/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--block--paride--pt.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:16:52,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:16:52,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:16:52,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:16:52,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:16:52,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:16:52,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:16:52,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:16:52,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:16:52,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:16:52,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:16:52,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:16:52,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:16:52,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:16:52,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:16:52,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:16:52,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:16:52,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:16:52,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:16:52,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:16:52,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:16:52,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:16:52,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:16:52,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:16:52,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:16:52,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:16:52,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:16:52,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:16:52,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:16:52,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:16:52,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:16:52,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:16:52,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:16:52,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:16:52,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:16:52,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:16:52,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:16:52,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:16:52,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:16:52,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:16:52,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:16:52,319 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 21:16:52,348 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:16:52,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:16:52,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:16:52,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:16:52,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:16:52,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:16:52,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:16:52,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:16:52,351 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:16:52,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:16:52,352 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:16:52,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:16:52,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:16:52,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:16:52,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:16:52,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:16:52,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:16:52,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:16:52,353 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:16:52,353 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:16:52,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:16:52,354 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:16:52,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:16:52,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:16:52,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:16:52,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:16:52,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:16:52,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:16:52,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:16:52,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:16:52,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:16:52,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:16:52,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:16:52,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:16:52,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:16:52,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:16:52,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:16:52,771 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:16:52,772 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:16:52,774 INFO L432 ainManager$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--block--paride--pt.ko-entry_point.cil.out.i [2022-10-15 21:16:52,841 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/787353cda/f851ef51f2d645acb6ea2633d6146444/FLAG1d0f80b60 [2022-10-15 21:16:53,757 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:16:53,758 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--block--paride--pt.ko-entry_point.cil.out.i [2022-10-15 21:16:53,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/787353cda/f851ef51f2d645acb6ea2633d6146444/FLAG1d0f80b60 [2022-10-15 21:16:53,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/787353cda/f851ef51f2d645acb6ea2633d6146444 [2022-10-15 21:16:53,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:16:53,830 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:16:53,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:16:53,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:16:53,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:16:53,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:16:53" (1/1) ... [2022-10-15 21:16:53,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4474de33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:53, skipping insertion in model container [2022-10-15 21:16:53,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:16:53" (1/1) ... [2022-10-15 21:16:53,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:16:53,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:16:54,412 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3059] [2022-10-15 21:16:54,413 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3060-3061] [2022-10-15 21:16:54,567 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--block--paride--pt.ko-entry_point.cil.out.i[90990,91003] [2022-10-15 21:16:55,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:16:55,082 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:16:55,196 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3059] [2022-10-15 21:16:55,196 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3060-3061] [2022-10-15 21:16:55,214 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--block--paride--pt.ko-entry_point.cil.out.i[90990,91003] [2022-10-15 21:16:55,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:16:55,419 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:16:55,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55 WrapperNode [2022-10-15 21:16:55,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:16:55,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:16:55,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:16:55,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:16:55,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,629 INFO L138 Inliner]: procedures = 119, calls = 771, calls flagged for inlining = 38, calls inlined = 36, statements flattened = 1573 [2022-10-15 21:16:55,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:16:55,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:16:55,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:16:55,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:16:55,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,838 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:16:55,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:16:55,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:16:55,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:16:55,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (1/1) ... [2022-10-15 21:16:55,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:16:55,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:16:55,932 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 21:16:56,031 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 21:16:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2022-10-15 21:16:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2022-10-15 21:16:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-15 21:16:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-15 21:16:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2022-10-15 21:16:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2022-10-15 21:16:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2022-10-15 21:16:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2022-10-15 21:16:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:16:56,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:16:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:16:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2022-10-15 21:16:56,154 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2022-10-15 21:16:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-15 21:16:56,155 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-15 21:16:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2022-10-15 21:16:56,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2022-10-15 21:16:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:16:56,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:16:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2022-10-15 21:16:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2022-10-15 21:16:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2022-10-15 21:16:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2022-10-15 21:16:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2022-10-15 21:16:56,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2022-10-15 21:16:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:16:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2022-10-15 21:16:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2022-10-15 21:16:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:16:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:16:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:16:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:16:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:16:56,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:16:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:16:56,158 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:16:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2022-10-15 21:16:56,158 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2022-10-15 21:16:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:16:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2022-10-15 21:16:56,159 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2022-10-15 21:16:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2022-10-15 21:16:56,159 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2022-10-15 21:16:56,159 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-15 21:16:56,159 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-15 21:16:56,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:16:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-15 21:16:56,161 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-15 21:16:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-15 21:16:56,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-15 21:16:56,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:16:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:16:56,162 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2022-10-15 21:16:56,162 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2022-10-15 21:16:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-10-15 21:16:56,163 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-10-15 21:16:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2022-10-15 21:16:56,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2022-10-15 21:16:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:16:56,164 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2022-10-15 21:16:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2022-10-15 21:16:56,165 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2022-10-15 21:16:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2022-10-15 21:16:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_20 [2022-10-15 21:16:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_20 [2022-10-15 21:16:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-10-15 21:16:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-10-15 21:16:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2022-10-15 21:16:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2022-10-15 21:16:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:16:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:16:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2022-10-15 21:16:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2022-10-15 21:16:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2022-10-15 21:16:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2022-10-15 21:16:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:16:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:16:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2022-10-15 21:16:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2022-10-15 21:16:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2022-10-15 21:16:56,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2022-10-15 21:16:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2022-10-15 21:16:56,171 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2022-10-15 21:16:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-15 21:16:56,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-15 21:16:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2022-10-15 21:16:56,172 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2022-10-15 21:16:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:16:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2022-10-15 21:16:56,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2022-10-15 21:16:56,173 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2022-10-15 21:16:56,173 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2022-10-15 21:16:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:16:56,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:16:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:16:56,174 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:16:56,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:16:56,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:16:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2022-10-15 21:16:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2022-10-15 21:16:56,175 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:16:56,175 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:16:56,683 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:16:56,690 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:16:56,878 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:17:05,814 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:17:05,833 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:17:05,834 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 21:17:05,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:17:05 BoogieIcfgContainer [2022-10-15 21:17:05,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:17:05,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:17:05,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:17:05,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:17:05,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:16:53" (1/3) ... [2022-10-15 21:17:05,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e38949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:17:05, skipping insertion in model container [2022-10-15 21:17:05,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:16:55" (2/3) ... [2022-10-15 21:17:05,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e38949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:17:05, skipping insertion in model container [2022-10-15 21:17:05,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:17:05" (3/3) ... [2022-10-15 21:17:05,849 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i [2022-10-15 21:17:05,873 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:17:05,874 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 124 error locations. [2022-10-15 21:17:05,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:17:05,997 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;@50596dce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:17:05,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2022-10-15 21:17:06,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 958 states, 621 states have (on average 1.5136876006441224) internal successors, (940), 764 states have internal predecessors, (940), 172 states have call successors, (172), 45 states have call predecessors, (172), 44 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) [2022-10-15 21:17:06,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 21:17:06,028 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:06,029 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 21:17:06,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:17:06,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1716968544, now seen corresponding path program 1 times [2022-10-15 21:17:06,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:06,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361099368] [2022-10-15 21:17:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:06,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:06,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:06,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:17:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:06,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:17:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:06,739 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 21:17:06,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:06,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361099368] [2022-10-15 21:17:06,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361099368] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:06,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:06,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:17:06,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797145060] [2022-10-15 21:17:06,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:06,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:17:06,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:06,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:17:06,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:06,789 INFO L87 Difference]: Start difference. First operand has 958 states, 621 states have (on average 1.5136876006441224) internal successors, (940), 764 states have internal predecessors, (940), 172 states have call successors, (172), 45 states have call predecessors, (172), 44 states have return successors, (169), 169 states have call predecessors, (169), 169 states have call successors, (169) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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 21:17:13,584 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 21:17:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:15,856 INFO L93 Difference]: Finished difference Result 2178 states and 2948 transitions. [2022-10-15 21:17:15,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:17:15,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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 21:17:15,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:15,887 INFO L225 Difference]: With dead ends: 2178 [2022-10-15 21:17:15,887 INFO L226 Difference]: Without dead ends: 1203 [2022-10-15 21:17:15,903 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 21:17:15,907 INFO L413 NwaCegarLoop]: 1211 mSDtfsCounter, 570 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 214 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 2558 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:15,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 2558 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 748 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-10-15 21:17:15,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2022-10-15 21:17:16,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1104. [2022-10-15 21:17:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 731 states have (on average 1.476060191518468) internal successors, (1079), 866 states have internal predecessors, (1079), 190 states have call successors, (190), 59 states have call predecessors, (190), 59 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190) [2022-10-15 21:17:16,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1459 transitions. [2022-10-15 21:17:16,071 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1459 transitions. Word has length 37 [2022-10-15 21:17:16,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:16,072 INFO L495 AbstractCegarLoop]: Abstraction has 1104 states and 1459 transitions. [2022-10-15 21:17:16,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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 21:17:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1459 transitions. [2022-10-15 21:17:16,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 21:17:16,075 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:16,076 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 21:17:16,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:17:16,077 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:17:16,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:16,077 INFO L85 PathProgramCache]: Analyzing trace with hash 697338872, now seen corresponding path program 1 times [2022-10-15 21:17:16,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:16,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430189268] [2022-10-15 21:17:16,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:16,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:16,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:16,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:17:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:16,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:17:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:16,281 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 21:17:16,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:16,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430189268] [2022-10-15 21:17:16,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430189268] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:16,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:16,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:17:16,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111130113] [2022-10-15 21:17:16,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:16,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:17:16,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:16,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:17:16,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:16,286 INFO L87 Difference]: Start difference. First operand 1104 states and 1459 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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 21:17:24,584 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 21:17:27,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:27,291 INFO L93 Difference]: Finished difference Result 2848 states and 3778 transitions. [2022-10-15 21:17:27,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:17:27,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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 21:17:27,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:27,319 INFO L225 Difference]: With dead ends: 2848 [2022-10-15 21:17:27,320 INFO L226 Difference]: Without dead ends: 1776 [2022-10-15 21:17:27,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:17:27,333 INFO L413 NwaCegarLoop]: 1808 mSDtfsCounter, 1176 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 336 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 3261 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:27,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 3261 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 883 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2022-10-15 21:17:27,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2022-10-15 21:17:27,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1664. [2022-10-15 21:17:27,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 1138 states have (on average 1.4578207381370827) internal successors, (1659), 1280 states have internal predecessors, (1659), 308 states have call successors, (308), 94 states have call predecessors, (308), 94 states have return successors, (308), 308 states have call predecessors, (308), 308 states have call successors, (308) [2022-10-15 21:17:27,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2275 transitions. [2022-10-15 21:17:27,471 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2275 transitions. Word has length 37 [2022-10-15 21:17:27,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:27,472 INFO L495 AbstractCegarLoop]: Abstraction has 1664 states and 2275 transitions. [2022-10-15 21:17:27,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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 21:17:27,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2275 transitions. [2022-10-15 21:17:27,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 21:17:27,480 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:27,481 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, 1] [2022-10-15 21:17:27,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:17:27,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:17:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:27,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1262853521, now seen corresponding path program 1 times [2022-10-15 21:17:27,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:27,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304035888] [2022-10-15 21:17:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:27,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:27,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:27,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:27,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:17:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:27,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:17:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:27,840 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 21:17:27,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:27,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304035888] [2022-10-15 21:17:27,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304035888] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:27,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:27,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:17:27,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005135188] [2022-10-15 21:17:27,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:27,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:17:27,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:27,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:17:27,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:27,846 INFO L87 Difference]: Start difference. First operand 1664 states and 2275 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 21:17:33,894 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 21:17:36,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:36,072 INFO L93 Difference]: Finished difference Result 3389 states and 4649 transitions. [2022-10-15 21:17:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:17:36,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 40 [2022-10-15 21:17:36,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:36,087 INFO L225 Difference]: With dead ends: 3389 [2022-10-15 21:17:36,087 INFO L226 Difference]: Without dead ends: 1757 [2022-10-15 21:17:36,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:36,096 INFO L413 NwaCegarLoop]: 1153 mSDtfsCounter, 277 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 166 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:36,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 2510 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 722 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-10-15 21:17:36,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2022-10-15 21:17:36,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1700. [2022-10-15 21:17:36,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1168 states have (on average 1.4580479452054795) internal successors, (1703), 1310 states have internal predecessors, (1703), 314 states have call successors, (314), 94 states have call predecessors, (314), 94 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2022-10-15 21:17:36,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2331 transitions. [2022-10-15 21:17:36,191 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2331 transitions. Word has length 40 [2022-10-15 21:17:36,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:36,192 INFO L495 AbstractCegarLoop]: Abstraction has 1700 states and 2331 transitions. [2022-10-15 21:17:36,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 21:17:36,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2331 transitions. [2022-10-15 21:17:36,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 21:17:36,193 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:36,194 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, 1] [2022-10-15 21:17:36,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:17:36,194 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:17:36,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:36,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1262853557, now seen corresponding path program 1 times [2022-10-15 21:17:36,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:36,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590679604] [2022-10-15 21:17:36,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:36,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:36,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:36,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:36,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:17:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:36,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:17:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:36,418 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 21:17:36,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:36,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590679604] [2022-10-15 21:17:36,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590679604] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:36,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:36,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:17:36,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622930580] [2022-10-15 21:17:36,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:36,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:17:36,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:36,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:17:36,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:36,421 INFO L87 Difference]: Start difference. First operand 1700 states and 2331 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 21:17:42,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:17:45,659 WARN L539 Checker$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 21:17:46,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:17:46,536 INFO L93 Difference]: Finished difference Result 3979 states and 5543 transitions. [2022-10-15 21:17:46,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:17:46,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 40 [2022-10-15 21:17:46,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:17:46,554 INFO L225 Difference]: With dead ends: 3979 [2022-10-15 21:17:46,554 INFO L226 Difference]: Without dead ends: 2311 [2022-10-15 21:17:46,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:46,565 INFO L413 NwaCegarLoop]: 1581 mSDtfsCounter, 604 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 165 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:17:46,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 3270 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 796 Invalid, 2 Unknown, 0 Unchecked, 9.9s Time] [2022-10-15 21:17:46,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2022-10-15 21:17:46,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 1722. [2022-10-15 21:17:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1190 states have (on average 1.4529411764705882) internal successors, (1729), 1332 states have internal predecessors, (1729), 314 states have call successors, (314), 94 states have call predecessors, (314), 94 states have return successors, (314), 314 states have call predecessors, (314), 314 states have call successors, (314) [2022-10-15 21:17:46,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2357 transitions. [2022-10-15 21:17:46,675 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2357 transitions. Word has length 40 [2022-10-15 21:17:46,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:17:46,676 INFO L495 AbstractCegarLoop]: Abstraction has 1722 states and 2357 transitions. [2022-10-15 21:17:46,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 21:17:46,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2357 transitions. [2022-10-15 21:17:46,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-15 21:17:46,677 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:17:46,678 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-10-15 21:17:46,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:17:46,678 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [DRIVEErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, DRIVEErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, pt_completionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2022-10-15 21:17:46,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:17:46,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1449229483, now seen corresponding path program 1 times [2022-10-15 21:17:46,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:17:46,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645852229] [2022-10-15 21:17:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:17:46,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:17:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:17:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:46,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:17:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:46,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:17:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:46,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:17:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:17:46,955 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-10-15 21:17:46,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:17:46,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645852229] [2022-10-15 21:17:46,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645852229] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:17:46,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:17:46,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:17:46,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878475232] [2022-10-15 21:17:46,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:17:46,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:17:46,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:17:46,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:17:46,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:17:46,959 INFO L87 Difference]: Start difference. First operand 1722 states and 2357 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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)