03,824 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-21 22:25:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-21 22:25:03,824 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-21 22:25:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-21 22:25:03,824 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-21 22:25:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:25:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:25:03,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:25:03,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:25:03,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 22:25:03,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 22:25:03,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 22:25:03,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 22:25:03,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-21 22:25:03,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-21 22:25:03,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-21 22:25:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-21 22:25:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-21 22:25:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-21 22:25:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-21 22:25:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-21 22:25:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-21 22:25:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-21 22:25:03,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-21 22:25:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-21 22:25:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-21 22:25:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-11-21 22:25:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-11-21 22:25:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-11-21 22:25:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2023-11-21 22:25:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2023-11-21 22:25:03,827 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-21 22:25:03,828 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-21 22:25:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-21 22:25:03,828 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-21 22:25:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-11-21 22:25:03,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-11-21 22:25:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-21 22:25:03,828 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-21 22:25:03,828 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 22:25:03,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 22:25:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:25:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:25:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:25:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:25:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:25:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 22:25:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 22:25:03,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 22:25:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 22:25:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 22:25:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 22:25:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 22:25:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-21 22:25:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-21 22:25:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-21 22:25:03,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-21 22:25:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-21 22:25:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-21 22:25:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-21 22:25:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-21 22:25:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-21 22:25:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-11-21 22:25:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-11-21 22:25:03,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-11-21 22:25:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2023-11-21 22:25:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2023-11-21 22:25:04,403 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:04,406 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:05,897 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:06,466 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:06,470 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 22:25:06,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:06 BoogieIcfgContainer [2023-11-21 22:25:06,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:06,476 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:06,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:06,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:06,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:00" (1/3) ... [2023-11-21 22:25:06,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72da6fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:06, skipping insertion in model container [2023-11-21 22:25:06,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:03" (2/3) ... [2023-11-21 22:25:06,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72da6fa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:06, skipping insertion in model container [2023-11-21 22:25:06,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:06" (3/3) ... [2023-11-21 22:25:06,487 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2023-11-21 22:25:06,508 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:06,508 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2023-11-21 22:25:06,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:06,595 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;@67875f11, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:06,596 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-21 22:25:06,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 313 states, 187 states have (on average 1.4224598930481283) internal successors, (266), 214 states have internal predecessors, (266), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-21 22:25:06,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 22:25:06,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:06,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:06,614 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-21 22:25:06,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:06,623 INFO L85 PathProgramCache]: Analyzing trace with hash 674005458, now seen corresponding path program 1 times [2023-11-21 22:25:06,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:06,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954712620] [2023-11-21 22:25:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:06,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:08,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:08,379 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 22:25:08,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:08,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954712620] [2023-11-21 22:25:08,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954712620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:08,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:08,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:08,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169468663] [2023-11-21 22:25:08,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:08,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:08,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:08,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:08,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:08,446 INFO L87 Difference]: Start difference. First operand has 313 states, 187 states have (on average 1.4224598930481283) internal successors, (266), 214 states have internal predecessors, (266), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 22:25:11,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:11,338 INFO L93 Difference]: Finished difference Result 633 states and 855 transitions. [2023-11-21 22:25:11,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:25:11,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 7 [2023-11-21 22:25:11,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:11,371 INFO L225 Difference]: With dead ends: 633 [2023-11-21 22:25:11,379 INFO L226 Difference]: Without dead ends: 320 [2023-11-21 22:25:11,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:25:11,397 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 80 mSDsluCounter, 708 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:11,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1028 Invalid, 572 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [78 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-21 22:25:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-21 22:25:11,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 309. [2023-11-21 22:25:11,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 188 states have (on average 1.398936170212766) internal successors, (263), 213 states have internal predecessors, (263), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-21 22:25:11,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 414 transitions. [2023-11-21 22:25:11,519 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 414 transitions. Word has length 7 [2023-11-21 22:25:11,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:11,520 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 414 transitions. [2023-11-21 22:25:11,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 22:25:11,520 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 414 transitions. [2023-11-21 22:25:11,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 22:25:11,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:11,522 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:11,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:25:11,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-21 22:25:11,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:11,523 INFO L85 PathProgramCache]: Analyzing trace with hash 324976125, now seen corresponding path program 1 times [2023-11-21 22:25:11,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:11,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351486032] [2023-11-21 22:25:11,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:11,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:12,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:12,669 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 22:25:12,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:12,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351486032] [2023-11-21 22:25:12,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351486032] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:25:12,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381587495] [2023-11-21 22:25:12,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:12,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:25:12,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:12,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:25:12,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:25:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:13,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:25:13,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:13,305 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 22:25:13,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:25:13,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381587495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:13,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:25:13,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2023-11-21 22:25:13,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580179658] [2023-11-21 22:25:13,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:13,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:25:13,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:13,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:25:13,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:25:13,310 INFO L87 Difference]: Start difference. First operand 309 states and 414 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 22:25:13,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:13,780 INFO L93 Difference]: Finished difference Result 313 states and 418 transitions. [2023-11-21 22:25:13,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:25:13,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 10 [2023-11-21 22:25:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:13,785 INFO L225 Difference]: With dead ends: 313 [2023-11-21 22:25:13,785 INFO L226 Difference]: Without dead ends: 312 [2023-11-21 22:25:13,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:25:13,787 INFO L413 NwaCegarLoop]: 351 mSDtfsCounter, 12 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:13,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1405 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-21 22:25:13,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-21 22:25:13,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 308. [2023-11-21 22:25:13,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 188 states have (on average 1.3936170212765957) internal successors, (262), 212 states have internal predecessors, (262), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-21 22:25:13,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 413 transitions. [2023-11-21 22:25:13,845 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 413 transitions. Word has length 10 [2023-11-21 22:25:13,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:13,845 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 413 transitions. [2023-11-21 22:25:13,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 22:25:13,846 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 413 transitions. [2023-11-21 22:25:13,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 22:25:13,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:13,847 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:13,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:14,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-21 22:25:14,064 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-21 22:25:14,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:14,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1484325751, now seen corresponding path program 1 times [2023-11-21 22:25:14,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:14,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970629727] [2023-11-21 22:25:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:14,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:15,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:15,104 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 22:25:15,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:15,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970629727] [2023-11-21 22:25:15,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970629727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:15,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:15,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:25:15,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260771555] [2023-11-21 22:25:15,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:15,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:25:15,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:15,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:25:15,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:25:15,108 INFO L87 Difference]: Start difference. First operand 308 states and 413 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 22:25:17,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:17,353 INFO L93 Difference]: Finished difference Result 315 states and 422 transitions. [2023-11-21 22:25:17,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:25:17,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 11 [2023-11-21 22:25:17,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:17,357 INFO L225 Difference]: With dead ends: 315 [2023-11-21 22:25:17,357 INFO L226 Difference]: Without dead ends: 314 [2023-11-21 22:25:17,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:25:17,359 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 73 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:17,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 733 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-21 22:25:17,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-21 22:25:17,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 305. [2023-11-21 22:25:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 186 states have (on average 1.39247311827957) internal successors, (259), 209 states have internal predecessors, (259), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-21 22:25:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 410 transitions. [2023-11-21 22:25:17,417 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 410 transitions. Word has length 11 [2023-11-21 22:25:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:17,417 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 410 transitions. [2023-11-21 22:25:17,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 22:25:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 410 transitions. [2023-11-21 22:25:17,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 22:25:17,419 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:17,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:17,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:25:17,419 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-21 22:25:17,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:17,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1484382404, now seen corresponding path program 1 times [2023-11-21 22:25:17,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:17,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671343758] [2023-11-21 22:25:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:17,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:18,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:18,553 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 22:25:18,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:18,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671343758] [2023-11-21 22:25:18,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671343758] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:25:18,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445614132] [2023-11-21 22:25:18,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:18,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:25:18,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:18,558 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:25:18,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:25:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:19,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:25:19,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:19,130 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 22:25:19,130 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:25:19,197 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 22:25:19,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445614132] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:25:19,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:25:19,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2023-11-21 22:25:19,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277911980] [2023-11-21 22:25:19,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:25:19,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-21 22:25:19,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:19,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-21 22:25:19,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:25:19,202 INFO L87 Difference]: Start difference. First operand 305 states and 410 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:25:21,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:21,761 INFO L93 Difference]: Finished difference Result 620 states and 832 transitions. [2023-11-21 22:25:21,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:25:21,762 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-21 22:25:21,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:21,764 INFO L225 Difference]: With dead ends: 620 [2023-11-21 22:25:21,765 INFO L226 Difference]: Without dead ends: 322 [2023-11-21 22:25:21,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:25:21,767 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 96 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:21,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1549 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-21 22:25:21,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-11-21 22:25:21,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 311. [2023-11-21 22:25:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 192 states have (on average 1.3802083333333333) internal successors, (265), 215 states have internal predecessors, (265), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-21 22:25:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 416 transitions. [2023-11-21 22:25:21,816 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 416 transitions. Word has length 11 [2023-11-21 22:25:21,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:21,817 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 416 transitions. [2023-11-21 22:25:21,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:25:21,817 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 416 transitions. [2023-11-21 22:25:21,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 22:25:21,818 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:21,818 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:21,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:22,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:25:22,034 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-21 22:25:22,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:22,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1550900452, now seen corresponding path program 2 times [2023-11-21 22:25:22,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:22,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774634057] [2023-11-21 22:25:22,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:22,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:23,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:23,146 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 22:25:23,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:23,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774634057] [2023-11-21 22:25:23,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774634057] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:23,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:23,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:23,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251073232] [2023-11-21 22:25:23,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:23,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:23,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:23,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:23,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:23,148 INFO L87 Difference]: Start difference. First operand 311 states and 416 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 22:25:25,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:25,554 INFO L93 Difference]: Finished difference Result 322 states and 429 transitions. [2023-11-21 22:25:25,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:25:25,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 17 [2023-11-21 22:25:25,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:25,557 INFO L225 Difference]: With dead ends: 322 [2023-11-21 22:25:25,557 INFO L226 Difference]: Without dead ends: 320 [2023-11-21 22:25:25,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:25:25,559 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 78 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:25,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 1004 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-21 22:25:25,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2023-11-21 22:25:25,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 313. [2023-11-21 22:25:25,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 194 states have (on average 1.3762886597938144) internal successors, (267), 217 states have internal predecessors, (267), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-21 22:25:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 418 transitions. [2023-11-21 22:25:25,607 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 418 transitions. Word has length 17 [2023-11-21 22:25:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:25,608 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 418 transitions. [2023-11-21 22:25:25,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 22:25:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 418 transitions. [2023-11-21 22:25:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 22:25:25,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:25,609 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:25,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:25:25,610 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-21 22:25:25,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:25,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1912665516, now seen corresponding path program 1 times [2023-11-21 22:25:25,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:25,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606027543] [2023-11-21 22:25:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:25,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:26,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 22:25:26,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:26,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606027543] [2023-11-21 22:25:26,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606027543] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:25:26,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143891682] [2023-11-21 22:25:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:26,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:25:26,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:26,555 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:25:26,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:25:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:27,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:25:27,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:25:27,334 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:25:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:25:27,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143891682] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:25:27,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:25:27,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 20 [2023-11-21 22:25:27,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583689118] [2023-11-21 22:25:27,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:25:27,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-21 22:25:27,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:27,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-21 22:25:27,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:25:27,501 INFO L87 Difference]: Start difference. First operand 313 states and 418 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 19 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:25:30,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:30,667 INFO L93 Difference]: Finished difference Result 628 states and 842 transitions. [2023-11-21 22:25:30,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-21 22:25:30,669 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 19 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-21 22:25:30,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:30,672 INFO L225 Difference]: With dead ends: 628 [2023-11-21 22:25:30,672 INFO L226 Difference]: Without dead ends: 328 [2023-11-21 22:25:30,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2023-11-21 22:25:30,675 INFO L413 NwaCegarLoop]: 308 mSDtfsCounter, 113 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:30,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 2878 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1435 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-21 22:25:30,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-11-21 22:25:30,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 321. [2023-11-21 22:25:30,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 204 states have (on average 1.3431372549019607) internal successors, (274), 225 states have internal predecessors, (274), 76 states have call successors, (76), 26 states have call predecessors, (76), 26 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-11-21 22:25:30,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 425 transitions. [2023-11-21 22:25:30,722 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 425 transitions. Word has length 20 [2023-11-21 22:25:30,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:30,722 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 425 transitions. [2023-11-21 22:25:30,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 19 states have internal predecessors, (38), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:25:30,723 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 425 transitions. [2023-11-21 22:25:30,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-21 22:25:30,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:30,725 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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 22:25:30,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:30,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3bcecc1-01e5-4607-85ef-ae4e9cc02260/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:25:30,942 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-21 22:25:30,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:30,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1091211829, now seen corresponding path program 1 times [2023-11-21 22:25:30,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:30,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61563019] [2023-11-21 22:25:30,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:30,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:31,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:25:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:31,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 22:25:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-21 22:25:32,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:32,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61563019] [2023-11-21 22:25:32,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61563019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:32,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:32,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:25:32,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319252672] [2023-11-21 22:25:32,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:32,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:25:32,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:32,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:25:32,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:25:32,009 INFO L87 Difference]: Start difference. First operand 321 states and 425 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:25:35,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:35,565 INFO L93 Difference]: Finished difference Result 564 states and 753 transitions. [2023-11-21 22:25:35,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:25:35,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2023-11-21 22:25:35,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:35,570 INFO L225 Difference]: With dead ends: 564 [2023-11-21 22:25:35,570 INFO L226 Difference]: Without dead ends: 560 [2023-11-21 22:25:35,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:35,571 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 436 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:35,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 694 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-21 22:25:35,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-11-21 22:25:35,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 540. [2023-11-21 22:25:35,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 343 states have (on average 1.3498542274052479) internal successors, (463), 368 states have internal predecessors, (463), 134 states have call successors, (134), 48 states have call predecessors, (134), 48 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-21 22:25:35,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 730 transitions. [2023-11-21 22:25:35,672 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 730 transitions. Word has length 43 [2023-11-21 22:25:35,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:35,673 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 730 transitions. [2023-11-21 22:25:35,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-21 22:25:35,674 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 730 transitions. [2023-11-21 22:25:35,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-21 22:25:35,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:35,675 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 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 22:25:35,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:25:35,676 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-21 22:25:35,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:35,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1956922699, now seen corresponding path program 1 times [2023-11-21 22:25:35,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:35,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394123730] [2023-11-21 22:25:35,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:35,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:36,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:36,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:36,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:25:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:36,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:25:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:36,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:36,576 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-21 22:25:36,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:36,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394123730] [2023-11-21 22:25:36,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394123730] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:36,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:36,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:36,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122697457] [2023-11-21 22:25:36,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:36,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:25:36,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:36,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:25:36,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:25:36,580 INFO L87 Difference]: Start difference. First operand 540 states and 730 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 22:25:39,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:39,367 INFO L93 Difference]: Finished difference Result 1064 states and 1469 transitions. [2023-11-21 22:25:39,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:25:39,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2023-11-21 22:25:39,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:39,374 INFO L225 Difference]: With dead ends: 1064 [2023-11-21 22:25:39,374 INFO L226 Difference]: Without dead ends: 554 [2023-11-21 22:25:39,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:39,377 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 73 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:39,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 733 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-21 22:25:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-11-21 22:25:39,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 540. [2023-11-21 22:25:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 343 states have (on average 1.3440233236151604) internal successors, (461), 368 states have internal predecessors, (461), 134 states have call successors, (134), 48 states have call predecessors, (134), 48 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-21 22:25:39,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 728 transitions. [2023-11-21 22:25:39,472 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 728 transitions. Word has length 48 [2023-11-21 22:25:39,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:39,473 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 728 transitions. [2023-11-21 22:25:39,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 22:25:39,473 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 728 transitions. [2023-11-21 22:25:39,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-21 22:25:39,476 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:39,477 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 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 22:25:39,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:25:39,477 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-21 22:25:39,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:39,478 INFO L85 PathProgramCache]: Analyzing trace with hash -134423695, now seen corresponding path program 1 times [2023-11-21 22:25:39,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:39,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686014889] [2023-11-21 22:25:39,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:39,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:25:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:40,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:25:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:40,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:40,514 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-21 22:25:40,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:40,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686014889] [2023-11-21 22:25:40,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686014889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:40,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:40,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:25:40,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470158801] [2023-11-21 22:25:40,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:40,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:25:40,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:40,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:25:40,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:25:40,517 INFO L87 Difference]: Start difference. First operand 540 states and 728 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 22:25:43,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:43,232 INFO L93 Difference]: Finished difference Result 1055 states and 1428 transitions. [2023-11-21 22:25:43,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:25:43,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2023-11-21 22:25:43,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:43,237 INFO L225 Difference]: With dead ends: 1055 [2023-11-21 22:25:43,238 INFO L226 Difference]: Without dead ends: 553 [2023-11-21 22:25:43,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:43,241 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 394 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:43,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 447 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-21 22:25:43,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-11-21 22:25:43,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 539. [2023-11-21 22:25:43,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 343 states have (on average 1.338192419825073) internal successors, (459), 367 states have internal predecessors, (459), 134 states have call successors, (134), 48 states have call predecessors, (134), 48 states have return successors, (133), 133 states have call predecessors, (133), 133 states have call successors, (133) [2023-11-21 22:25:43,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 726 transitions. [2023-11-21 22:25:43,335 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 726 transitions. Word has length 50 [2023-11-21 22:25:43,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:43,338 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 726 transitions. [2023-11-21 22:25:43,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 22:25:43,338 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 726 transitions. [2023-11-21 22:25:43,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-21 22:25:43,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:43,344 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:43,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:25:43,344 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [cdev_addErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, cdev_addErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, zf_readwErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-21 22:25:43,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:43,345 INFO L85 PathProgramCache]: Analyzing trace with hash -219907125, now seen corresponding path program 1 times [2023-11-21 22:25:43,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:43,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205364096] [2023-11-21 22:25:43,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:43,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:44,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:44,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:25:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:44,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-21 22:25:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:44,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:44,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:25:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:44,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:25:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:44,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-21 22:25:44,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:44,640 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-11-21 22:25:44,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:44,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205364096] [2023-11-21 22:25:44,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205364096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:44,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:44,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:44,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421228916] [2023-11-21 22:25:44,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:44,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:44,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:44,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:44,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:44,644 INFO L87 Difference]: Start difference. First operand 539 states and 726 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)