/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-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:15:39,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:15:39,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:15:39,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:15:39,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:15:39,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:15:39,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:15:39,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:15:39,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:15:39,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:15:39,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:15:39,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:15:39,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:15:39,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:15:39,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:15:39,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:15:39,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:15:39,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:15:39,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:15:39,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:15:39,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:15:39,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:15:39,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:15:39,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:15:39,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:15:39,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:15:39,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:15:39,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:15:39,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:15:39,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:15:39,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:15:39,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:15:39,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:15:39,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:15:39,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:15:39,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:15:39,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:15:39,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:15:39,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:15:39,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:15:39,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:15:39,829 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 [2022-10-16 13:15:39,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:15:39,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:15:39,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:15:39,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:15:39,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:15:39,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:15:39,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:15:39,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:15:39,891 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:15:39,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:15:39,893 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:15:39,893 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:15:39,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:15:39,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:15:39,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:15:39,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:15:39,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:15:39,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:15:39,895 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:15:39,895 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:15:39,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:15:39,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:15:39,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:15:39,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:15:39,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:15:39,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:15:39,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:15:39,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:15:39,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:15:39,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:15:39,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:15:39,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:15:39,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:15:39,898 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:15:40,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:15:40,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:15:40,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:15:40,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:15:40,369 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:15:40,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-10-16 13:15:40,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a3b0f39/c126aff5140b4b5a8f428c0f73620bb2/FLAGbba4e310d [2022-10-16 13:15:41,670 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:15:41,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-10-16 13:15:41,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a3b0f39/c126aff5140b4b5a8f428c0f73620bb2/FLAGbba4e310d [2022-10-16 13:15:41,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a3b0f39/c126aff5140b4b5a8f428c0f73620bb2 [2022-10-16 13:15:41,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:15:41,923 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:15:41,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:15:41,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:15:41,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:15:41,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:15:41" (1/1) ... [2022-10-16 13:15:41,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131cef35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:41, skipping insertion in model container [2022-10-16 13:15:41,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:15:41" (1/1) ... [2022-10-16 13:15:41,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:15:42,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:15:42,841 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-10-16 13:15:42,842 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-10-16 13:15:43,447 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-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-10-16 13:15:45,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:15:45,206 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:15:45,355 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-10-16 13:15:45,356 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-10-16 13:15:45,386 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-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-10-16 13:15:45,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:15:46,058 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:15:46,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46 WrapperNode [2022-10-16 13:15:46,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:15:46,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:15:46,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:15:46,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:15:46,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,473 INFO L138 Inliner]: procedures = 350, calls = 2000, calls flagged for inlining = 171, calls inlined = 139, statements flattened = 4785 [2022-10-16 13:15:46,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:15:46,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:15:46,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:15:46,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:15:46,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,749 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:15:46,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:15:46,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:15:46,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:15:46,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (1/1) ... [2022-10-16 13:15:46,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:15:46,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:15:46,865 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) [2022-10-16 13:15:46,887 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 [2022-10-16 13:15:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 13:15:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-10-16 13:15:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-10-16 13:15:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 13:15:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-10-16 13:15:46,938 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-10-16 13:15:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:15:46,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:15:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-10-16 13:15:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-10-16 13:15:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-10-16 13:15:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-10-16 13:15:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2022-10-16 13:15:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2022-10-16 13:15:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-16 13:15:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-16 13:15:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-10-16 13:15:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-10-16 13:15:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-10-16 13:15:46,940 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-10-16 13:15:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-16 13:15:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-16 13:15:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:15:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:15:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-10-16 13:15:46,941 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-10-16 13:15:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-10-16 13:15:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-10-16 13:15:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-10-16 13:15:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-10-16 13:15:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-10-16 13:15:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-10-16 13:15:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2022-10-16 13:15:46,942 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2022-10-16 13:15:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:15:46,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:15:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-10-16 13:15:46,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-10-16 13:15:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-16 13:15:46,943 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-16 13:15:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-10-16 13:15:46,944 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-10-16 13:15:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-16 13:15:46,944 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-16 13:15:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 13:15:46,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 13:15:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-10-16 13:15:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-10-16 13:15:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:15:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:15:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2022-10-16 13:15:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2022-10-16 13:15:46,946 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-10-16 13:15:46,946 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-10-16 13:15:46,946 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-10-16 13:15:46,946 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-10-16 13:15:46,946 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2022-10-16 13:15:46,947 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2022-10-16 13:15:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 13:15:46,947 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 13:15:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-10-16 13:15:46,947 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-10-16 13:15:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-10-16 13:15:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-10-16 13:15:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-10-16 13:15:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-10-16 13:15:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:15:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-10-16 13:15:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-10-16 13:15:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-10-16 13:15:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-10-16 13:15:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-10-16 13:15:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-10-16 13:15:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-10-16 13:15:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-10-16 13:15:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-10-16 13:15:46,950 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-10-16 13:15:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:15:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-16 13:15:46,950 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-16 13:15:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-16 13:15:46,950 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-16 13:15:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-16 13:15:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-16 13:15:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-10-16 13:15:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-10-16 13:15:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-10-16 13:15:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-10-16 13:15:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-10-16 13:15:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 13:15:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 13:15:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:15:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-10-16 13:15:46,952 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-10-16 13:15:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:15:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2022-10-16 13:15:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2022-10-16 13:15:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-10-16 13:15:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-10-16 13:15:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-10-16 13:15:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-10-16 13:15:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-10-16 13:15:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-10-16 13:15:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-10-16 13:15:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-10-16 13:15:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-10-16 13:15:46,954 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-10-16 13:15:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-16 13:15:46,955 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-16 13:15:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-16 13:15:46,955 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-16 13:15:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-16 13:15:46,955 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-16 13:15:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-10-16 13:15:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-10-16 13:15:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-10-16 13:15:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-10-16 13:15:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 13:15:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:15:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:15:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-10-16 13:15:46,957 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-10-16 13:15:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-10-16 13:15:46,957 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-10-16 13:15:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-10-16 13:15:46,957 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-10-16 13:15:46,957 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-16 13:15:46,958 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-16 13:15:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 13:15:46,958 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-16 13:15:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:15:46,958 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-10-16 13:15:46,958 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-10-16 13:15:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-10-16 13:15:46,959 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-10-16 13:15:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2022-10-16 13:15:46,959 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2022-10-16 13:15:46,959 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-10-16 13:15:46,959 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-10-16 13:15:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-10-16 13:15:46,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-10-16 13:15:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:15:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-16 13:15:46,960 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-16 13:15:46,960 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-16 13:15:46,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-16 13:15:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-10-16 13:15:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-10-16 13:15:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 13:15:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 13:15:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2022-10-16 13:15:46,961 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2022-10-16 13:15:46,961 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-10-16 13:15:46,962 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-10-16 13:15:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-10-16 13:15:46,962 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-10-16 13:15:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 13:15:46,962 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 13:15:46,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-16 13:15:46,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-16 13:15:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-10-16 13:15:46,963 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-10-16 13:15:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:15:46,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 13:15:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-10-16 13:15:46,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-10-16 13:15:46,963 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-10-16 13:15:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-10-16 13:15:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:15:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-10-16 13:15:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-10-16 13:15:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-16 13:15:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-16 13:15:46,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:15:46,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:15:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-10-16 13:15:46,965 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-10-16 13:15:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-10-16 13:15:46,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-10-16 13:15:46,965 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2022-10-16 13:15:46,965 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2022-10-16 13:15:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:15:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-16 13:15:46,966 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-16 13:15:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:15:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-16 13:15:46,966 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-16 13:15:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-10-16 13:15:46,967 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-10-16 13:15:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:15:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-16 13:15:46,967 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-16 13:15:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-10-16 13:15:46,967 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-10-16 13:15:46,967 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-16 13:15:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-16 13:15:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-10-16 13:15:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-10-16 13:15:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-10-16 13:15:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-10-16 13:15:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-10-16 13:15:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-10-16 13:15:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-10-16 13:15:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-10-16 13:15:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-10-16 13:15:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-10-16 13:15:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-10-16 13:15:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-10-16 13:15:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-16 13:15:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-16 13:15:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2022-10-16 13:15:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2022-10-16 13:15:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-10-16 13:15:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-10-16 13:15:46,970 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-16 13:15:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-16 13:15:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:15:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-10-16 13:15:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-10-16 13:15:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-10-16 13:15:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-10-16 13:15:46,971 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-10-16 13:15:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-10-16 13:15:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-10-16 13:15:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-10-16 13:15:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:15:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:15:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-10-16 13:15:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-10-16 13:15:46,972 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-16 13:15:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-16 13:15:46,973 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 13:15:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 13:15:47,856 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:15:47,861 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:15:49,096 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:15:58,954 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:15:58,990 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:15:58,990 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 13:15:58,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:15:58 BoogieIcfgContainer [2022-10-16 13:15:58,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:15:59,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:15:59,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:15:59,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:15:59,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:15:41" (1/3) ... [2022-10-16 13:15:59,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb66340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:15:59, skipping insertion in model container [2022-10-16 13:15:59,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:15:46" (2/3) ... [2022-10-16 13:15:59,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb66340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:15:59, skipping insertion in model container [2022-10-16 13:15:59,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:15:58" (3/3) ... [2022-10-16 13:15:59,020 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-10-16 13:15:59,046 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:15:59,046 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2022-10-16 13:15:59,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:15:59,200 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;@bc0d71c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:15:59,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2022-10-16 13:15:59,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 1747 states, 1206 states have (on average 1.357379767827529) internal successors, (1637), 1301 states have internal predecessors, (1637), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2022-10-16 13:15:59,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 13:15:59,237 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:15:59,238 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:15:59,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:15:59,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:15:59,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1657044445, now seen corresponding path program 1 times [2022-10-16 13:15:59,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:15:59,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390896439] [2022-10-16 13:15:59,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:15:59,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:15:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:16:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:16:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:16:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:16:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:16:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:16:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:16:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:16:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:16:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:16:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:16:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:16:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-10-16 13:16:00,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:16:00,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390896439] [2022-10-16 13:16:00,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390896439] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:16:00,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:16:00,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:16:00,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068426665] [2022-10-16 13:16:00,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:16:00,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:16:00,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:16:00,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:16:00,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:16:00,462 INFO L87 Difference]: Start difference. First operand has 1747 states, 1206 states have (on average 1.357379767827529) internal successors, (1637), 1301 states have internal predecessors, (1637), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 13:16:08,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:16:10,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:16:14,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:16:14,626 INFO L93 Difference]: Finished difference Result 5444 states and 7545 transitions. [2022-10-16 13:16:14,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:16:14,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 90 [2022-10-16 13:16:14,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:16:14,712 INFO L225 Difference]: With dead ends: 5444 [2022-10-16 13:16:14,712 INFO L226 Difference]: Without dead ends: 3643 [2022-10-16 13:16:14,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:16:14,746 INFO L413 NwaCegarLoop]: 2604 mSDtfsCounter, 3738 mSDsluCounter, 3622 mSDsCounter, 0 mSdLazyCounter, 2894 mSolverCounterSat, 1913 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4039 SdHoareTripleChecker+Valid, 6226 SdHoareTripleChecker+Invalid, 4809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1913 IncrementalHoareTripleChecker+Valid, 2894 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:16:14,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4039 Valid, 6226 Invalid, 4809 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1913 Valid, 2894 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2022-10-16 13:16:14,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3643 states. [2022-10-16 13:16:15,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3643 to 3287. [2022-10-16 13:16:15,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3287 states, 2308 states have (on average 1.3167244367417679) internal successors, (3039), 2417 states have internal predecessors, (3039), 705 states have call successors, (705), 211 states have call predecessors, (705), 212 states have return successors, (709), 700 states have call predecessors, (709), 705 states have call successors, (709) [2022-10-16 13:16:15,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3287 states to 3287 states and 4453 transitions. [2022-10-16 13:16:15,249 INFO L78 Accepts]: Start accepts. Automaton has 3287 states and 4453 transitions. Word has length 90 [2022-10-16 13:16:15,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:16:15,251 INFO L495 AbstractCegarLoop]: Abstraction has 3287 states and 4453 transitions. [2022-10-16 13:16:15,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 13:16:15,251 INFO L276 IsEmpty]: Start isEmpty. Operand 3287 states and 4453 transitions. [2022-10-16 13:16:15,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 13:16:15,264 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:16:15,264 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:16:15,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:16:15,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:16:15,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:16:15,266 INFO L85 PathProgramCache]: Analyzing trace with hash 472012067, now seen corresponding path program 1 times [2022-10-16 13:16:15,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:16:15,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945382951] [2022-10-16 13:16:15,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:16:15,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:16:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:16:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:16:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:16:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:16:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:16:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:16:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:16:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:16:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:16:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:16:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:16:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:16:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:16:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:15,911 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-10-16 13:16:15,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:16:15,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945382951] [2022-10-16 13:16:15,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945382951] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:16:15,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:16:15,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:16:15,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314206237] [2022-10-16 13:16:15,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:16:15,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:16:15,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:16:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:16:15,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:16:15,925 INFO L87 Difference]: Start difference. First operand 3287 states and 4453 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 13:16:23,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:16:25,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:16:28,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:16:28,949 INFO L93 Difference]: Finished difference Result 9143 states and 12399 transitions. [2022-10-16 13:16:28,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:16:28,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2022-10-16 13:16:28,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:16:29,005 INFO L225 Difference]: With dead ends: 9143 [2022-10-16 13:16:29,006 INFO L226 Difference]: Without dead ends: 5883 [2022-10-16 13:16:29,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:16:29,030 INFO L413 NwaCegarLoop]: 2509 mSDtfsCounter, 2721 mSDsluCounter, 3384 mSDsCounter, 0 mSdLazyCounter, 2752 mSolverCounterSat, 1523 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2909 SdHoareTripleChecker+Valid, 5893 SdHoareTripleChecker+Invalid, 4277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1523 IncrementalHoareTripleChecker+Valid, 2752 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:16:29,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2909 Valid, 5893 Invalid, 4277 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1523 Valid, 2752 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-10-16 13:16:29,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5883 states. [2022-10-16 13:16:29,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5883 to 5287. [2022-10-16 13:16:29,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5287 states, 3730 states have (on average 1.3077747989276138) internal successors, (4878), 3876 states have internal predecessors, (4878), 1114 states have call successors, (1114), 382 states have call predecessors, (1114), 381 states have return successors, (1120), 1094 states have call predecessors, (1120), 1114 states have call successors, (1120) [2022-10-16 13:16:29,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5287 states to 5287 states and 7112 transitions. [2022-10-16 13:16:29,547 INFO L78 Accepts]: Start accepts. Automaton has 5287 states and 7112 transitions. Word has length 95 [2022-10-16 13:16:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:16:29,550 INFO L495 AbstractCegarLoop]: Abstraction has 5287 states and 7112 transitions. [2022-10-16 13:16:29,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 13:16:29,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5287 states and 7112 transitions. [2022-10-16 13:16:29,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-10-16 13:16:29,557 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:16:29,558 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:16:29,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:16:29,560 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting xennet_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:16:29,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:16:29,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1840402973, now seen corresponding path program 1 times [2022-10-16 13:16:29,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:16:29,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162637102] [2022-10-16 13:16:29,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:16:29,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:16:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:29,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:16:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:16:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:29,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:16:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:16:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:29,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:16:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:16:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:29,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:16:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:30,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:16:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:30,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:16:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:30,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:16:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:30,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:16:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:30,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:16:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:30,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-10-16 13:16:30,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:30,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-16 13:16:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:30,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 13:16:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:30,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 13:16:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-10-16 13:16:30,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:16:30,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162637102] [2022-10-16 13:16:30,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162637102] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:16:30,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:16:30,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:16:30,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967443580] [2022-10-16 13:16:30,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:16:30,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:16:30,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:16:30,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:16:30,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:16:30,141 INFO L87 Difference]: Start difference. First operand 5287 states and 7112 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 13:16:39,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:16:42,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:16:45,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:16:47,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:16:47,656 INFO L93 Difference]: Finished difference Result 13548 states and 18387 transitions. [2022-10-16 13:16:47,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:16:47,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 111 [2022-10-16 13:16:47,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:16:47,724 INFO L225 Difference]: With dead ends: 13548 [2022-10-16 13:16:47,725 INFO L226 Difference]: Without dead ends: 8288 [2022-10-16 13:16:47,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:16:47,758 INFO L413 NwaCegarLoop]: 3306 mSDtfsCounter, 2322 mSDsluCounter, 5484 mSDsCounter, 0 mSdLazyCounter, 4218 mSolverCounterSat, 1174 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2506 SdHoareTripleChecker+Valid, 8790 SdHoareTripleChecker+Invalid, 5395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1174 IncrementalHoareTripleChecker+Valid, 4218 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:16:47,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2506 Valid, 8790 Invalid, 5395 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1174 Valid, 4218 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2022-10-16 13:16:47,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8288 states. [2022-10-16 13:16:48,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8288 to 7530. [2022-10-16 13:16:48,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 5378 states have (on average 1.312755671253254) internal successors, (7060), 5558 states have internal predecessors, (7060), 1552 states have call successors, (1552), 533 states have call predecessors, (1552), 538 states have return successors, (1576), 1530 states have call predecessors, (1576), 1552 states have call successors, (1576) [2022-10-16 13:16:48,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 10188 transitions. [2022-10-16 13:16:48,404 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 10188 transitions. Word has length 111 [2022-10-16 13:16:48,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:16:48,407 INFO L495 AbstractCegarLoop]: Abstraction has 7530 states and 10188 transitions. [2022-10-16 13:16:48,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 13:16:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 10188 transitions. [2022-10-16 13:16:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-16 13:16:48,419 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:16:48,419 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 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] [2022-10-16 13:16:48,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:16:48,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:16:48,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:16:48,420 INFO L85 PathProgramCache]: Analyzing trace with hash 374808599, now seen corresponding path program 1 times [2022-10-16 13:16:48,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:16:48,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116346064] [2022-10-16 13:16:48,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:16:48,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:16:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:16:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:16:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:16:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:16:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:16:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:16:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:16:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:16:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:16:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:16:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:48,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:16:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:49,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:16:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:49,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:16:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:49,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:16:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:16:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-10-16 13:16:49,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:16:49,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116346064] [2022-10-16 13:16:49,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116346064] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:16:49,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:16:49,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:16:49,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736834287] [2022-10-16 13:16:49,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:16:49,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:16:49,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:16:49,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:16:49,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:16:49,041 INFO L87 Difference]: Start difference. First operand 7530 states and 10188 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 13:16:55,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:16:57,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:00,178 INFO L93 Difference]: Finished difference Result 15727 states and 21426 transitions. [2022-10-16 13:17:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:17:00,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2022-10-16 13:17:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:00,241 INFO L225 Difference]: With dead ends: 15727 [2022-10-16 13:17:00,241 INFO L226 Difference]: Without dead ends: 8233 [2022-10-16 13:17:00,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:17:00,278 INFO L413 NwaCegarLoop]: 2159 mSDtfsCounter, 884 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 884 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 7045 SdHoareTripleChecker+Invalid, 3924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:00,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 7045 Invalid, 3924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [884 Valid, 3038 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-10-16 13:17:00,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8233 states. [2022-10-16 13:17:00,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8233 to 7530. [2022-10-16 13:17:00,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 5378 states have (on average 1.3097805875790256) internal successors, (7044), 5558 states have internal predecessors, (7044), 1552 states have call successors, (1552), 533 states have call predecessors, (1552), 538 states have return successors, (1576), 1530 states have call predecessors, (1576), 1552 states have call successors, (1576) [2022-10-16 13:17:00,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 10172 transitions. [2022-10-16 13:17:00,875 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 10172 transitions. Word has length 116 [2022-10-16 13:17:00,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:00,876 INFO L495 AbstractCegarLoop]: Abstraction has 7530 states and 10172 transitions. [2022-10-16 13:17:00,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 13:17:00,877 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 10172 transitions. [2022-10-16 13:17:00,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-10-16 13:17:00,879 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:00,880 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 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] [2022-10-16 13:17:00,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:17:00,880 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:17:00,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:00,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1922789352, now seen corresponding path program 1 times [2022-10-16 13:17:00,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:00,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506853909] [2022-10-16 13:17:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:00,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:17:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:17:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:17:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:17:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:17:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:17:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:17:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:17:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 13:17:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:01,430 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-10-16 13:17:01,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:01,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506853909] [2022-10-16 13:17:01,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506853909] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:01,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:01,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:17:01,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408215153] [2022-10-16 13:17:01,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:01,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:17:01,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:01,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:17:01,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:17:01,435 INFO L87 Difference]: Start difference. First operand 7530 states and 10172 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-10-16 13:17:07,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:10,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:12,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:14,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:14,047 INFO L93 Difference]: Finished difference Result 15722 states and 21409 transitions. [2022-10-16 13:17:14,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:17:14,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2022-10-16 13:17:14,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:14,106 INFO L225 Difference]: With dead ends: 15722 [2022-10-16 13:17:14,106 INFO L226 Difference]: Without dead ends: 8244 [2022-10-16 13:17:14,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:14,144 INFO L413 NwaCegarLoop]: 2143 mSDtfsCounter, 901 mSDsluCounter, 3371 mSDsCounter, 0 mSdLazyCounter, 2208 mSolverCounterSat, 888 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 5514 SdHoareTripleChecker+Invalid, 3099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 888 IncrementalHoareTripleChecker+Valid, 2208 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:14,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 5514 Invalid, 3099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [888 Valid, 2208 Invalid, 3 Unknown, 0 Unchecked, 12.0s Time] [2022-10-16 13:17:14,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8244 states. [2022-10-16 13:17:14,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8244 to 7528. [2022-10-16 13:17:14,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7528 states, 5382 states have (on average 1.305091044221479) internal successors, (7024), 5556 states have internal predecessors, (7024), 1552 states have call successors, (1552), 533 states have call predecessors, (1552), 538 states have return successors, (1576), 1530 states have call predecessors, (1576), 1552 states have call successors, (1576) [2022-10-16 13:17:14,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7528 states to 7528 states and 10152 transitions. [2022-10-16 13:17:14,608 INFO L78 Accepts]: Start accepts. Automaton has 7528 states and 10152 transitions. Word has length 123 [2022-10-16 13:17:14,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:14,609 INFO L495 AbstractCegarLoop]: Abstraction has 7528 states and 10152 transitions. [2022-10-16 13:17:14,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-10-16 13:17:14,610 INFO L276 IsEmpty]: Start isEmpty. Operand 7528 states and 10152 transitions. [2022-10-16 13:17:14,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-16 13:17:14,613 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:14,613 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 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] [2022-10-16 13:17:14,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:17:14,614 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:17:14,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:14,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1019375076, now seen corresponding path program 1 times [2022-10-16 13:17:14,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:14,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954628067] [2022-10-16 13:17:14,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:14,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:17:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:17:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:17:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:17:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:17:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:17:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:17:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:17:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 13:17:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 13:17:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-16 13:17:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:15,195 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-10-16 13:17:15,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:15,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954628067] [2022-10-16 13:17:15,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954628067] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:15,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:15,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:17:15,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396536365] [2022-10-16 13:17:15,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:15,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:17:15,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:15,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:17:15,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:17:15,199 INFO L87 Difference]: Start difference. First operand 7528 states and 10152 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 13:17:21,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:23,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:25,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:25,158 INFO L93 Difference]: Finished difference Result 15709 states and 21346 transitions. [2022-10-16 13:17:25,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:17:25,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 130 [2022-10-16 13:17:25,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:25,291 INFO L225 Difference]: With dead ends: 15709 [2022-10-16 13:17:25,291 INFO L226 Difference]: Without dead ends: 8233 [2022-10-16 13:17:25,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:25,314 INFO L413 NwaCegarLoop]: 2141 mSDtfsCounter, 884 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 886 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 5518 SdHoareTripleChecker+Invalid, 3078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 886 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:25,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 5518 Invalid, 3078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [886 Valid, 2190 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2022-10-16 13:17:25,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8233 states. [2022-10-16 13:17:25,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8233 to 7530. [2022-10-16 13:17:25,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7530 states, 5386 states have (on average 1.3033791310805793) internal successors, (7020), 5558 states have internal predecessors, (7020), 1552 states have call successors, (1552), 533 states have call predecessors, (1552), 538 states have return successors, (1576), 1530 states have call predecessors, (1576), 1552 states have call successors, (1576) [2022-10-16 13:17:25,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7530 states to 7530 states and 10148 transitions. [2022-10-16 13:17:25,754 INFO L78 Accepts]: Start accepts. Automaton has 7530 states and 10148 transitions. Word has length 130 [2022-10-16 13:17:25,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:25,755 INFO L495 AbstractCegarLoop]: Abstraction has 7530 states and 10148 transitions. [2022-10-16 13:17:25,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-10-16 13:17:25,755 INFO L276 IsEmpty]: Start isEmpty. Operand 7530 states and 10148 transitions. [2022-10-16 13:17:25,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 13:17:25,759 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:25,759 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:25,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 13:17:25,760 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting xennet_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:17:25,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:25,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2061117726, now seen corresponding path program 1 times [2022-10-16 13:17:25,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:25,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239444524] [2022-10-16 13:17:25,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:25,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:17:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:17:26,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:17:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:17:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:17:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:17:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:17:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:17:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 13:17:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 13:17:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-10-16 13:17:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-10-16 13:17:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-10-16 13:17:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:26,336 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-10-16 13:17:26,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:26,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239444524] [2022-10-16 13:17:26,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239444524] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:26,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:26,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:17:26,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245623855] [2022-10-16 13:17:26,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:26,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:17:26,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:26,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:17:26,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:26,339 INFO L87 Difference]: Start difference. First operand 7530 states and 10148 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-16 13:17:34,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:37,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:40,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:43,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:46,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:48,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:17:50,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:17:50,533 INFO L93 Difference]: Finished difference Result 20979 states and 28491 transitions. [2022-10-16 13:17:50,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:17:50,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2022-10-16 13:17:50,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:17:50,606 INFO L225 Difference]: With dead ends: 20979 [2022-10-16 13:17:50,607 INFO L226 Difference]: Without dead ends: 13501 [2022-10-16 13:17:50,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-10-16 13:17:50,635 INFO L413 NwaCegarLoop]: 2773 mSDtfsCounter, 3425 mSDsluCounter, 4487 mSDsCounter, 0 mSdLazyCounter, 4204 mSolverCounterSat, 1715 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3707 SdHoareTripleChecker+Valid, 7260 SdHoareTripleChecker+Invalid, 5925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1715 IncrementalHoareTripleChecker+Valid, 4204 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:17:50,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3707 Valid, 7260 Invalid, 5925 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1715 Valid, 4204 Invalid, 6 Unknown, 0 Unchecked, 23.2s Time] [2022-10-16 13:17:50,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13501 states. [2022-10-16 13:17:51,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13501 to 12157. [2022-10-16 13:17:51,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12157 states, 8714 states have (on average 1.2996327748450769) internal successors, (11325), 8951 states have internal predecessors, (11325), 2500 states have call successors, (2500), 883 states have call predecessors, (2500), 889 states have return successors, (2536), 2476 states have call predecessors, (2536), 2500 states have call successors, (2536) [2022-10-16 13:17:51,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12157 states to 12157 states and 16361 transitions. [2022-10-16 13:17:51,411 INFO L78 Accepts]: Start accepts. Automaton has 12157 states and 16361 transitions. Word has length 145 [2022-10-16 13:17:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:17:51,412 INFO L495 AbstractCegarLoop]: Abstraction has 12157 states and 16361 transitions. [2022-10-16 13:17:51,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-10-16 13:17:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand 12157 states and 16361 transitions. [2022-10-16 13:17:51,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-10-16 13:17:51,416 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:17:51,416 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:17:51,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 13:17:51,417 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting cpumask_nextErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:17:51,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:17:51,417 INFO L85 PathProgramCache]: Analyzing trace with hash 58124110, now seen corresponding path program 1 times [2022-10-16 13:17:51,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:17:51,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050600792] [2022-10-16 13:17:51,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:17:51,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:17:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:17:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:17:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:17:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:17:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:17:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:17:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:17:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:17:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:17:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:17:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:17:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:17:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:17:51,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 13:17:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 13:17:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 13:17:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 13:17:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:51,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-16 13:17:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:17:52,001 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-16 13:17:52,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:17:52,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050600792] [2022-10-16 13:17:52,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050600792] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:17:52,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:17:52,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:17:52,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049017313] [2022-10-16 13:17:52,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:17:52,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:17:52,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:17:52,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:17:52,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:17:52,004 INFO L87 Difference]: Start difference. First operand 12157 states and 16361 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-10-16 13:17:58,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:01,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:03,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:06,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:08,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:09,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:09,295 INFO L93 Difference]: Finished difference Result 14279 states and 19697 transitions. [2022-10-16 13:18:09,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:18:09,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2022-10-16 13:18:09,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:09,371 INFO L225 Difference]: With dead ends: 14279 [2022-10-16 13:18:09,371 INFO L226 Difference]: Without dead ends: 14278 [2022-10-16 13:18:09,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:18:09,381 INFO L413 NwaCegarLoop]: 2144 mSDtfsCounter, 1530 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 1400 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 5574 SdHoareTripleChecker+Invalid, 3827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1400 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:09,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 5574 Invalid, 3827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1400 Valid, 2422 Invalid, 5 Unknown, 0 Unchecked, 16.5s Time] [2022-10-16 13:18:09,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14278 states. [2022-10-16 13:18:10,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14278 to 12378. [2022-10-16 13:18:10,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12378 states, 8874 states have (on average 1.299864773495605) internal successors, (11535), 9119 states have internal predecessors, (11535), 2553 states have call successors, (2553), 883 states have call predecessors, (2553), 897 states have return successors, (2637), 2533 states have call predecessors, (2637), 2553 states have call successors, (2637) [2022-10-16 13:18:10,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12378 states to 12378 states and 16725 transitions. [2022-10-16 13:18:10,448 INFO L78 Accepts]: Start accepts. Automaton has 12378 states and 16725 transitions. Word has length 147 [2022-10-16 13:18:10,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:10,449 INFO L495 AbstractCegarLoop]: Abstraction has 12378 states and 16725 transitions. [2022-10-16 13:18:10,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 1 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-10-16 13:18:10,449 INFO L276 IsEmpty]: Start isEmpty. Operand 12378 states and 16725 transitions. [2022-10-16 13:18:10,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-16 13:18:10,454 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:10,454 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:10,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 13:18:10,455 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:18:10,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:10,455 INFO L85 PathProgramCache]: Analyzing trace with hash 939228976, now seen corresponding path program 1 times [2022-10-16 13:18:10,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:10,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420164270] [2022-10-16 13:18:10,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:10,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:18:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:18:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:18:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:18:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:18:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:18:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:18:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:18:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:18:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:18:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:18:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 13:18:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 13:18:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 13:18:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-10-16 13:18:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:18:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-10-16 13:18:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:10,992 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2022-10-16 13:18:10,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:10,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420164270] [2022-10-16 13:18:10,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420164270] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:10,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:18:10,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:18:10,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473909010] [2022-10-16 13:18:10,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:10,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:18:10,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:10,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:18:10,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:18:10,995 INFO L87 Difference]: Start difference. First operand 12378 states and 16725 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-16 13:18:19,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:22,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:24,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:27,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:29,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:31,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:33,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:36,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:36,077 INFO L93 Difference]: Finished difference Result 20247 states and 27842 transitions. [2022-10-16 13:18:36,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:18:36,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 150 [2022-10-16 13:18:36,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:36,159 INFO L225 Difference]: With dead ends: 20247 [2022-10-16 13:18:36,160 INFO L226 Difference]: Without dead ends: 20241 [2022-10-16 13:18:36,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:18:36,171 INFO L413 NwaCegarLoop]: 2643 mSDtfsCounter, 4585 mSDsluCounter, 3668 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 2813 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4935 SdHoareTripleChecker+Valid, 6311 SdHoareTripleChecker+Invalid, 6154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2813 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:36,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4935 Valid, 6311 Invalid, 6154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2813 Valid, 3334 Invalid, 7 Unknown, 0 Unchecked, 23.6s Time] [2022-10-16 13:18:36,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20241 states. [2022-10-16 13:18:37,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20241 to 17444. [2022-10-16 13:18:37,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17444 states, 12515 states have (on average 1.2964442668797442) internal successors, (16225), 12837 states have internal predecessors, (16225), 3602 states have call successors, (3602), 1258 states have call predecessors, (3602), 1273 states have return successors, (3698), 3572 states have call predecessors, (3698), 3602 states have call successors, (3698) [2022-10-16 13:18:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17444 states to 17444 states and 23525 transitions. [2022-10-16 13:18:37,623 INFO L78 Accepts]: Start accepts. Automaton has 17444 states and 23525 transitions. Word has length 150 [2022-10-16 13:18:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:37,625 INFO L495 AbstractCegarLoop]: Abstraction has 17444 states and 23525 transitions. [2022-10-16 13:18:37,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-16 13:18:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand 17444 states and 23525 transitions. [2022-10-16 13:18:37,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-10-16 13:18:37,629 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:37,629 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:37,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 13:18:37,630 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting cpumask_nextErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:18:37,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:37,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1801848838, now seen corresponding path program 1 times [2022-10-16 13:18:37,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:37,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181004294] [2022-10-16 13:18:37,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:37,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:38,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:18:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:18:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:18:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:18:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:18:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:18:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:18:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:18:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:18:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:18:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:18:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 13:18:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 13:18:38,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 13:18:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 13:18:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-16 13:18:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:38,246 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-10-16 13:18:38,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:38,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181004294] [2022-10-16 13:18:38,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181004294] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:38,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:18:38,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:18:38,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959146922] [2022-10-16 13:18:38,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:38,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:18:38,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:38,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:18:38,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:18:38,250 INFO L87 Difference]: Start difference. First operand 17444 states and 23525 transitions. Second operand has 6 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-10-16 13:18:44,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:47,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:50,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:52,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:54,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:18:55,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:18:55,557 INFO L93 Difference]: Finished difference Result 20238 states and 27898 transitions. [2022-10-16 13:18:55,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:18:55,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2022-10-16 13:18:55,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:18:55,613 INFO L225 Difference]: With dead ends: 20238 [2022-10-16 13:18:55,613 INFO L226 Difference]: Without dead ends: 20237 [2022-10-16 13:18:55,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:18:55,622 INFO L413 NwaCegarLoop]: 2142 mSDtfsCounter, 1527 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 2419 mSolverCounterSat, 1403 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 5571 SdHoareTripleChecker+Invalid, 3827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1403 IncrementalHoareTripleChecker+Valid, 2419 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:18:55,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 5571 Invalid, 3827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1403 Valid, 2419 Invalid, 5 Unknown, 0 Unchecked, 16.2s Time] [2022-10-16 13:18:55,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20237 states. [2022-10-16 13:18:56,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20237 to 17456. [2022-10-16 13:18:56,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17456 states, 12527 states have (on average 1.2961602937654666) internal successors, (16237), 12849 states have internal predecessors, (16237), 3602 states have call successors, (3602), 1258 states have call predecessors, (3602), 1273 states have return successors, (3698), 3572 states have call predecessors, (3698), 3602 states have call successors, (3698) [2022-10-16 13:18:57,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17456 states to 17456 states and 23537 transitions. [2022-10-16 13:18:57,032 INFO L78 Accepts]: Start accepts. Automaton has 17456 states and 23537 transitions. Word has length 148 [2022-10-16 13:18:57,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:18:57,033 INFO L495 AbstractCegarLoop]: Abstraction has 17456 states and 23537 transitions. [2022-10-16 13:18:57,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-10-16 13:18:57,033 INFO L276 IsEmpty]: Start isEmpty. Operand 17456 states and 23537 transitions. [2022-10-16 13:18:57,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-10-16 13:18:57,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:18:57,038 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:18:57,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 13:18:57,038 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting cpumask_nextErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:18:57,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:18:57,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1730212139, now seen corresponding path program 1 times [2022-10-16 13:18:57,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:18:57,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46953438] [2022-10-16 13:18:57,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:18:57,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:18:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:18:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:18:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:18:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:18:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:18:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:18:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:18:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:18:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:18:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:18:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:18:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:18:57,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:18:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 13:18:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 13:18:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 13:18:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 13:18:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-16 13:18:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-16 13:18:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-16 13:18:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:18:57,619 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-10-16 13:18:57,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:18:57,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46953438] [2022-10-16 13:18:57,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46953438] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:18:57,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:18:57,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:18:57,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772322068] [2022-10-16 13:18:57,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:18:57,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:18:57,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:18:57,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:18:57,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:18:57,622 INFO L87 Difference]: Start difference. First operand 17456 states and 23537 transitions. Second operand has 8 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 13:19:05,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:08,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:10,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:13,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:15,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:19:17,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:19:17,004 INFO L93 Difference]: Finished difference Result 20431 states and 28166 transitions. [2022-10-16 13:19:17,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:19:17,005 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 159 [2022-10-16 13:19:17,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:19:17,079 INFO L225 Difference]: With dead ends: 20431 [2022-10-16 13:19:17,079 INFO L226 Difference]: Without dead ends: 20430 [2022-10-16 13:19:17,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-10-16 13:19:17,091 INFO L413 NwaCegarLoop]: 2153 mSDtfsCounter, 1587 mSDsluCounter, 6219 mSDsCounter, 0 mSdLazyCounter, 4410 mSolverCounterSat, 1430 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 8372 SdHoareTripleChecker+Invalid, 5845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1430 IncrementalHoareTripleChecker+Valid, 4410 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:19:17,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1654 Valid, 8372 Invalid, 5845 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1430 Valid, 4410 Invalid, 5 Unknown, 0 Unchecked, 18.0s Time] [2022-10-16 13:19:17,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20430 states. [2022-10-16 13:19:18,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20430 to 17640. [2022-10-16 13:19:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17640 states, 12655 states have (on average 1.2963255630185697) internal successors, (16405), 12993 states have internal predecessors, (16405), 3650 states have call successors, (3650), 1266 states have call predecessors, (3650), 1281 states have return successors, (3746), 3612 states have call predecessors, (3746), 3650 states have call successors, (3746) [2022-10-16 13:19:18,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17640 states to 17640 states and 23801 transitions. [2022-10-16 13:19:18,314 INFO L78 Accepts]: Start accepts. Automaton has 17640 states and 23801 transitions. Word has length 159 [2022-10-16 13:19:18,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:19:18,315 INFO L495 AbstractCegarLoop]: Abstraction has 17640 states and 23801 transitions. [2022-10-16 13:19:18,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-10-16 13:19:18,315 INFO L276 IsEmpty]: Start isEmpty. Operand 17640 states and 23801 transitions. [2022-10-16 13:19:18,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-10-16 13:19:18,320 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:19:18,320 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:19:18,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 13:19:18,321 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting cpumask_nextErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [netback_changedErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, netback_changedErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 63 more)] === [2022-10-16 13:19:18,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:19:18,322 INFO L85 PathProgramCache]: Analyzing trace with hash -2096967329, now seen corresponding path program 1 times [2022-10-16 13:19:18,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:19:18,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205512520] [2022-10-16 13:19:18,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:19:18,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:19:18,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:19:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:19:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:19:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:19:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:19:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:19:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:19:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:19:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:19:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-16 13:19:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-10-16 13:19:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:19:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-10-16 13:19:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 13:19:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-10-16 13:19:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 13:19:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-16 13:19:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-16 13:19:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-16 13:19:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-10-16 13:19:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:19:18,967 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-10-16 13:19:18,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:19:18,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205512520] [2022-10-16 13:19:18,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205512520] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:19:18,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:19:18,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 13:19:18,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392326616] [2022-10-16 13:19:18,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:19:18,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 13:19:18,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:19:18,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 13:19:18,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:19:18,970 INFO L87 Difference]: Start difference. First operand 17640 states and 23801 transitions. Second operand has 8 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20)