/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_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-vp7045.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:17:50,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:17:50,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:17:50,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:17:50,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:17:50,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:17:50,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:17:50,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:17:50,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:17:50,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:17:50,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:17:50,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:17:50,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:17:50,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:17:50,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:17:50,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:17:50,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:17:50,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:17:50,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:17:50,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:17:50,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:17:50,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:17:50,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:17:50,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:17:50,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:17:50,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:17:50,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:17:50,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:17:50,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:17:50,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:17:50,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:17:50,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:17:50,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:17:50,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:17:50,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:17:50,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:17:50,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:17:50,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:17:50,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:17:50,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:17:50,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:17:50,850 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:17:50,906 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:17:50,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:17:50,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:17:50,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:17:50,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:17:50,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:17:50,913 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:17:50,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:17:50,913 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:17:50,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:17:50,915 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:17:50,915 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:17:50,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:17:50,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:17:50,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:17:50,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:17:50,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:17:50,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:17:50,917 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:17:50,917 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:17:50,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:17:50,918 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:17:50,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:17:50,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:17:50,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:17:50,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:17:50,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:17:50,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:17:50,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:17:50,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:17:50,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:17:50,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:17:50,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:17:50,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:17:51,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:17:51,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:17:51,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:17:51,397 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:17:51,399 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:17:51,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-vp7045.ko-entry_point.cil.out.i [2022-10-15 21:17:51,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/474b58451/ae13a5f304164a408e4b400516bb4dc8/FLAGad2e4b763 [2022-10-15 21:17:52,452 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:17:52,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-vp7045.ko-entry_point.cil.out.i [2022-10-15 21:17:52,510 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/474b58451/ae13a5f304164a408e4b400516bb4dc8/FLAGad2e4b763 [2022-10-15 21:17:52,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/474b58451/ae13a5f304164a408e4b400516bb4dc8 [2022-10-15 21:17:52,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:17:52,924 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:17:52,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:17:52,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:17:52,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:17:52,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:17:52" (1/1) ... [2022-10-15 21:17:52,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57345205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:52, skipping insertion in model container [2022-10-15 21:17:52,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:17:52" (1/1) ... [2022-10-15 21:17:52,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:17:53,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:17:53,774 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6675] [2022-10-15 21:17:53,774 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6676-6677] [2022-10-15 21:17:53,894 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_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-vp7045.ko-entry_point.cil.out.i[194525,194538] [2022-10-15 21:17:54,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:17:54,387 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:17:54,668 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6675] [2022-10-15 21:17:54,669 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6676-6677] [2022-10-15 21:17:54,675 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_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-vp7045.ko-entry_point.cil.out.i[194525,194538] [2022-10-15 21:17:54,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:17:55,049 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:17:55,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55 WrapperNode [2022-10-15 21:17:55,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:17:55,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:17:55,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:17:55,053 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:17:55,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,296 INFO L138 Inliner]: procedures = 114, calls = 992, calls flagged for inlining = 34, calls inlined = 30, statements flattened = 1540 [2022-10-15 21:17:55,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:17:55,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:17:55,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:17:55,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:17:55,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,499 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:17:55,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:17:55,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:17:55,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:17:55,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (1/1) ... [2022-10-15 21:17:55,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:17:55,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:17:55,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:17:55,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:17:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_fe_set_frontend [2022-10-15 21:17:55,673 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_fe_set_frontend [2022-10-15 21:17:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_fe_read_ber [2022-10-15 21:17:55,676 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_fe_read_ber [2022-10-15 21:17:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:17:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:17:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:17:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:17:55,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:17:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:17:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:17:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:17:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:17:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:17:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_fe_read_unc_blocks [2022-10-15 21:17:55,677 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_fe_read_unc_blocks [2022-10-15 21:17:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_fe_release [2022-10-15 21:17:55,678 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_fe_release [2022-10-15 21:17:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:17:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_fe_read_status [2022-10-15 21:17:55,678 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_fe_read_status [2022-10-15 21:17:55,678 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_usb_op [2022-10-15 21:17:55,678 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_usb_op [2022-10-15 21:17:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:17:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:17:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:17:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_fe_read_signal_strength [2022-10-15 21:17:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_fe_read_signal_strength [2022-10-15 21:17:55,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:17:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_read_reg [2022-10-15 21:17:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_read_reg [2022-10-15 21:17:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:17:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:17:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_fe_get_tune_settings [2022-10-15 21:17:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_fe_get_tune_settings [2022-10-15 21:17:55,680 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-15 21:17:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-15 21:17:55,681 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_fe_sleep [2022-10-15 21:17:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_fe_sleep [2022-10-15 21:17:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:17:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:17:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_rc_query [2022-10-15 21:17:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_rc_query [2022-10-15 21:17:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure vp7045_power_ctrl [2022-10-15 21:17:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vp7045_power_ctrl [2022-10-15 21:17:55,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:17:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:17:55,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:17:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:17:55,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:17:55,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:17:56,251 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:17:56,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:17:56,659 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:18:16,803 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:18:16,816 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:18:16,817 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 21:18:16,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:18:16 BoogieIcfgContainer [2022-10-15 21:18:16,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:18:16,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:18:16,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:18:16,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:18:16,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:17:52" (1/3) ... [2022-10-15 21:18:16,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a0a873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:18:16, skipping insertion in model container [2022-10-15 21:18:16,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:17:55" (2/3) ... [2022-10-15 21:18:16,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a0a873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:18:16, skipping insertion in model container [2022-10-15 21:18:16,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:18:16" (3/3) ... [2022-10-15 21:18:16,830 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--media--usb--dvb-usb--dvb-usb-vp7045.ko-entry_point.cil.out.i [2022-10-15 21:18:16,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:18:16,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2022-10-15 21:18:16,937 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:18:16,946 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;@27ad3b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:18:16,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-10-15 21:18:16,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 432 states, 306 states have (on average 1.5065359477124183) internal successors, (461), 351 states have internal predecessors, (461), 68 states have call successors, (68), 18 states have call predecessors, (68), 17 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-10-15 21:18:16,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 21:18:16,967 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:18:16,968 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:18:16,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [vp7045_fe_read_berErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:18:16,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:18:16,975 INFO L85 PathProgramCache]: Analyzing trace with hash -788599797, now seen corresponding path program 1 times [2022-10-15 21:18:16,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:18:16,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410830946] [2022-10-15 21:18:16,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:18:16,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:18:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:17,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:18:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:17,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:18:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:17,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:18:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:18,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:18:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:18,039 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:18:18,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:18:18,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410830946] [2022-10-15 21:18:18,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410830946] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:18:18,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:18:18,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:18:18,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603223902] [2022-10-15 21:18:18,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:18:18,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:18:18,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:18:18,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:18:18,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:18:18,088 INFO L87 Difference]: Start difference. First operand has 432 states, 306 states have (on average 1.5065359477124183) internal successors, (461), 351 states have internal predecessors, (461), 68 states have call successors, (68), 18 states have call predecessors, (68), 17 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:18:20,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:18:21,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:18:21,180 INFO L93 Difference]: Finished difference Result 855 states and 1238 transitions. [2022-10-15 21:18:21,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:18:21,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2022-10-15 21:18:21,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:18:21,201 INFO L225 Difference]: With dead ends: 855 [2022-10-15 21:18:21,201 INFO L226 Difference]: Without dead ends: 412 [2022-10-15 21:18:21,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:18:21,216 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 25 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:18:21,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 922 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 142 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-10-15 21:18:21,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2022-10-15 21:18:21,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 406. [2022-10-15 21:18:21,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 298 states have (on average 1.4463087248322148) internal successors, (431), 325 states have internal predecessors, (431), 63 states have call successors, (63), 17 states have call predecessors, (63), 17 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-10-15 21:18:21,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 557 transitions. [2022-10-15 21:18:21,381 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 557 transitions. Word has length 37 [2022-10-15 21:18:21,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:18:21,382 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 557 transitions. [2022-10-15 21:18:21,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:18:21,382 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 557 transitions. [2022-10-15 21:18:21,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-15 21:18:21,388 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:18:21,388 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:18:21,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:18:21,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [vp7045_fe_read_berErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:18:21,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:18:21,391 INFO L85 PathProgramCache]: Analyzing trace with hash -856130167, now seen corresponding path program 1 times [2022-10-15 21:18:21,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:18:21,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434566214] [2022-10-15 21:18:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:18:21,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:18:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:21,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:18:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:21,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:18:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:21,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:18:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:18:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:22,025 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:18:22,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:18:22,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434566214] [2022-10-15 21:18:22,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434566214] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:18:22,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:18:22,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:18:22,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953176819] [2022-10-15 21:18:22,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:18:22,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:18:22,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:18:22,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:18:22,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:18:22,030 INFO L87 Difference]: Start difference. First operand 406 states and 557 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:18:24,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:18:25,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:18:25,336 INFO L93 Difference]: Finished difference Result 1177 states and 1636 transitions. [2022-10-15 21:18:25,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:18:25,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2022-10-15 21:18:25,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:18:25,346 INFO L225 Difference]: With dead ends: 1177 [2022-10-15 21:18:25,347 INFO L226 Difference]: Without dead ends: 782 [2022-10-15 21:18:25,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:18:25,351 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 540 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 131 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 1470 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:18:25,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 1470 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-10-15 21:18:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2022-10-15 21:18:25,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 745. [2022-10-15 21:18:25,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 564 states have (on average 1.452127659574468) internal successors, (819), 591 states have internal predecessors, (819), 119 states have call successors, (119), 34 states have call predecessors, (119), 34 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2022-10-15 21:18:25,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1057 transitions. [2022-10-15 21:18:25,409 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1057 transitions. Word has length 38 [2022-10-15 21:18:25,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:18:25,410 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1057 transitions. [2022-10-15 21:18:25,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:18:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1057 transitions. [2022-10-15 21:18:25,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-15 21:18:25,412 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:18:25,413 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:18:25,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:18:25,413 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vp7045_fe_read_berErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:18:25,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:18:25,414 INFO L85 PathProgramCache]: Analyzing trace with hash -138304562, now seen corresponding path program 1 times [2022-10-15 21:18:25,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:18:25,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370496785] [2022-10-15 21:18:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:18:25,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:18:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:25,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:18:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:25,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:18:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:25,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:18:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:25,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:18:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:25,932 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:18:25,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:18:25,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370496785] [2022-10-15 21:18:25,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370496785] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:18:25,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:18:25,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:18:25,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065314361] [2022-10-15 21:18:25,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:18:25,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:18:25,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:18:25,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:18:25,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:18:25,936 INFO L87 Difference]: Start difference. First operand 745 states and 1057 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:18:27,999 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 [] [2022-10-15 21:18:29,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:18:29,600 INFO L93 Difference]: Finished difference Result 2091 states and 2995 transitions. [2022-10-15 21:18:29,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:18:29,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2022-10-15 21:18:29,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:18:29,613 INFO L225 Difference]: With dead ends: 2091 [2022-10-15 21:18:29,613 INFO L226 Difference]: Without dead ends: 1357 [2022-10-15 21:18:29,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:18:29,619 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 462 mSDsluCounter, 851 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 117 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:18:29,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 1516 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 296 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-10-15 21:18:29,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-10-15 21:18:29,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1315. [2022-10-15 21:18:29,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1005 states have (on average 1.4437810945273633) internal successors, (1451), 1032 states have internal predecessors, (1451), 218 states have call successors, (218), 64 states have call predecessors, (218), 64 states have return successors, (218), 218 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-15 21:18:29,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1887 transitions. [2022-10-15 21:18:29,716 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1887 transitions. Word has length 39 [2022-10-15 21:18:29,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:18:29,716 INFO L495 AbstractCegarLoop]: Abstraction has 1315 states and 1887 transitions. [2022-10-15 21:18:29,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:18:29,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1887 transitions. [2022-10-15 21:18:29,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-15 21:18:29,726 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:18:29,726 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-10-15 21:18:29,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:18:29,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [vp7045_fe_read_berErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:18:29,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:18:29,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1973435430, now seen corresponding path program 1 times [2022-10-15 21:18:29,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:18:29,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802641956] [2022-10-15 21:18:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:18:29,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:18:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:30,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:18:30,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:30,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:18:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:30,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:18:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:30,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:18:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:30,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:18:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-15 21:18:30,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:18:30,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802641956] [2022-10-15 21:18:30,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802641956] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:18:30,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:18:30,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:18:30,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170290613] [2022-10-15 21:18:30,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:18:30,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:18:30,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:18:30,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:18:30,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:18:30,299 INFO L87 Difference]: Start difference. First operand 1315 states and 1887 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:18:32,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:18:34,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:18:35,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:18:35,295 INFO L93 Difference]: Finished difference Result 2644 states and 3824 transitions. [2022-10-15 21:18:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:18:35,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 57 [2022-10-15 21:18:35,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:18:35,308 INFO L225 Difference]: With dead ends: 2644 [2022-10-15 21:18:35,309 INFO L226 Difference]: Without dead ends: 1338 [2022-10-15 21:18:35,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:18:35,317 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 24 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 58 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:18:35,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1403 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 182 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time] [2022-10-15 21:18:35,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2022-10-15 21:18:35,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1309. [2022-10-15 21:18:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 999 states have (on average 1.4444444444444444) internal successors, (1443), 1027 states have internal predecessors, (1443), 218 states have call successors, (218), 64 states have call predecessors, (218), 64 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2022-10-15 21:18:35,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1879 transitions. [2022-10-15 21:18:35,400 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1879 transitions. Word has length 57 [2022-10-15 21:18:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:18:35,401 INFO L495 AbstractCegarLoop]: Abstraction has 1309 states and 1879 transitions. [2022-10-15 21:18:35,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:18:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1879 transitions. [2022-10-15 21:18:35,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 21:18:35,403 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:18:35,404 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-10-15 21:18:35,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:18:35,404 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [vp7045_fe_read_berErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:18:35,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:18:35,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1084842464, now seen corresponding path program 1 times [2022-10-15 21:18:35,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:18:35,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483578915] [2022-10-15 21:18:35,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:18:35,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:18:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:36,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:18:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:36,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:18:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:18:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:36,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:18:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:36,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:18:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:36,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:18:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:36,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:18:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-15 21:18:36,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:18:36,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483578915] [2022-10-15 21:18:36,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483578915] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:18:36,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:18:36,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:18:36,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496620805] [2022-10-15 21:18:36,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:18:36,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:18:36,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:18:36,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:18:36,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:18:36,151 INFO L87 Difference]: Start difference. First operand 1309 states and 1879 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:18:38,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:18:40,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:18:41,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:18:41,564 INFO L93 Difference]: Finished difference Result 3294 states and 4757 transitions. [2022-10-15 21:18:41,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:18:41,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2022-10-15 21:18:41,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:18:41,581 INFO L225 Difference]: With dead ends: 3294 [2022-10-15 21:18:41,581 INFO L226 Difference]: Without dead ends: 1996 [2022-10-15 21:18:41,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:18:41,590 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 530 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 87 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:18:41,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1908 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 249 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-10-15 21:18:41,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2022-10-15 21:18:41,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1934. [2022-10-15 21:18:41,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1934 states, 1487 states have (on average 1.4438466711499665) internal successors, (2147), 1515 states have internal predecessors, (2147), 323 states have call successors, (323), 96 states have call predecessors, (323), 96 states have return successors, (323), 322 states have call predecessors, (323), 323 states have call successors, (323) [2022-10-15 21:18:41,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 2793 transitions. [2022-10-15 21:18:41,704 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 2793 transitions. Word has length 71 [2022-10-15 21:18:41,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:18:41,705 INFO L495 AbstractCegarLoop]: Abstraction has 1934 states and 2793 transitions. [2022-10-15 21:18:41,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:18:41,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 2793 transitions. [2022-10-15 21:18:41,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 21:18:41,707 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:18:41,708 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-10-15 21:18:41,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:18:41,708 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [vp7045_fe_read_berErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:18:41,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:18:41,709 INFO L85 PathProgramCache]: Analyzing trace with hash 78756174, now seen corresponding path program 1 times [2022-10-15 21:18:41,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:18:41,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20587208] [2022-10-15 21:18:41,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:18:41,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:18:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:18:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:42,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:18:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:18:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:42,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:18:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:42,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:18:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:18:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:42,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:18:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-10-15 21:18:42,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:18:42,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20587208] [2022-10-15 21:18:42,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20587208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:18:42,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:18:42,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:18:42,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479351489] [2022-10-15 21:18:42,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:18:42,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:18:42,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:18:42,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:18:42,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:18:42,419 INFO L87 Difference]: Start difference. First operand 1934 states and 2793 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:18:44,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:18:45,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:18:45,820 INFO L93 Difference]: Finished difference Result 2939 states and 4279 transitions. [2022-10-15 21:18:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:18:45,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2022-10-15 21:18:45,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:18:45,848 INFO L225 Difference]: With dead ends: 2939 [2022-10-15 21:18:45,848 INFO L226 Difference]: Without dead ends: 2927 [2022-10-15 21:18:45,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:18:45,852 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 531 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 141 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:18:45,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 1426 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-10-15 21:18:45,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2022-10-15 21:18:46,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2859. [2022-10-15 21:18:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2207 states have (on average 1.4286361576801088) internal successors, (3153), 2236 states have internal predecessors, (3153), 481 states have call successors, (481), 143 states have call predecessors, (481), 143 states have return successors, (481), 479 states have call predecessors, (481), 481 states have call successors, (481) [2022-10-15 21:18:46,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 4115 transitions. [2022-10-15 21:18:46,042 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 4115 transitions. Word has length 72 [2022-10-15 21:18:46,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:18:46,043 INFO L495 AbstractCegarLoop]: Abstraction has 2859 states and 4115 transitions. [2022-10-15 21:18:46,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-10-15 21:18:46,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 4115 transitions. [2022-10-15 21:18:46,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 21:18:46,046 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:18:46,046 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-10-15 21:18:46,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:18:46,047 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [vp7045_fe_read_berErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vp7045_fe_read_berErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2022-10-15 21:18:46,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:18:46,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1110092937, now seen corresponding path program 1 times [2022-10-15 21:18:46,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:18:46,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951331290] [2022-10-15 21:18:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:18:46,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:18:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:46,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:18:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:46,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:18:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:46,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:18:46,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:46,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:18:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:18:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:46,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:18:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:46,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-10-15 21:18:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:18:46,811 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-15 21:18:46,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:18:46,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951331290] [2022-10-15 21:18:46,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951331290] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:18:46,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:18:46,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:18:46,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129455825] [2022-10-15 21:18:46,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:18:46,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:18:46,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:18:46,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:18:46,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:18:46,814 INFO L87 Difference]: Start difference. First operand 2859 states and 4115 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)