/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:53:33,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:53:33,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:53:33,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:53:33,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:53:33,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:53:33,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:53:33,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:53:33,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:53:33,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:53:33,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:53:33,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 20:53:33,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:53:33,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:53:33,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:53:33,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:53:33,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:53:33,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:53:33,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:53:33,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:53:33,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:53:33,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:53:33,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:53:33,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:53:33,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 20:53:33,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 20:53:33,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 20:53:33,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 20:53:33,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 20:53:33,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 20:53:33,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 20:53:33,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 20:53:33,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 20:53:33,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 20:53:33,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 20:53:33,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 20:53:33,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 20:53:33,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 20:53:33,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:53:33,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:53:33,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:53:33,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 20:53:33,549 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:53:33,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:53:33,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:53:33,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:53:33,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:53:33,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:53:33,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:53:33,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:53:33,559 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:53:33,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:53:33,561 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:53:33,561 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:53:33,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:53:33,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:53:33,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:53:33,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:53:33,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:53:33,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:53:33,564 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:53:33,564 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:53:33,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:53:33,565 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:53:33,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:53:33,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:53:33,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:53:33,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:53:33,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:53:33,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:53:33,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:53:33,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:53:33,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:53:33,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:53:33,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:53:33,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:53:34,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:53:34,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:53:34,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:53:34,096 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:53:34,096 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:53:34,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i [2022-10-15 20:53:34,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9400d6ec1/1b14ed4d9dee4e2788ca913beabb1f01/FLAG0a6cd3ee7 [2022-10-15 20:53:35,350 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:53:35,351 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i [2022-10-15 20:53:35,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9400d6ec1/1b14ed4d9dee4e2788ca913beabb1f01/FLAG0a6cd3ee7 [2022-10-15 20:53:35,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9400d6ec1/1b14ed4d9dee4e2788ca913beabb1f01 [2022-10-15 20:53:35,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:53:35,713 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:53:35,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:53:35,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:53:35,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:53:35,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:53:35" (1/1) ... [2022-10-15 20:53:35,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c14ba10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:35, skipping insertion in model container [2022-10-15 20:53:35,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:53:35" (1/1) ... [2022-10-15 20:53:35,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:53:35,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:53:40,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i[282309,282322] [2022-10-15 20:53:40,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:53:40,186 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:53:40,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i[282309,282322] [2022-10-15 20:53:40,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:53:41,038 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:53:41,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41 WrapperNode [2022-10-15 20:53:41,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:53:41,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:53:41,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:53:41,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:53:41,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,371 INFO L138 Inliner]: procedures = 347, calls = 1404, calls flagged for inlining = 224, calls inlined = 207, statements flattened = 3968 [2022-10-15 20:53:41,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:53:41,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:53:41,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:53:41,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:53:41,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,699 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:53:41,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:53:41,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:53:41,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:53:41,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (1/1) ... [2022-10-15 20:53:41,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:53:41,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:53:41,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 20:53:41,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 20:53:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-10-15 20:53:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-10-15 20:53:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 20:53:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 20:53:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 20:53:41,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 20:53:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-15 20:53:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-15 20:53:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-10-15 20:53:41,903 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-10-15 20:53:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_read_bd [2022-10-15 20:53:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_read_bd [2022-10-15 20:53:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-15 20:53:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-15 20:53:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 20:53:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 20:53:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-10-15 20:53:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_mdio_poll [2022-10-15 20:53:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_mdio_poll [2022-10-15 20:53:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-10-15 20:53:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-10-15 20:53:41,955 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-15 20:53:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-15 20:53:41,955 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-15 20:53:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-15 20:53:41,956 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_stop [2022-10-15 20:53:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_stop [2022-10-15 20:53:41,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:53:41,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_15 [2022-10-15 20:53:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_15 [2022-10-15 20:53:41,956 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_ack_irq [2022-10-15 20:53:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_ack_irq [2022-10-15 20:53:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-15 20:53:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-15 20:53:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 20:53:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-15 20:53:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-15 20:53:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-15 20:53:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-15 20:53:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-15 20:53:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-15 20:53:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-10-15 20:53:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-10-15 20:53:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:53:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_get_regs_len [2022-10-15 20:53:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_get_regs_len [2022-10-15 20:53:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_read [2022-10-15 20:53:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_read [2022-10-15 20:53:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-10-15 20:53:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-10-15 20:53:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 20:53:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_disable_rx_and_tx [2022-10-15 20:53:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_disable_rx_and_tx [2022-10-15 20:53:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_do_set_mac_address [2022-10-15 20:53:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_do_set_mac_address [2022-10-15 20:53:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_enable_rx_and_tx [2022-10-15 20:53:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_enable_rx_and_tx [2022-10-15 20:53:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_init_ring [2022-10-15 20:53:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_init_ring [2022-10-15 20:53:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_nocache [2022-10-15 20:53:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_nocache [2022-10-15 20:53:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-15 20:53:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-15 20:53:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-15 20:53:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-15 20:53:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-15 20:53:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-15 20:53:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure __rounddown_pow_of_two [2022-10-15 20:53:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __rounddown_pow_of_two [2022-10-15 20:53:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 20:53:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 20:53:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-15 20:53:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-15 20:53:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:53:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-15 20:53:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-15 20:53:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-15 20:53:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-15 20:53:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 20:53:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 20:53:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-10-15 20:53:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-10-15 20:53:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_interrupt [2022-10-15 20:53:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_interrupt [2022-10-15 20:53:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-10-15 20:53:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-10-15 20:53:41,970 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-15 20:53:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-15 20:53:41,971 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 20:53:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 20:53:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:53:41,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 20:53:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 20:53:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_probe [2022-10-15 20:53:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_probe [2022-10-15 20:53:41,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 20:53:41,974 INFO L130 BoogieDeclarations]: Found specification of procedure __devm_request_region [2022-10-15 20:53:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __devm_request_region [2022-10-15 20:53:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_resume [2022-10-15 20:53:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_resume [2022-10-15 20:53:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-10-15 20:53:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-10-15 20:53:41,975 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-15 20:53:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-15 20:53:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-10-15 20:53:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-10-15 20:53:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-10-15 20:53:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-10-15 20:53:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:53:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-10-15 20:53:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-10-15 20:53:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_write_bd [2022-10-15 20:53:41,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_write_bd [2022-10-15 20:53:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-15 20:53:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-15 20:53:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 20:53:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 20:53:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_write [2022-10-15 20:53:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_write [2022-10-15 20:53:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 20:53:41,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 20:53:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-15 20:53:41,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-15 20:53:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-10-15 20:53:41,985 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-10-15 20:53:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_enable_irq [2022-10-15 20:53:41,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_enable_irq [2022-10-15 20:53:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_open [2022-10-15 20:53:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_open [2022-10-15 20:53:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-15 20:53:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-15 20:53:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_disable_irq [2022-10-15 20:53:41,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_disable_irq [2022-10-15 20:53:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-10-15 20:53:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-10-15 20:53:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_remove [2022-10-15 20:53:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_remove [2022-10-15 20:53:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-15 20:53:41,993 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-15 20:53:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:53:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-10-15 20:53:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-10-15 20:53:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-15 20:53:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-15 20:53:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_tx_timeout [2022-10-15 20:53:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_tx_timeout [2022-10-15 20:53:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:53:41,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:53:42,824 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:53:42,829 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:53:43,124 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 20:54:05,303 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-10-15 20:54:05,613 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:54:05,651 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:54:05,651 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-15 20:54:05,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:54:05 BoogieIcfgContainer [2022-10-15 20:54:05,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:54:05,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:54:05,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:54:05,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:54:05,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:53:35" (1/3) ... [2022-10-15 20:54:05,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e2777e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:54:05, skipping insertion in model container [2022-10-15 20:54:05,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:53:41" (2/3) ... [2022-10-15 20:54:05,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e2777e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:54:05, skipping insertion in model container [2022-10-15 20:54:05,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:54:05" (3/3) ... [2022-10-15 20:54:05,670 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i [2022-10-15 20:54:05,703 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:54:05,704 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-15 20:54:05,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:54:05,905 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5f1cf326, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:54:05,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-15 20:54:05,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 1460 states, 1077 states have (on average 1.3249767873723306) internal successors, (1427), 1110 states have internal predecessors, (1427), 299 states have call successors, (299), 65 states have call predecessors, (299), 64 states have return successors, (292), 290 states have call predecessors, (292), 292 states have call successors, (292) [2022-10-15 20:54:05,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-10-15 20:54:05,993 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:54:05,997 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:54:05,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ethoc_read_bdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ethoc_write_bdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ethoc_write_bdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:54:06,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:54:06,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2123259844, now seen corresponding path program 1 times [2022-10-15 20:54:06,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:54:06,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432065079] [2022-10-15 20:54:06,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:54:06,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:54:06,885 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:54:06,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [83150429] [2022-10-15 20:54:06,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:54:06,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:54:06,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:54:06,889 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:54:06,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:54:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:07,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 2623 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:54:07,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:54:08,229 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-10-15 20:54:08,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:54:08,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:54:08,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432065079] [2022-10-15 20:54:08,231 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:54:08,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83150429] [2022-10-15 20:54:08,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83150429] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:54:08,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:54:08,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:54:08,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299088678] [2022-10-15 20:54:08,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:54:08,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:54:08,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:54:08,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:54:08,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:54:08,314 INFO L87 Difference]: Start difference. First operand has 1460 states, 1077 states have (on average 1.3249767873723306) internal successors, (1427), 1110 states have internal predecessors, (1427), 299 states have call successors, (299), 65 states have call predecessors, (299), 64 states have return successors, (292), 290 states have call predecessors, (292), 292 states have call successors, (292) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-15 20:54:09,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:54:09,115 INFO L93 Difference]: Finished difference Result 3999 states and 5658 transitions. [2022-10-15 20:54:09,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:54:09,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 185 [2022-10-15 20:54:09,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:54:09,166 INFO L225 Difference]: With dead ends: 3999 [2022-10-15 20:54:09,166 INFO L226 Difference]: Without dead ends: 2511 [2022-10-15 20:54:09,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:54:09,196 INFO L413 NwaCegarLoop]: 2462 mSDtfsCounter, 1654 mSDsluCounter, 1751 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 4213 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:54:09,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 4213 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:54:09,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2022-10-15 20:54:09,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2498. [2022-10-15 20:54:09,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 1854 states have (on average 1.2691477885652642) internal successors, (2353), 1891 states have internal predecessors, (2353), 511 states have call successors, (511), 120 states have call predecessors, (511), 120 states have return successors, (537), 505 states have call predecessors, (537), 511 states have call successors, (537) [2022-10-15 20:54:09,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3401 transitions. [2022-10-15 20:54:09,528 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3401 transitions. Word has length 185 [2022-10-15 20:54:09,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:54:09,530 INFO L495 AbstractCegarLoop]: Abstraction has 2498 states and 3401 transitions. [2022-10-15 20:54:09,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-15 20:54:09,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3401 transitions. [2022-10-15 20:54:09,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-10-15 20:54:09,548 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:54:09,549 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:54:09,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 20:54:09,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-15 20:54:09,765 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ethoc_write_bdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ethoc_write_bdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:54:09,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:54:09,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1989131977, now seen corresponding path program 1 times [2022-10-15 20:54:09,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:54:09,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265374243] [2022-10-15 20:54:09,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:54:09,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:54:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:10,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 20:54:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:10,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:10,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 20:54:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-15 20:54:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-15 20:54:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 20:54:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-15 20:54:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-15 20:54:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-15 20:54:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-15 20:54:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 20:54:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-15 20:54:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-15 20:54:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 20:54:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-15 20:54:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-15 20:54:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-15 20:54:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-10-15 20:54:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:11,435 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-10-15 20:54:11,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:54:11,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265374243] [2022-10-15 20:54:11,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265374243] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:54:11,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:54:11,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:54:11,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445412003] [2022-10-15 20:54:11,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:54:11,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:54:11,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:54:11,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:54:11,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:54:11,441 INFO L87 Difference]: Start difference. First operand 2498 states and 3401 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-15 20:54:13,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 20:54:15,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 20:54:24,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:54:24,617 INFO L93 Difference]: Finished difference Result 7029 states and 9633 transitions. [2022-10-15 20:54:24,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 20:54:24,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 188 [2022-10-15 20:54:24,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:54:24,675 INFO L225 Difference]: With dead ends: 7029 [2022-10-15 20:54:24,675 INFO L226 Difference]: Without dead ends: 4560 [2022-10-15 20:54:24,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:54:24,697 INFO L413 NwaCegarLoop]: 2109 mSDtfsCounter, 1921 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 697 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2141 SdHoareTripleChecker+Valid, 4178 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:54:24,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2141 Valid, 4178 Invalid, 2080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [697 Valid, 1381 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-10-15 20:54:24,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4560 states. [2022-10-15 20:54:25,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4560 to 4432. [2022-10-15 20:54:25,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4432 states, 3269 states have (on average 1.255429795044356) internal successors, (4104), 3333 states have internal predecessors, (4104), 916 states have call successors, (916), 231 states have call predecessors, (916), 234 states have return successors, (969), 903 states have call predecessors, (969), 916 states have call successors, (969) [2022-10-15 20:54:25,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4432 states to 4432 states and 5989 transitions. [2022-10-15 20:54:25,118 INFO L78 Accepts]: Start accepts. Automaton has 4432 states and 5989 transitions. Word has length 188 [2022-10-15 20:54:25,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:54:25,120 INFO L495 AbstractCegarLoop]: Abstraction has 4432 states and 5989 transitions. [2022-10-15 20:54:25,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-10-15 20:54:25,121 INFO L276 IsEmpty]: Start isEmpty. Operand 4432 states and 5989 transitions. [2022-10-15 20:54:25,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-10-15 20:54:25,139 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:54:25,140 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:54:25,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:54:25,141 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ethoc_read_bdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ethoc_write_bdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ethoc_write_bdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:54:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:54:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1514324393, now seen corresponding path program 1 times [2022-10-15 20:54:25,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:54:25,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141770129] [2022-10-15 20:54:25,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:54:25,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:54:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:25,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:54:25,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141770129] [2022-10-15 20:54:25,629 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-15 20:54:25,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352676692] [2022-10-15 20:54:25,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:54:25,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:54:25,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:54:25,632 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:54:25,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:54:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:54:26,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 2688 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:54:26,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:54:27,044 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2022-10-15 20:54:27,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:54:27,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352676692] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:54:27,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:54:27,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:54:27,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893199764] [2022-10-15 20:54:27,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:54:27,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:54:27,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:54:27,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:54:27,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:54:27,049 INFO L87 Difference]: Start difference. First operand 4432 states and 5989 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)